WO2018127932A1

WO2018127932A1 - Room oxygen enhancer with air purification

Info

Publication number: WO2018127932A1
Application number: PCT/IN2017/050563
Authority: WO
Inventors: Mahesh Gupta
Original assignee: Mahesh Gupta
Priority date: 2017-01-05
Filing date: 2017-12-01
Publication date: 2018-07-12

Abstract

A room oxygen enhancer (ROE) system for regulating oxygen concentration inside a room is provided. The ROE system (10) has an outdoor unit (14) having a compressor (26), a heat exchanger (28), a separator chamber (30), a silica gel chamber (32), an oxygen separator (34), a reservoir (36), a carbon filter (38) and an outdoor electronic control unit. The ROE system (10) further has an indoor unit (12) having an oxygen inlet (66), an Oxygen level sensor (76), an air quality sensor (78), a suction fan (80), a HEPA filter (82), an indoor electronic control unit. The outdoor unit (14) is configured to generate and supply oxygen to the indoor unit (12) and the indoor unit (12) is configured to filter the air inside the room and the oxygen supplied by the outdoor unit (14) with the HEPA filter (82) and supply the mixture of the oxygen and air to the room.

Description

"ROOM OXYGEN ENHANCER WITH AIR PURIFICATION"

Technical Field

The present disclosure relates to a room oxygen enhancer with air purification system. The disclosure is drawn to a novel oxygen enhancer that concentrates oxygen from environment outside the room and supplies it inside the room and, purifies the air inside the room to make it free of pollens, allergens, microorganisms, odour and small particulates, thereby significantly improving the indoor air quality.

Background

Home medical oxygen concentrators were made in the early- 1970s and the manufacturing output of these devices increased in the late 1970s. Prior to that era, home medical oxygen therapy required the use of heavy high-pressure oxygen cylinders or small cryogenic liquid oxygen systems. Both of these delivery systems required frequent home visits by suppliers to replenish oxygen supplies. Subsequently, oxygen concentrators became the preferred and most common means of delivering home oxygen. Patent Document US4561287 discloses an oxygen concentrator. Oxygen concentrators have been used extensively for supplying oxygen-enriched gas to respiratory patients, particularly those requiring relatively high oxygen concentrations in a breathable gaseous mixture over extended periods of time. Because oxygen concentrators deliver a breathable gas of between about 80- 95% oxygen from atmospheric air, thereby eliminating the requirement of bottled gas, oxygen cylinders, and the like, they have found substantial appeal especially in the home care field.

Further as disclosed in US patent document no. US6866701, Oxygen enhances the body's ability to rebuild itself, detoxify blood, and strengthen the immune system. It also heightens one's concentration, memory and alertness, sometimes in minutes. There are many more benefits of oxygen therapy, for example, it removes free radicals, reduces tissue swelling, increases neuronal energy metabolism in the brain, can create sustained cognitive improvement, wakes up sleeping (idling) brain cells that are metabolizing enough to stay alive but are not actively "firing", enhances the body's ability to fight bacterial and viral infections, deactivates toxins and poisons (e.g. side effects from some chemotherapy, spider bites, air pollution, etc.), enhances wound healing (stimulates new capillaries into wounds), creates an immediate aerobic state, acts as an anti-inflammatory, Oxygen in your body's water determines your immune energy, cell oxygen use controls alkalinity, etc. As evidenced in countries that suffer from high levels of air pollution, air quality ranks as among the most influential factors on health. Microscopic particles in Air, much too small to see with the naked eye are released into the air from cars, trucks, power plants, factories, and other sources. These microscopic fine particles travel deep into the lungs where they irritate the tissue, cause inflammation, and make existing illness of the airways and circulatory system worse.

Various types of oxygen concentrators are developed for use by patients or other persons. For example, patent documents US4971609 and US6520176 disclose portable oxygen concentrators. Such portable oxygen concentrators use air from inside the room. However, the air inside the room itself may not be pure and may have many pollutants resulting in poor air quality coming out of oxygen concentrators.

Oxygen concentrators have also been used along with air conditioners. For example, patent documents WO2004106815 and US6711913 disclose equipment for improving the air quality inside a room. However, such known oxygen concentrator lack many of the desired features. For example, these oxygen concentrators also use room air for concentrating oxygen. As known, there can be high level of dust, bacteria, pollen and other pollutants in the room air, which causes immense pollution and adversely affect lungs of animals and humans. As the same air is used for oxygen concentrator for providing concentrated oxygen supply, there is a risk that such pollutant may go in the supply line of concentrated oxygen also. Accordingly, such equipment or methods also use air from inside the limited space and thus may not provide optimum quality of air as desirable. These oxygen concentrator are mostly for medical purposes and used by an individual through a pipe/line connected directly to a mask. This only allows one user/patient to use concentrated oxygen while being stationary at one position. Also, current oxygen concentrators inlet air supply and outlet concentrated supply is in the same room. This may lead to inconvenience due to excess noise due to pump/compressor operation in the room. Further there can be problems related to over exposure of Oxygen concentrated supply. Many of the current oxygen concentrators lack the basic safety features for example, Cut-off device at certain oxygen levels to prevent excess concentrated supply, Cut-off device at certain time intervals to prevent over exposure. Further, many of the current oxygen concentrator/ enhancers are mask based which restricts the movement of the user. Also, the systems as known in the art does not have enough provisions for filtration of air that is supplied in the room.

Summary

A room oxygen enhancer (ROE) with air purification system for regulating oxygen concentration inside a room is provided. The ROE system has an outdoor unit having a compressor, a heat exchanger, a separator chamber, a silica gel chamber, an oxygen separator, a reservoir, a carbon filter and an outdoor electronic control unit. The ROE system further has an indoor unit having an oxygen inlet, an Oxygen level sensor, an air quality sensor, a suction fan, a HEPA filter, an indoor electronic control unit. The outdoor unit is configured to generate and supply oxygen to the indoor unit and the indoor unit is configured to filter the air inside the room and the oxygen supplied by the outdoor unit with the HEPA filter and supply the mixture of the oxygen and air to the room. In an aspect, the oxygen level sensor is coupled to the indoor ECU and the indoor ECU is configured to regulate the level of oxygen inside the room based on the input from oxygen level sensor. In an aspect, the outdoor ECU and the indoor ECU are configured to communicate with each other wirelessly.

In an aspect, the indoor unit is provided with a fragrance release mechanism to release a fragrance in the room when the system is in operation.

In an aspect, the system further comprises a control panel configured to control different operating parameters of the system and a display panel to display different operating parameters of the system. In an aspect, the control panel and the display panel are configured to communicate with the indoor ECU wirelessly.

In an aspect, the system further has an air direction valve, a nozzle and an exhaust manifold, wherein the air direction valve is configured to control supply of oxygen from the outdoor unit between the nozzle and the exhaust manifold.

In an aspect, the indoor unit further comprises an air flow controller electronically coupled to the indoor ECU (84) to regulate flow of oxygen inside the indoor unit. In an aspect, wherein the indoor unit further comprises a humidifier to humidify the air released from the indoor unit into the room.

In an aspect, the indoor unit and the outdoor unit are formed as a single unit to be installed in a wall opening.

Brief Description of Drawings FIG. 1 schematically illustrates a room oxygen enhancer (ROE) system in accordance with an embodiment of the present disclosure, installed in a room. FIG. 2 schematically illustrates the ROE system installed as a window unit in accordance with an embodiment.

FIG. 3 illustrates an outdoor unit in accordance with an embodiment.

FIG. 4 illustrates a back-perspective view of a housing of an outdoor unit in accordance with an embodiment.

FIG. 5 illustrates a front perspective view of a housing of an outdoor unit in accordance with an embodiment.

FIG. 6 schematically illustrates an indoor unit in accordance with an embodiment. FIG. 7 schematically illustrates a control panel on the indoor unit in accordance with an embodiment.

FIG. 8 schematically illustrates a display panel in accordance with an embodiment. FIG. 9 illustrates a remote controller in accordance with an embodiment.

Detailed Description

The present invention provides a novel and inventive room oxygen enhancer (ROE) system, which is adapted to automatically purify room air and enrich it with respirable oxygen levels. The phrase 'room' is used to refer to any space substantially confined or enclosed in order to control atmosphere within such space. In an embodiment, the ROE system of the present disclosure may be configured for use for a space suitable for inhabiting a living being. For example, residential houses, commercial buildings, office spaces, animal farms, hospitals, vehicle cabins, etc. In an embodiment, the ROE system may be configured for use for use in science and research such as research centres, laboratories, etc.

Referring to FIG. 1 , a room oxygen enhancer (ROE) system (10) is provided. The ROE system (10) of the present disclosure has an indoor unit (12) and an outdoor unit (14). As shown in FIG. 1 , the indoor unit (12) may be two separate units. The indoor unit (12) may be placed inside a room (16) and the outdoor unit (14) may be placed outside the room (16). The indoor unit (12) and the outdoor unit (14) may be connected with each other electronically, electrically and fluidly to facilitate sharing and interflow of control signals, power and air between the two units, as required. Necessary passage may be provided in a wall (18) or the room (16) to allow passage of cables or conduits (20) through the walls for facilitating interconnection between the indoor unit (12) and outdoor unit (14), while ensuring that there is negligible leakage of room atmosphere through such passages.

In an alternate embodiment as shown in FIG. 2, the indoor unit (12) and the outdoor unit (14) may be formed combined as a single unit and the ROE system (10) may be installed in a window or similar wall (18) opening such that the indoor unit (12) remains substantially inside the room (16) and the outdoor unit (14) remains substantially outside the room (16). The plane along the wall (18) may act as a separation zone for the indoor unit (12) and the outdoor unit (14). The indoor unit (12) and the outdoor unit (14) in such embodiment bay be housed inside a single casing and may be interconnected to each other electronically, electrically and fluidly, as required.

Referring to FIG. 3, the outdoor unit (14) has an air inlet (22), an air filter (24), a compressor (26), a heat exchanger (28), a separator chamber (30), a silica gel chamber (32), an oxygen separator (34), a reservoir (36), a carbon filter (38) and an outdoor electronic control unit, hereafter referred to as the outdoor ECU (40). The air inlet (22) provides for an entry point of atmospheric air inside the outdoor unit (14). The air filter (24) is provided at or near the air inlet (22) to filter out any dust particles or other air contaminants from the air before the air is processed further. The filter may be any known filter such as a sponge filter. Filtering of air is important to ensure that the air being delivered to downstream components is substantially free of any contaminants or particulate matters to ensure longer life and easy maintainability of the downstream components, as well as for ensuring high purity of air delivered in the room (16). After filtering the air with the air filter (24), the air is then compressed using the compressor (26) before it is processed further. The compressor (26) may be any known type of compressor (26). After compressing the air, the air is treated using a heat exchanger (28) to lower temperature of the air or cool down the air. The heat exchanger (28) may be any known heat exchanger (28) such as used in air conditioners. The heat exchanger (28) helps in bringing the temperature of the air to a level that is conducive for further processing of the air.

The air passing through the heat exchanger (28) may contain any dust or water particles. The separator chamber (30) is provided for further removing any particulate matters such as dust or water droplets from the air. In the separator chamber, the water condenses and separates from the compressed and cooled air. The separator chamber (30) may have a cyclone for separation of particulate matters from the air.

The water separated in the separator chamber exits the outdoor unit (14) and the compressed-dehumidified air is further passed into the silica gel chamber via a non-return- valve (42) for further dehumidification. The silica gel chamber (32) absorbs any remaining moisture from the air treated and delivered from the separator chamber (30). The non-return valve (42) may be provided between the cyclone and the silica gel chamber (32) to prevent any reverse flow of the air, i.e. flow of air from the silica gel chamber (32) towards the cyclone.

After treating the air in the silica gel chamber (32), the air is delivered to the oxygen separator (34). The Oxygen separator (34) works on the principle of Pressure Swing Adsorption (PSA) to separate nitrogen and oxygen present in the air. Any of the known PSA techniques - Standard Pressure Swing Adsorption, Rapid Pressure Swing Adsorption (RPSA) or Vacuum Pressure Swing Adsorption (VPSA), can be used in the Oxygen separator (34) to separate oxygen and Nitrogen. An exhaust outlet (44) may be provided with the oxygen separator (34) to allow release of Nitrogen separated from the air in the atmosphere surrounding the outdoor unit (14).

The oxygen from the oxygen separator (34) may be passed further into the reservoir (36). A pressure sensor (46) may be provided with the reservoir (36) to monitor pressure in the reservoir (36). The oxygen from the reservoir (36) is passed to the indoor unit (12) via a carbon filter (38) to remove any volatile organic gases that may be present along with Oxygen in the Reservoir (36). Further, the outdoor ECU (40) is electronically coupled to the compressor (26), the heat exchanger (28), the oxygen separator (34) and the pressure sensor (46) of the reservoir (36). The outdoor ECU (40) is configured to control activation or operation of these components. For example, the outdoor ECU (40) may be configured to switch off the compressor (26) and the heat exchanger (28) once the reservoir (36) is full. Further functions and configurations of the outdoor ECU (40) may be apparent from the foregoing description.

FIG. 4 and FIG. 5 illustrate a front perspective view and a back perspective view of the outdoor unit (14) in accordance with an embodiment. As shown, the outdoor unit (14) may have a housing (48) to house and secure different components of the outdoorunit (14). The housing (48) may be provided with a cooler fan (not shown) to for cooling of the components inside the outdoor unit (14). For facilitating flow of air inside the housing (48) of the outdoor unit (14), a fan inlet (50) and a fan outlet (52) may be provided. The cooler fan may be installed such that the fan sucks in air inside the housing (48) and then the air passes over different components inside the housing (48) and then the air is again thrown back outside the housing (48) through the fan outlet (52). In the embodiment as shown, the fan may be installed near the fan outlet (52) such that the running fan throws air inside the housing (48) to the outside environment for cooling the outdoor unit (14).

Further, an access door (54) may be provided in the housing (48). The access door (54) may be removably attached with the housing (48). The access door (54) may provide for covering or uncovering an opening in the housing (48) for accessing the components of the outdoor unit (14) inside the housing (48) for any maintenance or repair work. The access door (54) may be removably attached to the housing (48) using any known mechanisms such as bolts, hinges, etc. The housing (48) may further be provided with intake vents (56). The intake vents (56) may be configured for providing for an opening in the housing (48) for supplying of ambient air to the air inlet (22). The air inlet (22) may be coupled with the intake vents (56) to receive fresh air from the atmosphere. The intake vents (56), the fan inlet (50) and the fan outlet (52) may be provided with fine size net to prevent entry of any undesired object or animal inside the housing (48).

Further, referring to FIG. 5 the housing (48) may be provided with an Oxygen port (58) for supply of oxygen to the indoor unit (12). The Oxygen port (58) may be provided with a nozzle for easy fitment of a conduit over the nozzle for supply of Oxygen from outdoor unit (14) to the indoor unit (12). A flexible conduit may be used to carry the Oxygen received from the outdoor unit (14) to the indoor unit (12).

Further, the outdoor unit (14) may be provided with a data port (60) for a data/electronic connection between the indoor unit (12) and the outdoor unit (14). A control cable may be connected to the data port (60) to allow communication between the electrical or electronic control units of both outdoor and indoor unit (12). The data port (60) may be coupled with the outdoor ECU (40) of the outdoor unit (14). Furthermore, a power port (62) may be provided to supply electric power to the outdoor unit (14) for powering the different components of the outdoor unit (14). A drain channel (64) may be provided for draining the condensed moisture from the air during operation of the outdoor unit (14). The drain channel (64) may also be in form of a nozzle to facilitate connection of a pipe for managing the outflow of water from the drain channel (64).

The housing (48) is shown in a cuboid shape. Any other shape may be used as required for different applications. Further, the housing (48) may be made of any tough and weather resistant material as suitable, to withstand the environmental conditions and protect the components inside the housing (48) from outside dust and weather. The housing (48) may be provided with other acoustic arrangements to mitigate the noise generated by different components inside the housing (48). The housing (48) of the outdoor unit (14) may be configured for mounting either on a wall (18), or to be secured on a flat surface.

The outdoor unit (14) is installed outside the room (16) in an open to air environment. The outdoor unit (14) draws atmospheric air, filters it, dehumidifies it and separates oxygen from the atmospheric air. The remaining air containing mostly nitrogen is released back into the atmosphere while the oxygen is fed to the indoor unit (12) that is installed inside room (16). The outdoor unit (14) is specifically kept outside the room (16) to mitigate compressor (26)/fan/pump noise inside the room (16).

FIG. 6 schematically illustrates configuration of an indoor unit (12). As illustrated, the indoor unit (12) has an oxygen inlet (66), an air flow controller (68), an air direction valve (70), a nozzle (72), a humidifier (74), an Oxygen level sensor (76), an air quality sensor (78), a suction fan (80), a HEPA filter (82), an indoor ECU (84), a display panel (86), a control panel (88) and an exhaust manifold (90). The components of the indoor unit may be housing inside a casing as suitable. The casing of indoor unit may be configured for mounting inside the room, for example on a wall or a ceiling.

The air flow controller (68) controls the amount of oxygen flowing into the indoor unit (12) from the outdoor unit (14). The air flow controller (68) can be coupled with the indoor ECU (84) for controlling the operation of the air flow controller (68). The indoor ECU (84) may be configured to switch on or off the air flow controller (68) to regulate the flow of the oxygen in the room (16) as desired.

The air direction valve may be a user actuated valve that allows a user to toggle the flow of oxygen, either inside the room (16) or via a nozzle (72) to an oxygen mask for personal use. Further, an oxygen level sensor (76) is provided in the indoor unit (12). The oxygen level sensor (76) is configured to sense ambient oxygen level inside the room (16). The oxygen level sensor (76) may be coupled to ECU to detect level of oxygen present in the room (16) and provide a corresponding signal to the indoor ECU (84) and the display panel (86). The indoor ECU (84) may control the flow controller valve based on the signal of oxygen level sensor (76) to regulate the flow and level of oxygen inside the room (16). The oxygen level sensor (76) may be placed at a room air inlet (77) of the exhaust manifold (90).

The air quality Sensor senses air quality parameters like VOC (volatile organic compounds) level and PM 2.5 level inside the room (16) and generates and sends a signal indicating the air quality parameters to the indoor ECU (84) and the display panel (86). The suction fan is configured to suck the ambient air inside the room (16) into the indoor unit (12) and forces it through the air filtration system to purify the air inside the room (16) and make it free of harmful micro-organisms, PM 2.5 particulate matter and volatile organic compounds. The air then is released back inside the room (16) through the exhaust manifold. The exhaust manifold (90) is configured for release of purified air and oxygen inside the room (16). The exhaust manifold (90) may be provided with required provision for controlling direction of flow of the air from the exhaust manifold (90).

The indoor ECU (84) is electronically coupled to the various components of the indoor unit (12) and is also electronically coupled to the outdoor ECU (40) for overall operation of the ROE system (10). The indoor ECU (84) controls the operation of components of indoor unit (12) as well as the outdoor unit (14) based on the data/signals received from the oxygen level sensor, the air quality sensor and the air flow controller, and also based on input commands received from a user through the control panel (88). The indoor ECU (84) also communicates with the outdoor ECU (40) for outdoor unit's (14) operation.

The display panel (86) shows various operating parameters of the ROE system (10) as well as parameters reflecting state of ambient atmosphere such as PM 2.5 level, oxygen concentration inside the room (16), suction fan (80) speed, etc.. Further, the control panel (88) may have input devices such as buttons or touch sensors to allow a user to control the ROE system (10), for example set different fan speeds, control oxygen flow rate, switch on/off ROE system (10), etc. One of the unique features of the indoor unit (12) may be the provision of the air direction valve, that allows a user to direct the oxygen flow either through the exhaust manifold or through the nozzle (72). The oxygen when released inside the room (16) through the exhaust manifold (90), gets dispersed in the room (16) and provide therapeutic benefits over a longer duration of let's say 4-8 hrs. Alternatively, the oxygen supply through the Nozzle (72) can be connected to an oxygen breathing mask to provide concentrated pure oxygen to users for immediate therapeutic purposes - reducing stress, increasing energy and alertness, lessening the effects of headaches, pre-workout body charging, or for other medical requirements, etc.

The indoor unit (12) efficiently disperses the oxygen, supplied from the outdoor unit (14), inside the room (16) and purifies the room air by sucking it and passing it through a series of filters. It allows occupants of the room (16) to breathe oxygen rich air while not being forced to sit close to the indoor unit (12).

In an embodiment, as shown in Figure 6, the indoor unit (12) of room oxygen enhancer with air purification system of the present invention has the humidifier (74) device which sprays fine water mist inside the room (16) via the Exhaust manifold (90). The humified oxygen rich purified air may be soothing in cold and dry climates.

In the embodiment as shown in FIG. 6, the indoor unit (12) of ROE system (10) in accordance with the present disclosure may have one or more HEPA filters (82) for purification of room air. The HEPA (High Efficiency Particulate Arrestor) filter efficiently filters PM 2.5 particulates. Further different filters having different filtration properties can be used for purifying and disinfecting the air. For example, a fine mesh filter can be used for trapping large dust particles, a carbon filter (38) can be used for absorbing organic impurities such as volatile organic compounds, and UV radiation or Ozonisation to deactivate harmful micro-organisms in the air can be used. In an embodiment, as shown in FIG. 6, the indoor unit (12) of ROE system (10) of the present disclosure may have a fragrance release mechanism (92), which mixes a desired fragrance and oxygen or air released through the exhaust manifold (90) of the indoor unit (12). The addition of fragrance may make the ambient air inside the room (16) odour free and pleasant for a user.

As shown in FIG. 7 and FIG. 8, the control panel (88) and the display panel, respectively, allow the user to set various settings of the ROE system as well view important operating parameters of the ROE system (10) as well.

As shown in Figure 7, the control panel and the display panel (86) may be configured to provide the following functionalities:

Set auto-start based on room air quality and room oxygen level

- Set auto-off based on room air quality and room oxygen level

Adjust fan speed

Set pre-set time for auto switch on or time duration for delayed start Set pre-set time for auto switch off or time duration for delayed stop Adjust flow rate of oxygen into the indoor unit (12) from outdoor unit (14) - Calibrate air quality and oxygen level sensors (76)

Power on/off for indoor and outdoor unit (14)

Reset counter for filter life

- Child lock

Toggle oxygen flow between Exhaust manifold (90) and Nozzle (72) As shown in Figure 8, the display panel (86) may be configured to show operating parameters like:

Air quality inside room (16)

Oxygen level inside room (16)

Flow-rate of oxygen from outdoor unit (14) to indoor unit (12)

- Operating status of outdoor unit (14) and indoor unit (12)

- Clock

Actual time or time remaining for delayed start Actual time or time remaining for delayed stop

Remaining filter life

Figure 9, illustrates the design of a remote controller (94) for the ROE system (10). A set of the display panel (86) and the control panel (88) may be combined together in the remote controller (94) as shown. Further, the remote controller (94) may be configured to communicating wirelessly with the indoor ECU (84) for operation of the ROE system (10). This gives the freedom to the user to operate the ROE system (10) from anywhere in the room (16).

Further, the ROE system (10) may be provided with various safety features built into the ROE system (10). The indoor ECU (84) and the outdoor ECU (40) may be configured with required additional sensors or other components as required for various safety measures.

For example, as shown in FIG. 3, the pressure sensor connected to the reservoir (36) monitors the pressure of oxygen stored in the reservoir (36). The pressure sensor (46) and the outdoor ECU (40) may be configured such that whenever the reservoir is full of oxygen, the outdoor ECU (40) shuts down the outdoor unit (14). Having this configuration also ensures that if the pipe carrying oxygen from outdoor unit (14) to the indoor unit (12) is blocked, the reservoir (36) will get full and outdoor unit (14) will eventually shut down in interest of safety.

Further, the outdoor unit (14) may be provided with sensors to monitor the operating temperature of the compressor (26), the pressure of compressed air released from the compressor (26), operating pressure of the oxygen separator and the operating temperature of the heat exchanger. Any abnormal increase/decrease in the parameters may be detected by the sensor and the corresponding signal may be used to trigger an automatic shutdown of the outdoor unit (14) to prevent any hazards or accidents. Oxygen, which otherwise constitutes only 21% of atmospheric air, may substantially increase inside the room (16) by use of the ROE system (10) of the present disclosure. Although moderately increased oxygen levels, let's say up to 28% of atmospheric air, do have therapeutic benefits, however, extremely high levels of oxygen may not be desirous. Hence, the indoor ECU (84) of the indoor unit (12) may be configured to continuously monitor the oxygen level inside the room (16) by the oxygen level sensor and shut down the indoor unit (12) and the outdoor unit (14) as soon as the oxygen level inside the room (16) reaches the maximum set level of say 28%.

In another embodiment, the communication between the indoor ECU (84) and outdoor ECU can happen over a physical control wire or wirelessly using standard wireless protocols like Bluetooth, Zigbee, sub-Ghz RF, Wi-Fi, etc. This may help in eliminating unnecessary wiring between the indoor unit (12) and the outdoor unit (14).

Further, in an embodiment, the ROE system as disclosed herein may be incorporated in a vehicle such as an ambulance, bus or an aerial vehicle. In an ambulance, the patient is often required to be supplied with an oxygen for treatment. The ROE system of present disclosure can be effectively utilized for providing a conducive atmosphere for a patient inside a moving vehicle. Further, the ROE system can be incorporated in driver cabins of long distance vehicle such as buses or trains to keep the driver alert and attentive while driving. This may help in preventing accidents on roads due to driver inattentiveness.

Further, the configuration of the ROE system (10) as disclosed herein can be very conducive for incorporation in a vehicle. Major bulky and noise producing components such as oxygen separator, compressor, heat exchanger etc. are placed in an outdoor unit which can be placed outside the cabin in spaces such as engine compartment. Therefore, minimal installation is required at the indoor unit, which may enable a compact assembly of the indoor unit in a vehicle. Accordingly, the ROE system (10) in accordance with present disclosure is very effective and easy to use and control for a user. Further, the ROE system (10) in accordance with the present disclosure may provide for a very relaxing and rejuvenating atmosphere for a person. In addition, since most of the noise producing components may be installed separately in the outdoor unit (14) outside the room (16), the noise in the room (16) may be substantially mitigated and a pleasant and silent atmosphere may be provided for a soothing and relaxing experience to a user. Further, the ROE system (10) as disclosed herein also provides for air purification. As discussed air is purified at several stages and also by the indoor unit for providing purified and clean air for a user.

List of Reference Numerals

Room oxygen enhancer (ROE) system (10) Indoor unit (12)

Outdoor unit (14)

Room (16)

Wall (18)

Cables or conduits (20)

Aii- inlet (22)

Air filter (24)

Compressor (26)

Heat exchanger (28)

Separator chamber (30)

Silica gel chamber (32)

Oxygen separator (34)

Reservoir (36)

Carbon filter (38)

Outdoor ECU (40)

Non return valve (42)

Exhaust outlet (44)

Pressure sensor (46)

Housing (48)

Fan inlet (50)

Fan outlet (52)

Access door (54)

Intake vents (56)

Oxygen port (58)

Data port (60)

Power socket (62)

Drain channel (64)

Oxygen inlet (66)

Air flow controller (68)

Air direction valve (70) Nozzle (72)

Humidifier (74)

Oxygen level sensor (76) Room air inlet (77)

Air quality sensor (78)

Suction fan (80)

HEP A filter (82)

Indoor ECU (84)

Display panel (86)

Control panel (88)

Exhaust manifold (90)

Fragrance release mechanism (92) Remote controller (94)

Claims

THE CLAIMS:

1. A room oxygen enhancer system with air purification for regulating oxygen concentration inside a room (16), comprising:

an outdoor unit (14) having a compressor (26), a heat exchanger (28), a separator chamber (30), a silica gel chamber (32), an oxygen separator (34), a reservoir (36), a carbon filter (38) and an outdoor electronic control unit; and

an indoor unit (12) having an oxygen inlet (66), an Oxygen level sensor (76), an air quality sensor (78), a suction fan (80), a HEPA filter (82), an indoor electronic control unit;

wherein the outdoor unit (14) is configured to generate and supply oxygen to the indoor unit (12) and the indoor unit (12) is configured to filter the air inside the room (16) with the HEPA filter (82) and supply the mixture of the oxygen and air to the room (16).

2. The room oxygen enhancer system as claimed in claim 1, wherein the oxygen level sensor (76) is coupled to the indoor ECU (84) and the indoor ECU (84) is configured to regulate the level of oxygen inside the room (16) based on the input from the oxygen level sensor (76).

3. The room oxygen enhancer system as claimed in claim 1 or claim 2, wherein the outdoor ECU (40) and the indoor ECU (84) are configured to communicate with each other wirelessly.

4. The room oxygen enhancer system as claimed in any of the preceding claims, wherein the indoor unit (12) is provided with a fragrance release mechanism (92) to release a fragrance in the room (16) when the system is in operation.

5. The room oxygen enhancer system as claimed in any of the preceding claims, wherein the system further comprises a control panel (88) configured to take input commands from a user to control different operating parameters of the system and a display panel (86) to display different operating parameters of the system.

The room oxygen enhancer system as claimed in claim 5, wherein the control panel (88) and the display panel (86) are configured to communicate with the indoor ECU (84) wirelessly.

The room oxygen enhancer system as claimed in any of the preceding claims, the system further comprises an air direction valve (70), a nozzle (72) and an exhaust manifold (90), wherein the air direction valve (70) is configured to control supply of oxygen received from the outdoor unit (14) between the nozzle (72) and the exhaust manifold (90).

The room oxygen enhancer system as claimed in any of the preceding claims, wherein the indoor unit (12) further comprises an air flow controller (68) electronically coupled to the indoor ECU (84) to regulate flow of oxygen inside the indoor unit (12).

The room oxygen enhancer system as claimed in any of the preceding claims, wherein the indoor unit (12) further comprises a humidifier (74) to humidify the air released from the indoor unit (12) into the room (16).

The room oxygen enhancer system as claimed in any preceding claims, wherein the indoor unit (12) and the outdoor unit (14) are formed as a single unit to be installed in a wall opening.

A room oxygen enhancer system for regulating oxygen concentration inside a room (16), comprising:

wherein the outdoor unit (14) is configured to generate and supply oxygen to the indoor unit (12) and the indoor unit, the indoor unit having an air direction valve (70), a nozzle (72) and an exhaust manifold (90), wherein the air direction valve (70) is configured to control supply of oxygen between the nozzle (72) and the exhaust manifold (90).

The room oxygen enhancer system as claimed in any preceding claims having application in vehicles, office spaces, hospitals, commercial or residential complexes, schools, and research centres.