KR20220009525A - Air purification sterilizer combined use in negative air pressure machine - Google Patents

Abstract

The present invention relates to an air purification sterilizer. More specifically, the present invention relates to an air purification sterilizer having a structure which can also be used as a negative air pressure machine, comprising: a case (10); a main filter unit (20) built in the case (10); an air purification sterilizing unit (50) assembled on an air outlet (19) side; a negative air pressure unit (60); a castor (70) attached to a bottom surface of the case (10); an operation unit (30) including a fan motor (32); a conversion connector (40) installed on the air outlet (19); and an ultraviolet (UV-C) LED disinfection unit (80) installed between a lower side of a HEPA filter (24) and an air inflow window (17). The present invention aims to provide the air purification sterilizer also used as a negative air pressure machine, which is able to the purified air to the indoors for protecting the respiratory organ of a user from fine dust and various harmful minute particles, include a means for preventing the air polluted by viruses from leaking to the outside on a body, and purify and sterilize the air and prevent viruses from being spread at a much lower cost than that of the cases where a negative air pressure machine, air purifier, and air sterilizer are all separately placed.

Description

Air purification sterilizer combined use in negative air pressure machine}

The present invention relates to an air purifying sterilizer, and more particularly, to an air purifying sterilizer having a structure that can also be used as a negative pressure machine.

Except for outdoor activities in daily life, most of the time is indoors. Unlike the outdoors, in that the indoor space is blocked from the outside and has a limited volume, the air is stagnant, and various bacteria and viruses can spread quickly, and large dust to fine dust accumulates. Therefore, since people have to spend most of their time indoors, there is a problem of being exposed to bacteria, viruses, or fine dust or volatile particles for a long time.

In particular, in Korea, due to the rapid increase in fine dust from China due to China's industrial growth, fine dust that exceeds the allowable level flows and accumulates indoors for most of the year. the current situation.

In addition, the coronavirus, which started in Wuhan, China, at the beginning of this year, has spread around the world without a vaccine, causing enormous human and material damage and atrophy of economic and social activities. The spread of the coronavirus is unprecedented in modern society since the second half of the 20th century, when economic activities were closely intertwined around the world.

Also, especially in Korea, the air is polluted with a huge amount of fine dust emitted as a by-product of economic growth due to the increase in population and economic scale and the rapid economic growth and economic activity of neighboring China.

Air pollution caused by fine dust has become severe in recent years, and recently, air purifiers and sterilizers are being distributed in large quantities to each home. In addition, due to the spread of various airborne infectious agents such as coronavirus, air purifiers and sterilizers that purify and sterilize airborne infectious agents are being distributed. A negative pressure is used.

A general air purifier or air sterilizer is a device that sucks in air from the room and purifies it with an internal filter or sterilizes the air using UV rays or negative ions, and then discharges the air back into the room. Therefore, it purifies or sterilizes while circulating the indoor air without changing the indoor air pressure.

On the other hand, the negative pressure device works to purify and discharge virus-infected air and introduces uninfected air into the room. In particular, the negative pressure device filters the air that may or may be contaminated with viruses existing in the room and filters it and discharges it to the outside. Therefore, by maintaining the indoor air in a negative pressure state, the negative pressure device prevents the air polluted with the indoor virus from leaking out without being filtered, and allows the outside air to automatically flow into the room.

That is, an air purifier or an air sterilizer only purifies and sterilizes the indoor air while maintaining the indoor air pressure, whereas the negative pressure device discharges the indoor air to the outside to reduce the indoor air pressure, but the air exhaust is filtered and discharged.

Therefore, an air purifier or an air sterilizer and a negative pressure device are independent mechanical devices whose purpose is clearly distinguished, and it is a reality that has been used for each purpose.

Therefore, medical institutions such as hospitals use air purifiers or air sterilizers on a regular basis to purify and sterilize infectious agents in the air. However, this leads to an increase in cost, and it is difficult to respond immediately in an emergency situation where a negative pressure isolation room needs to be rapidly expanded due to a rapid increase in patients as in this corona crisis.

Accordingly, in the era of the spread of a large-scale infectious virus, in order for a device that can prevent diseases caused by breathing to be widely distributed, it is necessary to have a complex function that can be converted to a negative pressure device in case of emergency with productivity so that the general public can purchase it at a minimum cost. There is a need to develop an air purification and sterilization system that can secure all of them.

Public Utility Model Publication No. 20-2018-0000070 (disclosure date: 2018. 01. 05)

Accordingly, the present invention provides a means of preventing the air contaminated with the virus from leaking to the outside while providing sterilized and purified air to the room so that the respiratory system can be protected from fine dust and various harmful particles. By having it in the body, it is an object of the present invention to provide an air purifier and sterilizer combined with a negative pressure that can achieve both air purification and sterilization and prevention of virus spread at a much lower cost than when a negative pressure and air purifier and sterilizer are separately provided.

The air purifier and sterilizer combined with a negative pressure device according to the present invention for achieving this purpose is made of a rigid material, and an air inlet window through which outside air flows in and an air outlet 19 through which outside air flows out are formed in the case 10; A HEPA filter built into the case 10 and installed at a point communicating with the air inlet window, a main filter unit 20 comprising a clamp for fixing the HEPA filter at the communicating point, and an air outlet 19 side A cover that is assembled to the air outlet 19 and has an air outlet window formed in a predetermined portion for discharging the air received from the air outlet 19 to the outside, an auxiliary filter installed between the air outlet 19 and the air outlet window, and the cover is installed to operate An air purification and sterilization unit 50 comprising a control display 53 manufactured to enable operation selection by touch while displaying the state and fine dust information of the surrounding air, and one end assembled to the air outlet 19 side and an air outlet ( 19), the exhaust duct 61, which is formed to extend the other end from the outside to the outside, has a posture deformable joint, or is made of an elastic material to enable posture change, and the exhaust duct 61 connects the indoor and the outdoor A negative pressure unit 60 comprising a duct support frame provided so that the other end can be fixedly installed at a point, a caster 70 attached to the bottom of the case 10, and an air inlet window and air A movable part 30 including a fan motor 32 installed between the exhaust ports 19 and a kit-shaped member installed at the air outlet 19, according to a change in the posture of the member, the air purification and sterilization unit 50 ) and the negative pressure unit 60 are both composed of a switching connector 40 that is manufactured to be coupled to the air outlet 19 side.

Here, the conversion connector 40 preferably includes a connecting sleeve 41 that is communicatively coupled to the exhaust duct 61, and is extended in a disk shape along the circumference of the connecting sleeve 41 and fastened to the edge of the air outlet 19. joined to the member.

In this case, the switching connector 40 is preferably installed in such a way that the connecting sleeve 41 protrudes toward the exhaust duct 61 when it is coupled to the exhaust duct 61, and the switching connector 40 is used for the air purification and sterilization. When combined with the unit 50 , the connection sleeve 41 is assembled to the case 10 in a form that protrudes toward the inside of the case 10 .

At this time, the auxiliary filter is made of a carbon filter 55, and preferably, the control display 53 is equipped with power operation, normal operation, and sleep operation programs so that the operation selection can be made, and the case (10) is equipped with a sensor module 14 that detects temperature, humidity, carbon dioxide concentration, fine dust, and volatile organic compound concentration (VOC), and the control display 53 is connected to the sensor module 14 by a data cable, The temperature, humidity, carbon dioxide concentration, fine dust, and volatile organic compound concentration (VOC) information sensed by the sensor module 14 is displayed on the control display 53 , so that the operation is performed according to the information displayed on the control display 53 . Choice is possible.

On the other hand, the main filter unit 20 preferably includes a filter base 21 on which the HEPA filter 24 is seated, and a toggle glamp for attaching or separating the filter base 21 from the movable part 30 , When the HEPA filter 24 and the filter base 21 are raised and lowered by the toggle clamp 26, the filter base 21 is fixed to the bottom of the case 10 while penetrating the filter base 21 to guide the vertical elevation. A plurality of load bars 22 and a linear bush 27 surrounding the load bar 22 while being installed on the filter base 21 so that the filter base 21 is guided in a vertical sliding form along the load bar 22 . is prepared In addition, a UV-C LED module capable of killing viruses before air is introduced into the HEPA filter 24 is mounted at the bottom of the filter base 21 for sterilization.

In addition, the exhaust duct 61 having a joint capable of posture deformation is preferably a corrugated pipe.

The air purifying sterilizer combined with a negative pressure according to the present invention can provide purified air indoors so that the respiratory system can be protected from fine dust and various harmful particulates, and also prevent air contaminated with viruses from leaking to the outside. By having these means in one body, there is an effect that both air sterilization and purification and virus spread prevention can be achieved at a much lower cost than when the negative pressure and the air purifying sterilizer are separately provided.

1 is a perspective view of an air purifying sterilizer combined with a negative pressure device according to the present invention;
2 is a front view and a front sectional view of an air purifying sterilizer combined with a negative pressure device according to the present invention;
3 is a perspective view of the air purification and sterilization unit in FIG. 1;
4 is a state diagram of a transition flange in use;
Figure 5 is a perspective perspective view in the negative pressure mode in Figure 4;
Figure 6 is a front view of Figure 5;
7A is a perspective view of the main filter unit;
7B is a front view and a side view of FIG. 7A;

Specific structural or functional descriptions presented in the embodiments of the present invention are only exemplified for the purpose of describing embodiments according to the concept of the present invention, and the embodiments according to the concept of the present invention may be implemented in various forms. In addition, it should not be construed as being limited to the embodiments described herein, and it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 and 5, the air purifying sterilizer combined with a negative pressure according to the present invention includes a case 10, a main filter unit 20, an air purification and sterilization unit 50, and a negative pressure unit 60 and , a caster 70 , a movable part 30 , and a switching connector 40 .

The case 10 is made of a rigid material, as shown in FIG. 1 , and an air inlet window through which outside air flows in and an air outlet 19 through which outside air flows out are formed.

As shown in FIG. 2 , the filter unit is built into the case 10 and includes a HEPA filter installed at a point communicating with the air inlet window, and a clamp for fixing the HEPA filter to the communicating point.

The air purification and sterilization unit 50 is assembled on the side of the air outlet 19, as shown in FIGS. 2 and 4, and an air outlet window for discharging the air received from the air outlet 19 to the outside is formed in a predetermined portion of the cover And, an auxiliary filter installed between the air outlet 19 and the air outlet window, and a control display 53 installed on the cover to display the driving state and fine dust information of the surrounding air while enabling driving selection by touch. is done

The negative pressure unit 60 has one end assembled on the side of the air outlet 19 and the other end is extended from the air outlet 19 to the outside, and has a posture deformable joint or is made of an elastic material to enable posture change. It consists of an exhaust duct 61 that becomes a duct and a duct support frame provided so that the other end can be fixedly installed at a point where the exhaust duct 61 communicates between the indoor and outdoor areas.

The air purification and sterilization unit 50 and the negative pressure unit 60 cannot be installed together at the same time as shown in FIGS. 1 and 5 . This is because the air flow inside the case 10 moves along one path. However, in the air purification and sterilizer according to the present invention, the air purification and sterilization unit 50 and the negative pressure unit 60 share the same movable part 30 and the main filter so that they can be installed alternately and have a structure that can be operated.

As shown in FIG. 2 , the movable part 30 includes a fan motor 32 installed in the case 10 and installed between the air inlet window and the air outlet 19 . More specifically, in the fan motor 32, the space in which the HEPA filter is installed and the space in which the fan motor 32 is installed are divided by an internal partition wall 12 so that only air that has passed through the HEPA filter can be transported. At this time, only the portion where the fan motor 32 and the HEPA filter are connected to each other is installed to communicate with each other.

The caster 70 is installed in the lower part of the case 10 to perform a rolling action that can be easily transported so that the negative pressure air purifier and sterilizer according to the present invention can be freely placed in a desired position. When the negative pressure module is connected to the case 10, since the exhaust duct 61 is connected to a duct support frame that is fixedly installed on an external structure, the movement of the air purifier and sterilizer combined with the negative pressure can be limited only by the caster 70. To solve this problem, as shown in FIG. 5 , the exhaust duct 61 has a posture deformable joint or is made of an elastic material to enable posture change, so that the free movement arrangement due to the caster 70 is ensured do.

The conversion connector 40 is a member installed at the air outlet 19, and in accordance with a change in the posture of the member, both the air purification and sterilization unit 50 and the negative pressure unit 60 can be coupled to the air outlet 19 side. It is a manufactured member.

The conversion connector 40 is a structure that connects the negative pressure unit 60 and the air purification and sterilization unit 50 to share the same case 10, the movable part 30 and the main filter part.

More specifically, the conversion connector 40 includes a connection sleeve 41 that is communicatively coupled with the exhaust duct 61, as shown in FIG. 19) It is joined to the edge with a fastening member.

In particular, the conversion connector 40 is installed in a form in which the connecting sleeve 41 protrudes toward the exhaust duct 61 when it is combined with the exhaust duct 61 , and the conversion connector 40 is connected to the air purification and sterilization unit 50 . When combined with the connection sleeve 41 is assembled to the case 10 in a form that protrudes toward the inside of the case (10).

The conversion connector 40 is disposed in a state in which the conversion connector 40 is coupled to the exhaust duct 61, that is, the negative pressure unit 60, in a form in which the connection sleeve 41 protrudes upward, as shown on the right side of FIG. 4 . In this case, the state in which the switching connector 40 is coupled to the air purification and sterilization unit 50 is switched so that the connection sleeve 41 is directed toward the inside of the case 10, that is, downward as shown on the left side of FIG. This is a case in which the connector 40 is disposed.

As explained in the Background Art section, the air purifying sterilizer only purifies the indoor air, but there is no change in indoor air pressure. discharge

Because their actions are different, there is inevitably a structural difference between a normal air purifying sterilizer and a negative pressure machine.

In the air purifier and sterilizer combined with a negative pressure device according to the present invention, the negative pressure unit 60 that makes the negative pressure and the air purifier and sterilizer act as a negative pressure so that both can be implemented in one device and an air purifier and sterilizer that works as an air purifier and sterilizer ( 50) is implemented in the form of a module, and a conversion connector 40 that changes the structure of the coupling portion so that both the negative pressure unit 60 and the air purification and sterilization unit 50 can be coupled is provided.

On the other hand, the HEPA filter 24 (HEPA, High Efficiency Particulate Air Filter), which forms the main filter, is an air filter that removes dust in the air, and has a collection capacity of 85 to 99.975% or more for 0.3㎛ particles depending on the grade. of filter paper mainly consists of glass fibers with a diameter of 1 to 10 μm or less. In clean rooms such as semiconductors and medical facilities, an Ultra Low Penetration Absolute filter with a particle collection ability of 99.9975% or more is sometimes used. there is not

The auxiliary filter may be formed of a carbon filter 55 according to the embodiment shown in FIG. 2 . The carbon filter 55 may perform a deodorizing function.

In addition, the selectable operation mode in the air purification and sterilization unit 50 may include a power operation, a normal operation, and a sleep operation. In this case, the control display 53 may be loaded with a program selectable for such an operation mode, and when this program is selected on the control display 53 , the output of the fan motor 32 may be determined according to the selected operation mode. In this case, the control display 53 may be a touch panel.

And as shown in FIG. 2 , a sensor module 14 for detecting temperature, humidity, carbon dioxide concentration, fine dust, and volatile organic compound concentration (VOC) may be mounted on the case 10 .

At this time, the control display 53 is connected to the sensor module 14 with a data cable, and the temperature, humidity, carbon dioxide concentration, fine dust, and volatile organic compound concentration (VOC) information sensed by the sensor module 14 is displayed on the control display ( 53), it may be possible to select driving according to the information displayed on the control display 53. That is, when the indoor fine dust concentration or organic compound concentration is higher than the allowable value, a notification may be set to be displayed, and an algorithm for selecting from normal operation to power operation or automatically switching to power operation may be set according to the setting.

In addition, the control display 53 is equipped with a menu from which manual operation and automatic operation can be selected. When automatic operation is selected, the power operation, normal operation, and sleep operation described above are automatically performed according to the environmental conditions detected by the sensor. can be selected as

In addition, the operation method of the air purifying sterilizer combined with a negative pressure device according to the present invention may be changed or there may be a change in the internal configuration depending on the place where it is used. For example, in a laboratory where a lot of volatile organic compounds are used, the output of normal operation may be set higher than that of home use, and an additional filter for purifying volatile organic compounds may be installed.

On the other hand, as shown in FIGS. 7A and 7B , the filter base 21 on which the HEPA filter 24 is seated and the filter base 21 are closely attached to or separated from the movable part 30 in the main filter part 20 . When the HEPA filter 24 and the filter base 21 are raised and lowered by the toggle clamp 26 and the toggle clamp 26, the filter base 21 passes through the filter base 21 so that the filter base 21 is vertically raised and lowered. ) A plurality of load bars 22 fixed to the floor and the filter base 21 are installed on the filter base 21 so that they are guided in a sliding form in the vertical direction along the load bar 22 while the load bar 22 is installed. A surrounding linear bush 27 may be provided.

In addition, the exhaust duct 61 having a joint capable of posture deformation described above may be a corrugated pipe as shown in FIG. 5 . Corrugated pipe may be a normal bellows pipe, in this case, the material constituting the bellows pipe may be adopted in various ways. And, depending on the length of the exhaust duct 61, the material of the corrugated pipe adopted for the cutting duct may also vary.

In addition, as shown in FIGS. 2 and 7B, a deep ultraviolet (UV-C) LED disinfection unit 80 for virus sterilization equipped with a deep ultraviolet (UV-C) LED is installed under the HEPA filter 24 and the air inlet window ( 17), it is possible to sterilize the air inside the case 10 and the HEPA filter 24 by irradiating deep ultraviolet (UV-C) to the main filter unit 20 .

Ultraviolet rays irradiated from general ultraviolet (UV) lamps can generate ozone and can be harmful to the human body, but deep ultraviolet (UV-C) LEDs can be used semi-permanently without generating ozone.

In particular, deep ultraviolet (UV-C) can sterilize more than 99% of the coronavirus, so when applied to quarantine facilities for treatment or diagnosis of the coronavirus, the best safe test and treatment can be achieved, and the spread of the corona virus will be highly blocked. can

It has been known for several decades that UV rays with a wavelength of 254 nm are effective in destroying viruses and bacteria, and UV rays have been used to sterilize facilities and indoors in hospitals and laboratories. However, this wavelength of ultraviolet light cannot be used on humans because it can damage skin and eyes and cause health problems.

On the other hand, in recent research results, it has been found that "a very small spectrum range of ultraviolet radiation that is safe for the human body while having the ability to kill harmful bacteria" is called "far-ultraviolet C wave" among ultraviolet rays, and the wavelength is about 205 to 230 nm. . Since this far-ultraviolet C wave does not reach the cells of the human body, there is no problem even if it is directly irradiated to the eyes or skin.

In the above study, using a lamp that continuously emits low-dose C waves of far ultraviolet rays, we succeeded in sterilizing the new coronavirus (SARS-CoV-2) on the surface of air and objects. , it can destroy pathogens before a person inhales airborne viruses.

In addition, according to a study by the Food Sanitation Engineering Department at Seoul National University, UV-C LEDs were shown to have an excellent effect in killing food poisoning bacteria, which means that the short ultraviolet wavelengths of 200-280 nanometers produced by UV-C LEDs can destroy bacteria. Because it destroys DNA.

Mercury UV lamps were mainly used for conventional food sterilization. In comparison, UV-C LEDs are more environmentally friendly than mercury UV lamps, have less risk of breakage, have a longer lifespan, and are significantly smaller in size. In particular, as the Minamata Treaty, which came into effect in 2014, imposed strong regulations on the use of mercury, it has been in the spotlight as a next-generation sterilization method.

Above all, the advantage of UV-C LED is that it can produce instantaneous sterilization effect. Mercury UV lamps require 2-3 minutes of warm-up time, but UV-C LEDs have an immediate sterilization effect the moment they are turned on. UV-C LED produces a constant effect regardless of whether it is turned on or off. In addition, although the gas of the mercury UV lamp is sensitive to temperature, the UV-C LED is hardly affected by temperature, so it can be used in places with low temperatures such as refrigerators.

Therefore, the UV lamp to which a general quartz tube is applied has an irregular wavelength and can generate ozone, which can be harmful to the human body, and requires a lot of maintenance due to its short life span. Since semi-permanent use is possible, in the present invention, a deep ultraviolet (UV-C) LED disinfection unit 80 is provided between the air inlet window 17 and the HEPA filter 24 so that indoor air passes through the HEPA filter 24 In the process, almost all of the corona virus remaining in the indoor air and the HEPA filter 24 can be sterilized. However, the specific installation position is not necessarily limited to FIG. 2 or FIG. 7B.

The present invention described above is not limited by the above-described embodiments and the accompanying drawings, and it is common in the technical field to which the present invention pertains that various substitutions, modifications and changes can be made within the scope without departing from the technical spirit of the present invention. It will be clear to those who have the knowledge of

10: case 11: control panel
12: internal bulkhead 13: power switch
14: sensor module 15: emergency switch
16: power connector 17: air inlet window
18: front door 19: air outlet
20: main filter unit 21: filter base
22: load bar 23: clamp bracket
24: hepa filter 25: medium filter
26: toggle clamp 27: linear bushing
30: movable part 31: power module
32: fan motor 34: motor cover
40: conversion connector 41: connection sleeve
42: gasket wheel 50: air purification sterilization unit
51: open/close switch 52: air exhaust window
53: control display 54: pre-filter
55: carbon filter 60: sound pressure unit
61: exhaust duct 62: duct support frame
70: caster 80: deep ultraviolet LED disinfection unit

Claims (7)

a case 10 made of a rigid material and having an air inlet window 17 through which outside air flows in and an air outlet 19 through which outside air flows out;
A main filter unit including a HEPA filter 24 built into the case 10 and installed at a point communicating with the air inlet window 17 and a clamp for fixing the HEPA filter 24 to the communicating point. (20) and;
As a unit in the form of a cover assembled to the side of the air outlet 19, an air outlet window 52 for discharging the air received from the air outlet 19 to the outside is formed in a predetermined portion, and the air outlet 19 and the air Air composed of an auxiliary filter installed between the exhaust windows 52, and a control display 53 installed outside the cover type and manufactured so that operation selection is possible by touch while displaying the driving state and fine dust information of the surrounding air. a purification and sterilization unit 50;
One end is assembled to the side of the air outlet 19, the other end is formed to extend from the air outlet 19 to the outside, and the exhaust duct 61 has a posture deformable joint or is made of an elastic material to enable posture change. ) and a negative pressure unit 60 comprising a duct support frame provided so that the other end can be fixedly installed at a point where the exhaust duct 61 communicates between the indoor and outdoor areas;
a caster 70 attached to the bottom surface of the case 10;
a movable part (30) embedded in the case (10) and including a fan motor (32) installed between the air inlet window (17) and the air outlet (19); and,
As a member installed in the air outlet 19, the air purification and sterilization unit 50 and the negative pressure unit 60 are both manufactured to be coupled to the air outlet 19 side according to a change in the posture of the member. 40); an air purifier and sterilizer combined with a negative pressure device. According to claim 1,
The conversion connector 40 includes a connection sleeve 41 that is communicatively coupled to the exhaust duct 61, and is expanded in a disk shape along the circumference of the connection sleeve 41 and joined to the edge of the air outlet 19 with a fastening member. Air purifying sterilizer combined with negative pressure, characterized in that. 3. The method of claim 2,
The conversion connector 40 is installed in a form in which the connecting sleeve 41 protrudes toward the exhaust duct 61 when combined with the exhaust duct 61, and the conversion connector 40 is connected to the air purification and sterilization unit 50 and An air purifying sterilizer combined with a negative pressure device, characterized in that the connection sleeve (41) is assembled to the case (10) in a form that protrudes toward the inside of the case (10) when combined. 4. The method of claim 3,
The auxiliary filter consists of a carbon filter 55 and a pre-filter 54,
Power operation, normal operation, and sleep operation programs are mounted on the control display 53 so that the operation selection can be made,
The case 10 is equipped with a sensor module 14 for detecting temperature, humidity, carbon dioxide concentration, fine dust, and volatile organic compound concentration (VOC),
The control display 53 is connected to the sensor module 14 with a data cable, and the temperature, humidity, carbon dioxide concentration, fine dust, and volatile organic compound concentration (VOC) information sensed by the sensor module 14 is displayed on the control display ( 53) by appearing in
Air purifier and sterilizer combined with negative pressure, characterized in that operation selection is possible according to the information displayed on the control display (53). According to claim 1,
The main filter unit 20 includes a filter base 21 on which the HEPA filter 24 is seated, a toggle glamp for keeping the filter base 21 in close contact with or spaced apart from the movable unit 30 , and a toggle clamp 26 . A plurality of rod bars ( 22) and a linear bush 27 surrounding the load bar 22 while being installed on the filter base 21 so that the filter base 21 is guided in a vertical sliding form along the load bar 22 is provided. Air purifier and sterilizer combined with negative pressure. According to claim 1,
The exhaust duct (61) having a joint capable of posture deformation is a corrugated pipe. According to claim 1,
A deep ultraviolet (UV-C) LED disinfection unit 80 for virus sterilization is installed between the lower portion of the HEPA filter 24 and the air inlet window 17 , and the deep ultraviolet (UV-C) light is applied to the main filter unit 20 . Air purifying sterilizer combined with negative pressure, characterized in that it sterilizes the air inside the case 10 and the HEPA filter 24 by irradiating it.

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