EP1574195A2 - Room with variable ambient atmosphere - Google Patents

Abstract

When exercising with the aim of winning an important sports competition the training can be performed under the influence of an oxygen enriched or oxygen lacking atmosphere. An airtight room (1) is equipped with an air inlet (11, 14) and an air outlet (16, 19) as well as with oxygen (5), nitrogen (2), and carbon dioxide (8) supply units working with valves (12) and a distributing device (15) in order to be adjusted for the specific purpose. An additional container (13) facilitates the mixing of the gasses (2, 5. 8) if required. Moisture and temperature can also be regulated (20, 21).

Description

The invention relates to a lounge, especially for people or mammals filled with room air, their indoor air atmosphere is adjustable. The lounge is so dense that it is for a short Duration at least a slight overpressure compared to the lounge surrounding outside atmosphere. Overpressure refers it depends on the total air pressure in the lounge and not on the partial pressures of the air components. The lounge is with a Room air conditioning connected, which is formed, the indoor air in the lounge supply nitrogen-containing gas. Under nitrogenous Gas becomes a gas with an increased proportion of nitrogen compared to the ambient air or understood more or less pure nitrogen.

Such lounges are for example from the German Utility Model 202 60 632 known. The recreation room described there serves in particular as a sports training room the altitude air training in a room air atmosphere with respect to a Normalat-mosphäre lowered Oxygen partial pressure, so that prevailing in the lounge Oxygen partial pressure that of a Höhenluftatmosphäre in example 2000 m height corresponds.

Such a sports training room uses the known effect of a hypoxic atmosphere. A hypoxic atmosphere is an atmosphere with a relative to a normal atmosphere lowered oxygen content. Conversely, a hyperoxic atmosphere is an atmosphere whose Oxygen content greater than an oxygen content of a normal atmosphere is. In the last decades succeeded the sport science and the medical research worldwide to prove that the individual Targeted use of hypoxia proves to be useful.

Against this background there is a need to have a lounge which allows more extensive applications of hypoxia.

According to the invention, this goal by a lounge of the beginning achieved type whose room air conditioning is designed so that the lounge is either automatically or manually controlled nitrogen-containing gas with a nitrogen content of> 90% by volume or more or less pure, gaseous nitrogen or oxygen containing gas with an oxygen content> 60 vol.% To be supplied such that in the Lounge either hyperoxic or hypoxic indoor air atmospheres with a respective oxygen concentration in a range between at least 25% by volume and less than 18% by volume and a change of the indoor air atmosphere with respect to the oxygen concentration with a gradient of at least 1 vol.% per minute possible is.

In addition, the room air system is preferably adapted to the Room air in the lounge controlled automatically or by hand to supply carbon dioxide-containing gas or carbon dioxide such that in the Lounge either hypercapnic, normocapnic or hypocapnic Room air atmosphere with a respective carbon dioxide concentration between at least 0.1% by volume and less than 0.01% by volume are.

Such a lounge expanded with such a room air conditioning system the applications of previously known residence or Exercise rooms with hypoxic room air atmosphere huge. While it just matters in connection with sports practice rooms, over a longer period a more or less constant, hypoxic indoor air atmosphere can be maintained with the inventive lounge also very fast change of atmosphere the room air can be achieved. This opens up the lounge not only for sports exercises, but especially for medical Applications, for example, for molecular altitude medicine. A Treatment in the common room can therefore take the form of a separate one Therapy or a therapy supplement for numerous clinical pictures respectively. Such therapeutic applications may be, for example to treat bronchial asthma and chronic bronchitis, of cardiovascular diseases, of rheumatoid arthritis, of Allergies, sleep disorders, neurotic disorders or Skin, eye or gynecological diseases. An eye-opener Application is also the treatment of diabetes.

In that sense, the common room also serves to use gaseous nitrogen for the manufacture of an inhalable medicament for the treatment or prophylaxis of diabetes in a mammal, especially in humans, by a method comprising inhaling nitrogen (N ₂ ) in a concentration, in which the treatment or prophylaxis of this disease is therapeutically effective.

In this case, with such a quasi-normobaric atmosphere, only slightly increased total pressure in the common room the disadvantages avoided, which would bring a treatment at high altitudes, for example a high ozone content of the air or strong ultra-violet radiation. Thus, such a lounge also opens up cancer patients, especially after chemo- or radiotherapy, a treatment in oxygen-reduced atmosphere.

Furthermore, the atmosphere in the lounge can be relatively short term be changed so that within a few minutes hypoxic or Hyperoxic treatment phases with a normoxic room air atmosphere in the transition. The same applies to the carbon dioxide content the indoor air atmosphere, the hypocapnic, normocapan or hypercapnic is set. By deliberately changing the atmosphere in the common room, the indicated therapies can continue get supported.

In a preferred embodiment, the room air system with a programmable control unit connected such that through the room air conditioning the volume of oxygenated gas supplied to the treatment room or nitrogen-containing gas by the control unit adjustable are. In this way, freely programmable gradients for specify the room air atmosphere change. These are treatment procedures possible in which an atmosphere change in each direction with programmable gradients are just as possible as holding certain Room air atmosphere conditions over a given each Period of time.

Such a lounge promises further applications in the Field of molecular altitude medicine or molecular biology. in the In connection with the molecular biology is in particular the HIF 1 alpha (Hypoxia-indexable factor 1 alpha). This is a transcription factor the synthesis of, for example, erythropoiets (Epo), vascular endothelial growth factor (VEGF), transferrin, transferrin receptor, glycolytic enzymes and endothelin-1 controlled.

Furthermore, it is expected that the effect of drugs by a appropriate room air atmosphere is to support.

In addition, the dynamics of a room air atmosphere change also have a physiological effect. These effects are with previously known Lounge with hypoxic atmosphere can not be achieved.

In connection with the control unit, for the volume flows it is finally possible to use the control unit with physiological sensors too connect, via the body signals of a residing in the lounge Person, for example, blood oxygen saturation, Blood pressure, or also electroencephalograms or electrocardiograms.

Finally, in this way, the dynamics of room air atmosphere changes can be adapted to the individual characteristics of a person in the lounge, for example, at the heart rate or blood pressure thereof. In this context, it is already known that there are significant individual differences in the arterial O ₂ saturation of different persons in the same indoor air atmosphere.

To realize the desired dynamics of the room air atmosphere change To be able to, a lounge is preferred, its air conditioning system the recreation room adjustable between 0 to at least 8 liters gaseous nitrogen per second per cubic meter of room volume Lounge can supply. Preferably, the room air system, between 0 and at least 19 liters of gaseous nitrogen per second each cubic meter of volume. In terms of oxygen the air conditioning system is preferably formed, the lounge adjustable between 0 to at least 1.5 liters of gaseous oxygen to feed per cubic meter of room volume per second, Preferably, the oxygen volume flow is adjustable 0 to at least 3 liters of oxygen per second per cubic meter of room volume.

To allow a regulation of the room air atmosphere and in particular It is also possible to control a dynamic of the room air atmosphere change in the lounge preferably a sensor for the oxygen concentration the room air atmosphere arranged with the control unit connected is. Likewise, in a preferred lounge, a sensor provided for the carbon dioxide concentration of the room air atmosphere and connected to the control unit.

To stop the aforementioned hypercapnic atmosphere, the Room air conditioning further preferably designed to contain carbon dioxide Gas with a carbon dioxide content of more than 20% vol. Or alternatively also to supply pure, gaseous carbon dioxide. For this purpose is the air conditioning system preferably formed, the lounge adjustable between 0 to at least 0.1 liter of gaseous carbon dioxide to supply per cubic meter of room volume per second. Preferably the volume flow of gaseous carbon dioxide between 0 and at least 0.4 liters per second per cubic meter of room volume adjustable.

The gases or gas mixtures to be supplied to the common room are preferably storage tanks for liquid gas, that is for liquid nitrogen, taken from liquid oxygen or liquid carbon dioxide.

For merging the gases to be supplied to the common room the common room preferably has a mixing chamber which either as part of the room air conditioning or as part of the lounge with Supply lines at least for the nitrogen-containing gas and the oxygen-containing Gas is connected, preferably in addition with a supply line for the carbon dioxide-containing gas.

If the mixing chamber is provided as part of the room air system, it is upstream of the common room and via a supply line to the common room connected.

Alternatively, the mixing chamber can also be a through an air-permeable Diaphragm or diffuser detached from the rest of the lounge Be part of the lounge. In the latter part can be an in Regarding the volume of the lounge quite large mixing chamber realize. In addition, the gas exchange between the mixing chamber and the rest of the lounge over a large area and thus with very low flow rate and very evenly.

Furthermore, a preferred lounge on a recirculation system, the via an air inlet and an air outlet at least indirectly with the Lounge is connected and is formed, the room air in the recirculation mode to treat. In such an arrangement, the previously described indoor air system and the recirculation system mentioned here as components a single air-conditioning system in a broader sense, the components of which are the room air installation for the supply of nitrogen, Oxygen and carbon dioxide in the strict sense and the recirculation system is.

The recirculation system is preferably designed, the room air in terms to treat the humidity and the air temperature. This is the air circulation system preferably connected to the control unit. In the lounge are preferably a temperature sensor for the room air temperature and a humidity sensor for humidity provided, both with the control unit are connected. That way, the treatment can be the room air in recirculation mode automatically controlled by the control unit done in such a way that the relative humidity in the lounge preferably between 40 and 60% and the air temperature in the common room is preferably between 18 ° C and 20 ° C. Preferably is the recirculation system for further treatment of the room air through particle filtration and ionization to eliminate hydrocarbons educated.

In addition, the recirculation system preferably has a fresh air inlet, which is connected to an outside atmosphere outside the common room is and is connected so that the guided in the recirculation mode Room air fresh air is to be supplied.

The common room also preferably has a controllable Room air outlet, which opens into the environment of the lounge and its air passage with respect to differential pressure or volume flow is controllable, preferably by the control unit.

In connection with the control of the room air outlet and whose air passage is the control unit preferably with a Pressure sensor for the total pressure of the room air atmosphere in the recreation room connected and adapted to the room air outlet so control that in the recreation room compared to an overpressure of 1% to 3% an ambient atmosphere outside the common room prevails. With respect to a normal pressure at sea level of about 1013 hPa this means that in the recreation room a total air pressure of 1023 to 1040 hPa prevails. This total air pressure in the lounge of course depends on the weather-related air pressure.

The common room is preferably in this context executed that he had a slight overpressure at least a few minutes holds.

In connection with the treatment of persons or patients in the lounge, the control unit preferably has connections for connecting sensors for physiological parameters of each Patients on. This makes it possible to control the room air atmosphere completely to the individual requirements of the respective patient and in particular a particularly effective room air dynamics to effect. Especially the latter aspect is of extraordinary Meaning for the therapy of patients or for a support of the Medication effect through a corresponding room air atmosphere or atmospheric dynamics.

Figur 1:

einen Aufenthaltsraum mit Raumluftanlage und Umluftanlage;

Figur 2:

einen Aufenthaltsraum, ähnlich Figur 1, mit einer Mischkammer in Form eines abgetrennten Raumanteils des Aufenthaltsraums; und

Figur 3:

einen Aufenthaltsraum mit einer Mischkammer als gemeinsamer Bestandteil der Raumluft- und Umluftanlage.

The invention will now be explained in more detail by means of embodiments with reference to the drawings. From the figures show

FIG. 1:

a lounge with room air conditioning and air circulation system;

FIG. 2:

a common room, similar to Figure 1, with a mixing chamber in the form of a separated space portion of the common room; and

FIG. 3:

a common room with a mixing chamber as a common part of the room air and recirculation system.

The lounges shown in Figures 1 to 3 show as common Features each a recreation room as a training or therapy room 1. In addition, in each case a nitrogen container 2 and one connected thereto Nitrogen metering unit 3 provided via the nitrogen flow from the nitrogen tank 2 in terms of volume flow and / or pressure and optionally the temperature and humidification can be controlled. The Nitrogen dosing unit 3 is via a nitrogen inlet either directly to the Lounge 1 or indirectly via a mixing chamber 13 or a separated Room part of the common room 1 connected to the lounge 1. In a corresponding manner, an oxygen container 5 is provided in each case, which is connected to an oxygen metering unit 6, which has an oxygen volume flow or pressure with respect to an oxygen inlet 7 that controls itself either in the recreation room 1 or in the mixing chamber 13 or a separate Room part of the lounge 1 is located.

In just such a way, a carbon dioxide container 8 is provided with the connected to a carbon dioxide metering unit 9 and via this with a carbon dioxide inlet 10, which is either directly in the lounge 1 or in the mixing chamber 13 or in a separate part of the common room. 1 empties.

Furthermore, the lounge is equipped with a recirculation system, which has a Air outlet 16 and an air inlet 14 connected to the common room 1 is. Between the air outlet 16, through which the room air in the lounge 1 can enter the recirculation system and the air inlet 14, with the the circulating air is supplied to the common room 1 again, is an air outlet control unit 17 is provided, which on the one hand has an air outlet 19 which in the environment leads, and on the other hand with a recirculation line 18 is connected. The Luftauslassdosiereinheit 17 is in terms of volumetric flow rate, which is the Recirculation line 18 is supplied and which is supplied to the air outlet 19, controllable. With the help of Luftauslassdosiereinheit 17 is also a desired pressure in the lounge 1 opposite a lounge surrounded Outdoor atmosphere adjustable.

The recirculation line 18 opens into a mixing chamber 13. This mixing chamber 13th also has a fresh air inlet 11 with a regulated fresh air valve 12 for controlling a fresh air volume flow in the mixing chamber 13. Output side is the mixing chamber 13 via the air inlet 14 with the lounge 1 (Figures 1 and 3) or the separated part of the common room. 1 connected. For controlling the nitrogen dosing unit 3, the oxygen dosing unit 6, the carbon dioxide dosing unit 9, the mixing chamber 13, the fresh air valve 12 and the Luftauslassdosiereinheit 17 are these with a central electronic Control unit 21 connected. In addition, in the common room 1 several sensors 20 for the oxygen and the carbon dioxide concentration as well intended for the humidity, the air temperature and the air pressure, the are all connected to the electronic control unit 21. In this way can the indoor air atmosphere in the lounge 1 in terms Oxygen concentration, nitrogen concentration, carbon dioxide concentration, air humidity, Air temperature and pressure control and regulate.

In the area of the recirculation system, for example, within or near the Mixing chamber 13 are a particulate filter for collecting dust and an ionizer for the elimination of hydrocarbons.

A special feature also provides an air-permeable membrane 15 in the Lounge according to Figure 3, which is the separated room part of the lounge separates from the remaining common room 1. The air-permeable membrane 15 acts as a diffuser in the aerodynamic sense. Recirculation inlet 14, nitrogen inlet 4, oxygen inlet 7 and carbon dioxide inlet 10 each open into the through the membrane 15 separated room part of the lounge 1. On this Way, the gases supplied to the separated room part can mix and it is for a very even and low volume airflow between the separated room part and the other lounge 1 taken care of.

The common room 1 is up to the described gas inlets and outlets in Substantially airtight and has a door 22 which closes so tightly, that in the common room 1 for at least a few minutes a small Maintained air pressure. The door 22 can optionally directly into the Surrounding the lounge 1 lead or in between the environment and the lounge provided airlock.

With respect to the living room shown in Figure 3 together with convection and indoor air system 1 it should be noted that the components of the air conditioning system over the air mixing chamber 13 are connected directly to the recirculation system, as the Nitrogen inlet 4, the oxygen inlet 7 and the carbon dioxide inlet 10 of Room air conditioning not directly in the lounge 1 open, but in the Mixing chamber 13 of the recirculation system.

Below is now the operation of the lounge with connected Recirculation and air conditioning system are described, in relation to the embodiment in Figure 1. The description applies to the rest Embodiments accordingly.

The plant is used for the selective production of an oxygen-reduced (hypoxic <20.9 Vol%), a normal (normoxic = 20.9 Vol%) or one oxygen-enriched (hyperoxic> 20.9% by volume) atmosphere and the in freely selectable time intervals dynamic change between these different Atmospheres or the stable maintenance of a manufactured condition over a variable period of time in a closed or almost enclosed space when staying with or without physical activity of Humans and / or animals.

In addition, carbon dioxide-enriched (hypercapnic) and carbon dioxide-reduced (hypocapnic) atmospheric conditions with each variant be coupled to the oxygen concentration.

The atmosphere in the room becomes permanent and according to the chosen atmosphere Oxygen concentrations and time intervals regulated circulated.

The centrally controlled functional unit for transport and air conditioning and hygienic processing of the gas mixture in recirculation mode with the mixing chamber 13 sucks in the lounge 1 located Gas mixture via the outlet 16, the centrally controlled functional unit (Luftauslassdosiereinheit 17) for the metered separation of the volume flows circulating air atmosphere and used atmosphere and the pipe connection (recirculation line 18) from the room. In the functional unit 13 (mixing chamber) is a controlled air conditioning (temperature and humidity), particle filtration, an ionization for the elimination of hydrocarbons and the regulation the size and velocity of the volume flow of the circulating air atmosphere.

From the functional unit 13, the processed atmosphere via the recirculation air inlet 14 in the back in the room (Figure 1 and 3) or in the separated pressed first part of the room 1 and flows through a corresponding the volume flows permeable membrane in the second part of the room. 1 back (Figure 2).

The controlled functional unit (Luftauslassdosiereinheit 17) to the metered Separation of the volumetric flows, circulating air atmosphere and used atmosphere regulates the amount of used atmosphere so that it is a little smaller than the total amount of gases supplied. Taking into account existing Leak rates of space thus exists in the room and when mixing the atmosphere a slight overpressure (preferably 1 - 3%).

The production of an oxygen-reduced (<20.9% by volume, preferably 17 to 7 Vol%) atmosphere in the closed or almost closed room 1 inside a specified time interval or according to a predetermined Time function for the change of the oxygen concentration takes place by the container 2 a variable amount of nitrogen per unit time by the central controlled nitrogen dosing unit 3 via the nitrogen inlet 4 in the lounge 1 is headed. The nitrogen mixes with the gas mixture, the is forced into the room via the air intake 14 at the same time.

The nitrogen dosing unit 3, which is centrally controlled and regulated, takes the Connection and disconnection of the volume flow nitrogen, the required variable Temperature control, the required variable humidification, as well as the volume flow and Pressure regulation before.

The preparation of an oxygen-enriched (> 20.9% by volume, preferably 24 to 28 vol.%) atmosphere in the closed or almost closed Room 1 within a specified time interval or according to a predetermined Time function for the change of the oxygen concentration takes place, by from the oxygen tank 5, a variable amount of oxygen per unit time through the centrally controlled oxygen metering unit 6 via the oxygen inlet 7 in the room 1 is passed. The oxygen mixes with the gas mixture, which is forced through the air inlet 14 at the same time in the room.

The oxygen metering unit 6, which is centrally controlled and regulated, takes the Connection and disconnection of the volume flow oxygen, the required variable Temperature control, the required variable humidification, as well as the volume flow and Pressure regulation before.

The dynamic change of a way of operation of the plant in which the oxygen concentration lowered or kept constant, to a working method the plant, where the oxygen concentration increases, is made that the nitrogen volume flow is interrupted and a corresponding oxygen volume flow starts. At the same time, all pressure and volume flow dependent Processes are regulated accordingly.

The change of atmosphere in the room from an initial concentration to a higher concentration of oxygen within a specified time interval or according to a predetermined time function for the change the oxygen concentration takes place by a from the oxygen tank 5 a Variable amount of oxygen per unit of time through the centrally controlled Sauerstoffdosiereinheit 6 is passed via the oxygen inlet 7 in the room 1. Of the Oxygen mixes with the gas mixture through the air inlet 14 at the same time is pressed into the room.

If the starting gas mixture has an oxygen concentration <20.9% by volume is present, a part or the total amount of oxygen can be treated by Fresh air to be replaced.

In this case, via the fresh air inlet 11 and the controlled fresh air valve 12 a corresponding amount of fresh air through the functional unit in the Mixing chamber 13 of the existing atmosphere mixed.

The dynamic change of a way of operation of the plant in which the oxygen concentration is increased or kept constant, to a way of working the Plant in which the oxygen concentration decreases, is made so that the oxygen volume flow is interrupted and a corresponding nitrogen volume flow starts. At the same time, all pressure and volume flow dependent Processes are regulated accordingly.

The change of atmosphere in the room from an initial concentration to a lower concentration of oxygen within a specified range Time interval or according to a predetermined time function for the change the oxygen concentration is carried out by from the nitrogen tank. 2 a variable amount of nitrogen per unit time through the centrally controlled nitrogen dosing unit 3 is passed through the nitrogen outlet 4 in the room 1. Of the Nitrogen mixes with the gas mixture, via the air intake 14 at the same time is pressed into the room.

If the starting gas mixture has an oxygen concentration> 20.9% by volume is present, a part or the entire amount of nitrogen can be treated by Fresh air to be replaced.

In this case, via the fresh air inlet 11 and the controlled fresh air valve 12 a corresponding amount of fresh air through the functional unit in the Mixing chamber 13 of the existing atmosphere mixed.

Should the operation of the plant of a dynamic change in the oxygen concentration to a mode of operation in which the oxygen concentration remains constant, override, when the target concentration of the Oxygen in the room atmosphere, the volume flows are re-regulated.

The sum of all volume flows can be reduced to such an amount which is just the carbon dioxide concentration in the room below a set limit, preferably 3000 - 5000 ppm maintained. The amount of carbon dioxide supplied by humans and / or animals and Fresh air minus the missing amount of carbon dioxide in the starting gas quantities Nitrogen and oxygen is then in the amount of carbon dioxide in the derived spent atmosphere in equilibrium.

When a normal (20.9 Vol.% Oxygen) room atmosphere is constant should, the required amount of fresh air (= 20.9 vol.% Oxygen, normoxic) to comply with the specified limit concentration of carbon dioxide over the fresh air inlet 11 and the fresh air valve 12 are sucked into the mixing chamber 13, there processed with the circulating air atmosphere to the desired room atmosphere and passed through the recirculation inlet 14 into the room.

When an oxygen-reduced (<20.9 vol% oxygen, hypoxic) room atmosphere is constant, the required amount of oxygen-reduced Gas mixture, which compliance with the specified limit concentration Carbon dioxide ensures by mixing nitrogen and fresh air produced. Instead of fresh air, oxygen can also be used optionally. The mixing ratio and the volume flows are subject to a regulation, which the deviations from the standard values measured by the sensors in the room equalizes the oxygen and carbon dioxide concentration.

The maintenance of an oxygen-reduced (<20.9% by volume, preferably 17 to 7 vol.%) Atmosphere in the closed or almost closed Room 1 is done by simultaneously from the nitrogen tank 2 a variable Amount of nitrogen per unit of time through the centrally controlled nitrogen dosing unit 3 via the nitrogen inlet 4 and a manufactured in the mixing chamber 13 Gas mixture from Umluftraumatmosphäre and regulated amount of fresh air via the recirculation inlet 14 are directed into the room 1 and the deviations from balance the standard values.

If fresh air is wholly or partially replaced by oxygen, in addition a variable amount of oxygen per unit time from the oxygen tank. 5 through the centrally controlled oxygen metering unit 6 via the oxygen inlet 7 headed into the room.

When an oxygen-enriched (hyperoxic> 20.9 vol%) atmosphere is constant, the required amount of oxygen-enriched Gas mixture, which compliance with the specified limit concentration Carbon dioxide ensures, produced by the mixing of oxygen and fresh air. The mixing ratio and the volume flows are subject to regulation, which are the deviations of the standard values of the oxygen and carbon dioxide concentration compensates.

The maintenance of an oxygen-reduced (> 20.9% by volume, preferably 24 to 7% by volume) atmosphere in the closed or almost closed Room 1 is done by simultaneously from the oxygen tank 5 a variable Amount of oxygen per unit of time through the centrally controlled Sauerstoffdosiereinheit 6 via the oxygen inlet 7 and a manufactured in the mixing chamber 13 Gas mixture from Umluftraumatmosphäre and regulated amount of fresh air be routed through the air intake 14 in the room 1 and the deviations from the standard values.

If a normal carbon dioxide concentration is to be present in the room, the Operation with dynamically changing oxygen concentrations Carbon dioxide in of such an amount per unit of time in the room added that the normal value of 390 ppm.

The amount results from the lack of carbon dioxide content of the starting gases used Nitrogen and oxygen minus the per unit time by humans or animals, or introduced fresh air and existing in the room air Amount of carbon dioxide.

The production and maintenance of the carbon dioxide concentration takes place by from the carbon dioxide container 8 a variable amount of carbon dioxide per Time unit through the centrally controlled Kohldioxiddosiereinheit 9 over the Carbon dioxide inlet 10 is passed into the room 1. The carbon dioxide mixes with the gas mixture through the air inlet 14 at the same time in the room is pressed.

The carbon dioxide dosing unit 9, which is centrally controlled and regulated, decreases the connection and disconnection of the volume flow of carbon dioxide, the required variable temperature control, the required variable humidification, as well as the volume flow and pressure regulation.

If in the room atmosphere a hypercapnic carbon dioxide concentration is present when operating with dynamically changing oxygen concentrations Added carbon dioxide in such an amount per unit of time in the room that the desired concentration is present. The amount is calculated the existing carbon dioxide content of the starting gases used nitrogen and Oxygen minus the per unit time by humans or animals, or fresh air introduced and existing in the room air amount of carbon dioxide.

Reduction of carbon dioxide concentration including production Hypocapnic atmospheres via the reduction of the supplied amount of carbon dioxide and the amount of carbon dioxide lost in the spent atmosphere. Additionally or alternatively, a chemical elimination of the Carbon dioxide, e.g. with the help of lime, done to the carbon dioxide concentration lower.

Claims (30)

Lounge for people or animals, which is filled with room air and is designed to hold at least a slight excess of pressure over a surrounding outside of the lounge outside atmosphere, wherein the lounge is connected to a room air conditioning system, which is formed, the room air in the lounge automatically or manually controlled feed nitrogen-containing gas with a nitrogen content greater than 90 vol.% Or oxygen-containing gas with an oxygen content greater than 60 vol.% Such that in the recreation room optionally hyperoxic or hypoxic indoor air atmospheres with a respective oxygen concentration between at least 25 vol.% And less are set as 18 Vol.% and a change in the room air atmosphere with respect to the oxygen concentration with a gradient of at least 1 vol.% O ₂ per minute is possible. A recreation room according to claim 1, characterized in that the room air system is adapted to supply the room air in the lounge automatically or manually controlled carbon dioxide gas or carbon dioxide such that in the recreation room optionally hypercapnic, normocapnic or hypocapnic indoor air atmospheres with a respective carbon dioxide concentration between at least 0, 1% by volume and less than 0.01% by volume. Lounge according to claim 1 or 2, characterized by a room air system which is connected to a programmable control unit such that the room supplied by the room air system volume flows of the oxygen-containing or the nitrogen-containing gas are adjustable by the control unit. Lounge according to claim 3, characterized in that the room air system is adapted to the lounge adjustable between 0 to supply at least 8 liters of gaseous nitrogen per second per cubic meter volume of the lounge. Lounge according to claim 4, characterized in that the room air system is adapted to the lounge adjustable between 0 to at least 19 liters of gaseous nitrogen per second per cubic meter of room volume of the lounge supply. Lounge according to claim 3, characterized in that the room air system is adapted to the lounge adjustable between 0 to supply at least 1.5 liters of gaseous oxygen per second per cubic meter volume of the lounge. Lounge according to claim 3, characterized in that the room air system is adapted to the lounge adjustable between 0 to supply at least 3 liters of gaseous oxygen per second per cubic meter volume of the lounge. A recreation room according to one of claims 3 to 7, characterized by at least one sensor arranged in the recreation room and connected to the control unit for the oxygen concentration of the ambient air atmosphere in the recreation room. Lounge according to one of claims 3 to 7, characterized by at least one sensor arranged in the common room and connected to the control unit for the carbon dioxide concentration of the ambient air atmosphere in the common room. Lounge according to one of claims 1 to 9, characterized in that the room air system is designed to supply the room air in the lounge automatically or manually controlled carbon dioxide gas with a carbon dioxide content greater than 10 vol.%. Lounge according to claim 10, characterized in that the room air system is adapted to the lounge adjustable between 0 to at least 0.1 liters of gaseous carbon dioxide per second per cubic meter of room volume of the lounge supply. Lounge according to claim 11, characterized in that the room air system is adapted to the lounge adjustable between 0 to at least 0.4 liters of gaseous carbon dioxide per second per cubic meter of room volume of the lounge supply. Lounge according to one of claims 1 to 12, characterized in that the room air system is to be connected to Voratsbehältern for liquid nitrogen and liquid oxygen. A lounge according to any one of claims 1 to 13, characterized by a mixing chamber which is connected as part of the room air system or the lounge with supply lines for the nitrogen-containing gas and for the oxygen-containing gas. Lounge according to claim 10 and 14, characterized in that the mixing chamber is connected to a feed line for the carbon dioxide-containing gas. Lounge according to claim 14, characterized in that the mixing chamber is connected upstream of the lounge as part of the room air system and connected via a supply line to the lounge. A common room according to claim 14, characterized in that the mixing chamber is a part of the common room separated from the rest of the common room via an air-permeable membrane or a diffuser. Lounge according to one of claims 1 to 17, characterized by a recirculation system, which is connected via an air inlet and an air outlet at least indirectly connected to the recreation room and is adapted to treat the room air in recirculation mode. Living room according to claim 18, characterized in that the air outlet of the recirculation system is connected to the mixing chamber or the separated part of the common room. Living room according to claim 18 or 19, characterized in that the recirculation system is designed to treat the room air in terms of humidity and air temperature. Lounge according to claim 3 and one of claims 18 or 19, characterized in that the recirculation system is connected to the control unit. Lounge according to claim 20, characterized by a temperature sensor for the room air temperature and a humidity sensor for the humidity, which are both connected to the control unit. Lounge according to claim 22, characterized in that the recirculation system is designed to set a relative humidity in the lounge between 40% and 60%. Lounge according to claim 22 or 23, characterized in that the recirculation system is designed to set an air temperature in the common room between 18 ° C and 22 ° C. Lounge according to one of claims 18 to 24, characterized in that the recirculation system is connected via a fresh air inlet with an outside atmosphere outside the lounge. Lounge according to one of claims 1 to 25, characterized by a controllable room air outlet, which opens into the environment of the common room and the air passage is controllable in terms of differential pressure or volume flow. Lounge according to claim 3 and 26, characterized in that the controllable room air outlet is connected to the control unit such that the air passage is set by the control unit. Lounge according to claim 27, characterized in that the control unit is connected to a pressure sensor for the total pressure of the room air atmosphere in the recreation room and designed to control the room air outlet such that in the recreation room an overpressure of 1% to 3% compared to an ambient atmosphere outside Lounge prevails. Lounge according to claim 28, characterized in that the recreation room is designed so tight that a small overpressure in the lounge holds at least a few minutes. Common room according to claim 3 and one of the other claims, characterized in that the control unit has connections for sensors for receiving physiological parameters of a person in the recreation room.

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