Up and down two-way suction type diffuser air sterilization device

Abstract

The present invention discloses an air sterilization device with an upward and downward bidirectional suction type diffuser airflow. The upper and lower bidirectional suction type diffusion airflow air sterilization device of the present invention comprises: first and second auxiliary cases having a tubular shape open in directions facing each other, on the sides having first and second air intake ports for drawing air from the outside, first and second pre-filters installed inside the air intake ports for filtering contaminants in the air, and first and second main filters provided in a form that shields the respective open upper and lower surfaces to remove residual contaminants in the air; and a sterilization water supply module comprising a compressor and a sterilization water tank installed inside the first auxiliary case for supplying sterilization water, and first and second spray nozzles respectively installed on one side of the first and second auxiliary cases in directions facing each other for high-pressure spraying of sterilization water. It comprises: first and second main cases connected to one side of each of the first and second auxiliary cases, providing a space in which sterilized water sprayed from the first and second spray nozzles and clean air passing through the first and second pre-filters are mixed and flow in a direction facing each other while forming a vortex; a connecting case connecting the first and second main cases with a part of its side open; and first and second centrifugal blowers installed vertically inside the connecting case, each performing an air intake action on the internal space of the first and second main cases to generate vortex air mixed with sterilized water and discharge it to the side. The upper and lower bidirectional suction type diffusion air sterilization device according to the present invention, configured as described above, has the advantage of enabling purification by rapidly removing contaminated air through the formation of an airflow throughout the entire room. This is achieved by forming airflows that induce the suction of contaminated indoor air from the upper and lower sections, respectively, and simultaneously discharging mixed sterilized air, which is formed by mixing clean air and atomized sterilizing water, through a discharge case positioned in the center. In other words, the present invention generates mixed sterilized air by spraying sterilized water onto clean air that forms a vortex inside the first and second main cases, and forms an airflow that discharges this air into the room through the side of a centrally positioned discharge case, thereby increasing the diffusion efficiency of the sterilized water in the indoor space. Consequently, effective sterilization of various pathogens, including viruses suspended in the air, is possible. Furthermore, effective removal and disinfection of contaminants such as bacteria or microorganisms attached to the inner walls of the indoor space, various items, fixtures, and the clothing of occupants are possible, thereby making the indoor air quality pleasant and maintaining good habitability.

Description

Technology Field

[0001] The present invention relates to an up-and-down bidirectional suction type diffuse airflow air sterilization device, and more specifically, to an up-and-down bidirectional suction type diffuse airflow air sterilization device that generates sterilized mixed air by mixing clean air filtered from contaminated indoor air with sterilizing water harmless to the human body, and induces this to effectively diffuse the mixed air by forming a constant airflow indoors, thereby enabling the maintenance of a good living environment by improving indoor air quality through sterilization action against viruses and pathogenic bacteria in the air. Background Technology

[0002] Recently, as time spent indoors increases and indoor spaces become increasingly enclosed, interest in indoor air quality is rising.

[0003] The severity of indoor air pollution can increase as the concentration of pollutants increases, whether they are introduced from the outside air into the indoor space or generated internally by the indoor activities of residents. When examining pollutants introduced from the outside air into the indoor space, they include fine dust as well as various air pollutants generated from vehicle operations and industrial sites. When examining pollutants generated within the indoor air itself, it was found that various pollutants are released, primarily from building materials, kitchen heating fuels, the daily activities of residents, and various household items.

[0004] These indoor air pollutants include fine dust and various pollutants introduced from the outside, radon and asbestos generated from building materials, formaldehyde, dust, and volatile organic compounds (VOCs) generated from various household goods, as well as nitrogen dioxide, carbon monoxide, cigarette smoke, and microorganisms. In addition to general indoor pollutants, ammonia and sulfur dioxide are added to rest rooms at various industrial sites. Indoor air pollution can be more severe as the concentration of pollutants introduced from the outside air into the indoor space or generated within the indoor air itself increases. In particular, regarding pollutants generated within the indoor air itself, it was found that various pollutants are released from building materials, kitchen heating fuels, human activities, and various household goods.

[0005] These pollutants are known to cause various diseases, including respiratory diseases, so various technologies have been proposed to improve indoor air quality in order to efficiently remove pollutants and create a pleasant indoor environment, and representative examples include dry and wet air purifiers.

[0006] Dry-type air purifiers draw in contaminated air with a fan and force it through a filter to remove dust and bacteria; they are configured to filter out everything from large particles to fine dust by sequentially arranging filters with different filtration densities.

[0007] Here, the filter is a high-density filter with a dust collection efficiency of 80% to 99.97% for particles of 0.3, and is efficient for collecting small particles. However, as the usage period increases and the amount of dust particles deposited on the filter media increases, the pressure loss increases, causing the airflow to decrease, which reduces the purification capacity of the air purifier. Furthermore, since the filter may become a source of pollution due to contamination, it must be replaced.

[0008] Therefore, there are disadvantages such as high costs resulting from the periodic replacement and disposal of filtration filters, as well as the cause of environmental pollution. Furthermore, while most dry-type air purifiers use both pre-filters and medium-performance filters to extend dust collection capacity and filter lifespan, this entails the inconvenience of having to frequently clean and replace each filter.

[0009] Wet air purifiers remove dust particles by inertial collision, direct absorption, and diffusion through contact between airborne dust particles and liquid droplets or bubbles generated by spraying water into the inhaled air. Compared to dry air purifiers, this method has the advantage of not requiring replacement as it does not use a separate filter. However, it is not widely used due to the drawbacks of low dust collection efficiency for fine dust, such as contamination caused by bacterial growth if the water is not changed frequently and the ability to only process relatively large particles of pollutants.

[0010] Meanwhile, recently, an anion generator has been added to the above-mentioned dry-type air purifier to neutralize positively charged contaminated dust or cations, but the above-mentioned anion generator has the disadvantage of causing harm due to ozone generation when anion is generated.

[0011] In addition, a device has been proposed to achieve sterilization using ultraviolet light by installing an additional ultraviolet (UV) lamp. However, since sterilization and deodorization of contaminants can only be achieved after a certain contact time at a certain distance (e.g., within approximately 20 cm) from the ultraviolet light source, sufficient air must be drawn into the device to obtain an appropriate effect, and the effect is limited depending on the degree of contamination or the lifespan limit of the lamp used as the light source. Furthermore, it has the disadvantage that it cannot remove contaminants attached to the inside of the facility, rather than contaminants suspended in the air.

[0012] In addition, there are air purifiers equipped with ozone generators. Ozone sterilization is effective for removing airborne pollutants and attached pollutants using ozone produced by ionizing air or oxygen, and it is suitable for facilities handling modern consumer products as it leaves no residue. However, aside from the issue of indoor safety when using ozone, there is a lack of supplementary devices for the effective removal of pollutants that frequently occur in the living environment. This is because the standard for general air sterilizers is set at 0.05 ppm or less. According to general knowledge in the field of food science, when the ozone concentration is at least 0.5 ppm, the inactivation rate is over 99.9% within seconds to minutes; therefore, the sterilizing power of ozone or active species at concentrations below this level is inevitably limited.

[0013] As such, in the case of air purifiers using plasma generators, ozone generators, or ultraviolet lamps according to conventional technology, it is necessary to stably maintain sterilization power by considering the attachment and proliferation rate of microorganisms suspended in the air or in facilities where frequent sources of contamination enter. However, in reality, ozone or plasma has a reaction time of less than a few seconds, so they disappear as soon as they are generated. Consequently, there are limitations in increasing the efficiency of removing microorganisms such as airborne bacteria in indoor air, and there is a disadvantage that it is impossible to remove such sources of contamination when they frequently enter and when the incoming microorganisms adhere to the surfaces of facilities, devices, or stored items to become attached bacteria.

[0014] In other words, air purifiers according to conventional technology can only reduce the level of indoor pollution by removing dust or foreign substances through a method of simply drawing in indoor air and filtering out pollutants by passing it through high-density filtering materials such as HEPA filters, and even in the case of air purifiers equipped with plasma generators, ion generators, ultraviolet lamps, and ozone generators, there was a problem in that it was difficult to continuously and effectively sterilize and disinfect pathogenic bacteria such as E. coli and Salmonella, as well as mold and various odor-causing substances attached to indoor walls or items.

[0015] Therefore, there is an urgent need for technology to create a comfortable indoor environment that takes into account the current condition or preferences of occupants.

[0016] In particular, in the case of disinfectant water, spraying it directly onto the human body or onto items can have adverse effects on the human body, and there is the inconvenience of having to use it when there are no occupants due to drawbacks such as skin or clothing getting wet. Additionally, a compressor is used to spray the disinfectant water, and since it must be ejected with high pressure to spray over long distances, a relatively large-capacity compressor must be used. This causes problems due to noise and vibration, and there was also a problem where the disinfectant water could not spread evenly over short distances.

[0017] In addition, conventional sterilization water spraying devices had the problem of low efficiency because the sterilization action was localized due to the simple spraying of sterilization water around the installation site. Prior art literature

[0018] Registered Patent No. 10-2059380 (Dec. 19, 2019) Registered Patent No. 10-2050278 (Nov. 25, 2019) Published Patent No. 10-2020-0001918 (January 7, 2020) The problem to be solved

[0019] The present invention was created to solve the problems of the prior art as described above. The present invention aims to provide an up-and-down, two-way suction type diffuse airflow air sterilization device that can maintain comfortable indoor air quality by ensuring excellent diffusion by mixing sterilized water with filtered clean air to generate sterilized mixed air and diffusing it into the room to form an airflow. This enables sterilization and disinfection of various attached bacteria, including viruses or pathogenic bacteria floating in the air and mold attached to indoor walls or items, throughout the entire room. means of solving the problem

[0020] An upper and lower bidirectional suction type diffusion air sterilization device according to a preferred embodiment of the present invention for realizing the above purpose comprises: first and second auxiliary cases having a tubular shape open in directions facing each other, on the side having first and second air intake ports for drawing air from the outside, first and second pre-filters installed inside the air intake ports for filtering contaminants in the air, and first and second main filters provided in a form that shields the respective open upper and lower surfaces to remove residual contaminants in the air; and a sterilization water supply module comprising a compressor and a sterilization water tank installed inside the first auxiliary case for supplying sterilization water, and first and second spray nozzles respectively installed on one side of the first and second auxiliary cases in directions facing each other for high-pressure spraying of sterilization water. The invention is characterized by comprising: first and second main cases connected to each side of the first and second auxiliary cases, providing a space in which sterilized water sprayed from the first and second spray nozzles and clean air passing through the first and second pre-filters are mixed and flow in a direction facing each other while forming a vortex; a connecting case connecting the first and second main cases with a part of its side open; and first and second centrifugal blowers installed above and below inside the connecting case, each performing an air intake action on the internal space of the first and second main cases to generate vortex air mixed with sterilized water and blowing it out to the side.

[0021] As a preferred feature of the present invention, the first auxiliary case is in the shape of a tubular body with a bottom surface shielded and an air intake port provided on the side, and the top surface forms a space shielded by a secondary filter, and is configured to compress and supply air connected to the first and second spray nozzles via a pipe for pumping sterilized water at high pressure inside, and is equipped with a sterilized water tank in which sterilized water is stored for supplying to the spray nozzles.

[0022] As another preferred feature of the present invention, the controller is configured to include either or both of an operation panel consisting of a button operated by a user and a display for screen display, or a wireless communication module operated by an RF wireless remote control, on one side of the exterior of the main body, and to include a microcomputer that controls the operation of the sterilization water supply module and the air purification module by being circuit-connected to the operation panel. Effects of the invention

[0023] The upper and lower bidirectional suction type diffusion air sterilization device according to the present invention forms an airflow that induces the suction of contaminated indoor air from the upper and lower sides, respectively, and simultaneously discharges the mixed sterilized air, which is formed by mixing clean air and atomized sterilizing water, through a discharge case positioned in the center, thereby having the advantage of enabling purification by rapidly removing contaminated air through the formation of an airflow throughout the entire indoor space.

[0024] In other words, the present invention generates mixed sterilized air by spraying sterilized water onto clean air that forms a vortex inside the first and second main cases, and forms an airflow that discharges this air into the room through the side of a centrally positioned discharge case, thereby increasing the diffusion efficiency of the sterilized water in the indoor space. Consequently, effective sterilization of various pathogens, including viruses suspended in the air, is possible. Furthermore, effective removal and disinfection of contaminants such as bacteria or microorganisms attached to the inner walls of the indoor space, various items, fixtures, and the clothing of occupants are possible, thereby making the indoor air quality pleasant and maintaining good habitability.

[0025] The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, terms and words used in this specification and claims should not be interpreted in their ordinary and dictionary meanings, but should be interpreted in a meaning and concept consistent with the technical spirit of the present invention, based on the principle that the inventor may appropriately define the concept of the terms to best describe his invention. Brief explanation of the drawing

[0026] FIG. 1 is a schematic diagram showing an up-and-down bidirectional suction type diffuser air sterilization device according to the present invention. FIG. 2 is a drawing for explaining the interior of the second auxiliary case of the up-and-down bidirectional suction type diffuser air sterilization device according to the present invention. FIG. 3 is a drawing for explaining the interior of a connecting case in an up-and-down bidirectional suction type diffuser air sterilization device according to the present invention. FIG. 4 is a drawing for explaining the interior of the first auxiliary case in an up-and-down bidirectional suction type diffuser air sterilization device according to the present invention. Specific details for implementing the invention

[0027] Hereinafter, the structure and operation of an embodiment of the present invention will be described in detail with reference to the attached drawings.

[0028] However, the present invention is not intended to be limited to specific disclosed forms and should be understood to include all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention.

[0029] In this application, terms such as "comprising" or "having" are intended to specify the existence of the features, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, steps, actions, components, parts, or combinations thereof. That is, throughout the specification, when a part is described as "comprising" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but rather may include additional components.

[0030] Furthermore, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0031] Herein, repetitive descriptions and specific descriptions of known functions and configurations that could unnecessarily obscure the essence of the invention are omitted to avoid obscuring the essence of the invention.

[0032] The embodiments of the present invention are provided to more fully explain the invention to those with average knowledge in the art. Accordingly, the shapes and sizes of the elements in the drawings may be exaggerated for clearer explanation.

[0033] FIG. 1 is a schematic diagram showing an up-and-down bidirectional suction type diffuser air sterilization device according to the present invention.

[0034] In the drawing, a main body case (10) having a long tubular shape in an overall vertical direction is shown, and the main body (10) is largely composed of first and second auxiliary cases (11, 15) having tubular shapes forming the lower and upper parts of the main body (10), first and second main cases (12, 14) having tubular shapes arranged opposite each side of the first and second auxiliary cases (11, 15), and a discharge case (13) arranged between the first and second main cases (12, 14). A component of a sterilization water supply module (30) is installed in the first auxiliary case (11), and a spray nozzle (31, 32) constituting the sterilization water supply module (30) is supported and installed on each side of the first and second auxiliary cases (11, 14) by a nozzle installation plate (11d, 14b). Inside the discharge case (13), a suction action is performed in the lower and upper directions, respectively. A configuration in which the first and second centrifugal blower fans (21, 22) are installed is illustrated.

[0035] FIG. 2 is a drawing for explaining the interior of the second auxiliary case of the upper and lower bidirectional suction type diffuser air sterilization device according to the present invention.

[0036] The drawing shows a second auxiliary case (15) having a structure in which the upper surface is shielded, a second air intake (15a) is formed on the side, and a second main filter (15c) is installed on the lower surface to form a closed space.

[0037] FIG. 3 is a drawing for explaining the interior of a connecting case in an up-and-down bidirectional suction type diffuser air sterilization device according to the present invention.

[0038] The drawing shows a discharge case (13) equipped with first and second centrifugal blower fans (21, 22) that induce air intake by performing suction action on the upper and lower sides, respectively, and discharge the induced air to the outside through the side.

[0039] FIG. 4 is a drawing for explaining the interior of the first main case in an up-and-down bidirectional suction type diffuser air sterilization device according to the present invention.

[0040] The drawing shows a first auxiliary case (11) having a structure in which the bottom surface is shielded, a first air intake (11a) is formed on the side, and a first main filter (11c) is installed on the top to form a closed space.

[0041] With reference to the drawings above, the configuration of the upper and lower bidirectional suction type diffuser air sterilization device according to the present invention will be described in detail.

[0042] First, the sterilizing water in the present invention utilizes known technology known to be harmless to the human body, and preferably, it is proposed that electrolyzed water containing hypochlorous acid be used. When such electrolyzed water is sprayed indoors, it sterilizes various pathogens and viruses in the air, and also enables the sterilization and disinfection of bacteria, such as mold, that are attached to walls, items, or fixtures indoors.

[0043] The present invention, which uses such electrolyzed water as sterilizing water, is largely composed of a main body (10), an air purification element installed in the main body (10) for filtering contaminants such as foreign substances or suspended matter in the indoor air, and a sterilizing water supply module (30) that performs a sterilization action against bacteria or viruses present in the indoor air.

[0044] The main body (10) is largely composed of a first auxiliary case (11) and a second auxiliary case (15) that are arranged in a corresponding upper and lower configuration, first and second main cases (12, 14) that are arranged on each side of the first auxiliary case (11) and the second auxiliary case (15) to allow the sprayed sterilized water to be mixed and flowed with filtered clean air, and a discharge case (13) that is positioned between the first and second main cases (12, 14) and connects them, and is equipped with first and second centrifugal blower fans (21, 22) that perform a suction action for each of the first and second main cases (12, 14) and perform a blowing action toward the indoor side through the side.

[0045] The first auxiliary case (11) and the second auxiliary case (15) are configured such that first and second air intake ports (11a, 15a) are formed on the sides for drawing in air from the outside, and first and second pre-filters (11b, 15b) are installed inside the first and second air intake ports (11a, 15a) to filter out contaminants in the air.

[0046] In addition, the first auxiliary case (11) and the second auxiliary case (15) are configured such that the first and second main filters (11c, 15c) are installed to shield one side of each of the open sides, and it is preferable that the first and second pre-filters (11b, 15b) and the first and second main filters (11c, 15c) are provided to be interchangeable.

[0047] The first and second main cases (12, 14) are elements connected to each side of the first and second auxiliary cases, providing a space in which the sterilized water sprayed from the first and second spray nozzles and the clean air passing through the first and second pre-filters are mixed and flow in a direction facing each other while forming a vortex.

[0048] The discharge case (13) is positioned between the first and second main cases (12, 14) to connect them, and is provided with a structure in which a part of the side is open so that mixed sterilized air is discharged to the outside during the blowing action of the first and second centrifugal blower fans (21, 22) described later.

[0049] The first and second centrifugal blower fans (21, 22) are installed in the upper and lower corresponding positions inside the connecting case (13) and are arranged to perform air intake operations on the internal space of the first and second main cases (12, 14), respectively, and generate vortex air mixed with sterilized water and blow it out to the side.

[0050] Meanwhile, the main body (10) may have a controller configured on one side of the front of the main case (12). The controller is configured to include either or both of the following: an operation panel (not labeled) equipped with a button for receiving operation force from a user and a display indicating the operation status, or a wireless communication module (not shown) that receives operation from an RF wireless remote control (not shown) so that the user can perform wireless operation. It is configured to include a microcomputer (not shown) that controls the operation of the sterilization water supply module and the air purification module by being circuit-connected to the operation panel. In addition, the controller is configured to include a pollution detection sensor capable of wired and wireless communication for detecting indoor air pollution levels in real time, and a control unit that controls the operation of the sterilization water supply module and the air purification module by receiving detection information linked to the pollution detection sensor via wired and wireless communication and comparing it with a preset value. Since such a configuration may be implemented using known technology, a detailed description is omitted.

[0051] The sterilization water supply module (30) is composed of a sterilization water tank (35) installed in the internal space of the first auxiliary case (11) to store sterilization water, a spray nozzle (31, 32) connected to the sterilization water tank (35) by a pipe and fixedly installed on one side of each of the first and second main filters (11c, 15c) by a nozzle housing (11d, 14b) for spraying at high pressure, and a compressor (33) connected to the spray nozzle (31, 32) to supply compressed air for pumping sterilization water at high pressure.

[0052] Here, the compressor (33) and the sterilization water tank (35) are configured to be installed inside the first auxiliary case (11) and are covered by a cover body (37). This is intended to block contact with air entering through the air intake (11a) and to reduce vibration and noise generated by the compressor (33), and the cover body may be equipped with sound-absorbing or sound-insulating material.

[0053] Additionally, the above-mentioned sterilization water tank (35) may be provided in one or more locations that do not interfere with the compressor (33) and are connected to the spray nozzle (31) by a pipe.

[0054] The above spray nozzles (31, 32) may be known nozzles for receiving sterilizing water, such as electrolytic water, and spraying it at high pressure, or ultrasonic oscillators for receiving sterilizing water and atomizing it may be used. In the present invention, as a preferred embodiment, it is proposed that a spray nozzle (31) for spraying sterilizing water in a spray form be used. Meanwhile, the sterilizing water supply module (30) in the present invention may also be configured to include a known electrolytic sterilizing water generator.

[0055] The first and second centrifugal blower fans (21, 22) are installed on each side of the first and second main cases (12, 14) and are elements that apply suction pressure in a clockwise or counterclockwise direction and form a vortex.

[0056] When these first and second centrifugal blower fans (21, 22) receive power and rotate, they apply suction pressure toward the first and second main filters (11c, 15c), and accordingly, external air is drawn into the interior through the air intake provided on the side of the first and second auxiliary cases (11, 15) and then guided into the interior of the first and second main cases via the first and second main filters.

[0057] At this time, the clean air flowing into the interior of the first and second main cases (12, 14) naturally forms a vortex according to the rotation direction of the blades of the centrifugal fan, and when each spray nozzle (31, 32) sprays the sterilizing water in this state, the sterilizing water is uniformly and rapidly diffused into the clean air having a vortex flow. The sterilizing air having a vortex flow in which the sterilizing water has diffused is diffused and discharged into the room through the discharge port formed on the side of the first and second centrifugal blower fans (21, 22).

[0058] Meanwhile, the present invention is not limited to the described embodiments, and it is possible to use it by changing the application area. It is obvious to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Accordingly, such variations or modifications should be considered to fall within the scope of the claims of the present invention. Explanation of the symbols

[0059] 10 : Main body 11,15 : 1st and 2nd auxiliary cases 11a : First air intake 11b,15b : 1st and 2nd prefilters 11c,15c: 1st and 2nd week filters 11d: Lower nozzle mounting plate 12,14 : 1st and 2nd main cases 12b : Nozzle mounting plate 13 : Dispensing case 14b : Upper nozzle mounting plate 21,22 : 1st and 2nd centrifugal fans 30 : Sterilized water supply module 31 : Spray nozzle 33 : Compressor 35 : Sterilized water tank

Claims

Claim 1 First and second auxiliary cases having a tubular shape open in opposing directions, with first and second air intake ports on the sides for drawing in air from the outside, first and second pre-filters installed inside the air intake ports for filtering out contaminants in the air, and first and second main filters provided in a form that shields the respective open upper and lower surfaces to remove residual contaminants in the air; the first auxiliary case has a tubular shape with a shielded bottom surface and air intake ports on the sides, and is equipped with a sterilization water tank for supplying sterilization water and a compressor for supplying compressed air, wherein the compressor and the sterilization water tank are structured to be wrapped by a cover body attached with sound-absorbing or sound-insulating material to block contact with air entering through the first air intake port and to reduce vibration and noise; and first and second spray nozzles installed respectively on one side of the first and second auxiliary cases in opposing directions to spray sterilization water at high pressure. An up-and-down bidirectional suction type diffusion air sterilization device characterized by comprising: a sterilization water supply module; first and second main cases connected to one side of each of the first and second auxiliary cases, providing a space where sterilization water sprayed from the first and second spray nozzles and clean air passing through the first and second pre-filters are mixed and flow in a direction facing each other while forming a vortex; a discharge case connecting the first and second main cases with a part of its side open; first and second centrifugal blowers installed up and down inside the discharge case, each performing an air intake action on the internal space of the first and second main cases to generate vortex air mixed with sterilization water and discharge it to the side; and a controller provided on one side of the outside of the first main case or the second main case to perform user operation and status display and control the operation of the sterilization water supply module and the air purification module. Claim 2 delete Claim 3 delete

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