JP7793142B2 - Air Shower Device - Google Patents

Description

One embodiment of the present invention relates to an air shower device.

In clean rooms, where the number of airborne particles or microorganisms is kept below a certain level, an air shower device is installed at the entrance to the clean room. Anyone entering the room first blows off any particles or microorganisms attached to their clothing in the air shower device before entering the clean room. This maintains the cleanliness of the clean room at a certain level (see, for example, Patent Document 1).

In recent years, in order to prevent the spread of infectious diseases such as influenza or the new coronavirus, air shower devices have increasingly been installed not only in clean rooms but also at entrances to buildings such as homes (see, for example, Patent Document 2).

Japanese Patent Application Laid-Open No. 2007-163108 JP 2019-112813 A

However, from the perspective of preventing the spread of infectious diseases, simply blowing away viruses with an air shower device is not enough. This is because there is a possibility that live viruses may enter the building through the air shower device. Therefore, in order to prevent the spread of infectious diseases, it is necessary not only to blow away viruses with an air shower device, but also to inactivate or kill them.

In view of the above problems, one embodiment of the present invention aims to provide an air shower device that can inactivate or kill viruses.

An air shower device according to one embodiment of the present invention includes a booth with a door on a first side wall through which people can enter and exit, and a blower unit that blows air into the booth. The blower unit includes a first blower fan that operates when people are in the booth, a second blower fan that circulates the air, an air purification filter that purifies the air, and a first light source that irradiates the air purification filter with ultraviolet light.

An air shower device according to one embodiment of the present invention includes a booth with a door on a first side wall through which people can enter and exit; an air blowing unit that blows air into the booth; a first air blowing fan that can switch between a first air volume that operates when people are in the booth and a second air volume that is smaller than the first air volume and that constantly circulates air; an air purification filter that purifies the air; and a first light source that irradiates the air purification filter with ultraviolet light.

The air shower device may further include a second light source that irradiates the interior of the booth, and the second light source may irradiate ultraviolet light having a peak wavelength in the range of 200 nm to 240 nm.

The ultraviolet light from the second light source may be emitted when the first blower fan and the second blower fan are stopped.

Ultraviolet light from the second light source may be emitted when the first airflow rate and the second airflow rate are not operating.

Ultraviolet light from the second light source may be irradiated at least one of when a person enters the room and at a predetermined time after they leave the room.

The predetermined time may be between 0.1 seconds and 900 seconds.

The blower unit may be located above the ceiling of the booth. The blower unit may be located adjacent to a second side wall of the booth that is different from the first side wall.

The air purification filter may be located on the intake side of the first blower fan. The air purification filter may be located on the outlet side of the first blower fan.

The first light source may be located on the inlet side of the air cleaning filter. The first light source may be located on the outlet side of the air cleaning filter.

The ultraviolet light emitted from the first light source may be UV-C.

The air shower device according to one embodiment of the present invention can inactivate or kill viruses attached to people's clothing, etc., thereby preventing the spread of live viruses and the spread of infectious diseases.

1 is a schematic diagram illustrating the appearance of an air shower apparatus according to an embodiment of the present invention. FIG. 1 is a schematic diagram illustrating the inside of an air shower apparatus according to an embodiment of the present invention. FIG. FIG. 2 is a schematic diagram illustrating the configuration of an air blowing unit of the air shower apparatus according to the embodiment of the present invention. 1 is a schematic diagram illustrating the inside of an air shower apparatus according to an embodiment of the present invention. FIG. FIG. 2 is a schematic diagram illustrating the configuration of an air blowing unit of the air shower apparatus according to the embodiment of the present invention. 1 is a schematic diagram illustrating the inside of an air shower apparatus according to an embodiment of the present invention. FIG.

Each embodiment of the present invention will be described below with reference to the drawings. Please note that the embodiments are merely examples, and any variations that a person skilled in the art could easily arrive at by making appropriate modifications while maintaining the spirit of the invention are naturally included within the scope of the present invention. Furthermore, to make the explanation clearer, the drawings may show the width, thickness, or shape of each part more schematically than in the actual embodiment. However, the shapes shown are merely examples and do not limit the interpretation of the present invention.

For the sake of convenience, the terms "above" or "upper" or "below" or "lower" are used in this specification, but these terms merely describe the hierarchical relationship of each component. For example, when a structure is installed, the side on which the structure is normally installed is referred to as "lower" or "lower."

In this specification, the letters "first," "second," or "third" attached to each component are convenient labels used to distinguish between components and have no other meaning unless otherwise specified.

In this specification and drawings, the same reference numeral is used to collectively refer to multiple identical or similar components, and when these multiple components are to be distinguished from one another, they may be written with an uppercase letter. Furthermore, when multiple parts of a single component are to be distinguished from one another, a hyphen and a natural number may be used.

First Embodiment
An air shower device 10 according to one embodiment of the present invention will be described with reference to FIGS. 1 to 3.

Figures 1 and 2 are schematic diagrams illustrating the exterior and interior, respectively, of an air shower apparatus 10 according to one embodiment of the present invention. As shown in Figures 1 and 2, the air shower apparatus 10 includes a booth 100, a blower unit 200, a duct 300, and a control unit 400.

The booth 100 has a box-like shape surrounded by a floor, a ceiling, and four side walls. As shown in FIG. 1, the booth 100 has a door 110 on one of the four side walls (the first side wall) through which people can enter and exit. Therefore, users enter through the door 110, have air blown onto them inside the booth 100, and then exit through the door 110. By blowing air into the booth 100, fine particles or viruses attached to the user's hair, clothing, shoes, etc. can be removed. The door 110 may be translucent so that it can be seen from the outside. For example, an acrylic plate can be used as the door 110.

The two adjacent side walls of the air shower device 10 do not necessarily have to be connected with a corner. The two side walls may be connected continuously while being curved. Therefore, the shape of the booth 100 is not limited to a box shape. The shape of the booth 100 may also be cylindrical or elliptical.

As a modified example of the air shower device 10, doors 110 may be provided on two side walls of the booth 100 (a first side wall and a third side wall facing the first side wall). In this case, users can enter through the door 110 provided on the first side wall and exit through the door 110 provided on the second side wall.

The interior of the booth 100 has space large enough for one person to stay, but is not limited to this. The interior of the booth 100 may have space large enough for multiple people to stay.

As shown in Figure 2, the ceiling of the booth 100 is provided so as to be in communication with the outlet of the air outlet of the air blower unit 200, which will be described later. Air blown from the air blower unit 200 is blown into the booth 100 through the air outlet.

As shown in Figure 2, a grating 120 is provided on the floor of the booth 100. The air blown into the booth 100 from the air blowing unit 200 is discharged through the grating 120 along with any removed particles or viruses.

As shown in FIG. 2, a sensor 130 is installed on the side wall of the booth 100. The sensor 130 can detect people inside the booth 100. For example, an infrared sensor can be used as the sensor 130. Note that the installation location of the sensor 130 is not limited to the side wall. The sensor 130 may also be installed on the ceiling or floor.

The blower unit 200 is disposed above the ceiling of the booth 100. In other words, the blower unit 200 is disposed adjacent to the ceiling of the booth 100. The blower unit 200 can blow air into the booth 100 or circulate air within the booth 100. The configuration of the blower unit 200 will be described in detail below.

Duct 300 is located to the side of the side wall of booth 100. Duct 300 is located adjacent to the side wall of booth 100 and is connected to booth 100 and blower unit 200. Specifically, one end of duct 300 is connected to the space below grating 120, and the other end of duct 300 is connected to the opening of blower unit 200. Duct 300 is a pipe that returns air exhausted from booth 100 to blower unit 200. In other words, air inside booth 100 is exhausted through grating 120 installed on the floor of booth 100 and is supplied again to blower unit 200 through duct 300.

As a variation of the air shower apparatus 10, the air shower apparatus 10 may be configured without the duct 300. In this case, the air shower apparatus 10 is used by connecting it to piping installed in a building, for example. In other words, the air inside the booth 100 is circulated through external piping.

The control unit 400 is a computer capable of performing arithmetic processing using data or information. The control unit 400 includes, for example, a central processing unit (CPU), a microprocessor (MPU), or a random access memory (RAM). Specifically, the control unit 400 executes programs, receives detection signals from the sensor 130, and controls the air blower unit 200. The control unit 400 can be arranged in a control box-like configuration on the ceiling, floor, or sidewall of the booth 100, but is not limited to this.

Figure 3 is a schematic diagram illustrating the configuration of the air blower unit 200 of the air shower apparatus 10 according to one embodiment of the present invention. As shown in Figure 3, the air blower unit 200 includes an air cleaning filter 210, a first light source 220, a first blower fan 230, a second blower fan 240, an air duct 250, an air outlet 260, and an ionizer 270.

The air purification filter 210 contains filter fibers, which can capture fine particles or viruses removed within the booth 100. In other words, the circulating air is purified by passing through the air purification filter 210. For example, a HEPA filter or an ULPA filter can be used as the air purification filter 210. The air purification filter 210 may also be a sterilizing air purification filter in which an enzyme is immobilized on the filter fibers. In this case, viruses captured on the filter fibers are decomposed by the enzyme, thereby killing the viruses. The air purification filter 210 may also be equipped with a photocatalytic panel.

The first light source 220 can irradiate the air purification filter 210 with ultraviolet light. By irradiating the air purification filter 210 with ultraviolet light from the first light source 220, viruses trapped in the filter fibers of the air purification filter 210 can be inactivated. The inactivation of viruses occurs because the viruses are damaged by the ultraviolet light. Furthermore, if a photocatalytic panel is installed on the air purification filter 210, ultraviolet light can also be irradiated onto the photocatalytic panel, activating the photocatalyst and purifying (e.g., deodorizing) the air passing through the air purification filter 210. For example, an ultraviolet LED or the like can be used as the first light source 220.

The ultraviolet light emitted from the first light source 220 is preferably UV-C, with a peak wavelength in the range of 100 nm to 280 nm. Among ultraviolet light types, UV-C is highly effective at inactivating viruses captured in filter fibers. Furthermore, if a photocatalytic panel is installed on the air purification filter 210, the ultraviolet light emitted from the first light source 220 is preferably UV-A, with a peak wavelength in the range of 315 nm to 400 nm. Among ultraviolet light types, UV-A is highly effective at activating photocatalysts.

The first light source 220 may include at least one of an ultraviolet LED that irradiates UV-C and an ultraviolet LED that irradiates UV-A, and may include both an ultraviolet LED that irradiates UV-C and an ultraviolet LED that irradiates UV-A. If the first light source 220 includes both an ultraviolet LED that irradiates UV-C and an ultraviolet LED that irradiates UV-A, the ultraviolet LED that irradiates UV-C and the ultraviolet LED that irradiates UV-A may be installed in different positions.

The first light source 220 may always irradiate the air purification filter 210 with ultraviolet light, or may be controlled by the control unit 400. For example, the control unit 400 may irradiate the air purification filter 210 with ultraviolet light from the first light source 220 when a person is present in the booth 100. The control unit 400 may also irradiate the air purification filter 210 with ultraviolet light from the first light source 220 when the second blower fan 240 is operating.

The first blower fan 230 operates when a person is present in the booth 100, and can blow a large volume of air into the booth 100. In other words, the first blower fan 230 can circulate air at a volume sufficient to blow away fine particles or viruses attached to the hair, clothing, or shoes of people in the booth 100. The timing and duration of operation of the first blower fan 230 is controlled by the control unit 400.

The second blower fan 240 operates when no one is present in the booth 100, and can circulate air within the booth 100. The second blower fan 240 is smaller than the first blower fan 230, and the air volume of the second blower fan 240 is smaller than the air volume of the first blower fan 230. Therefore, the second blower fan 240 can constantly circulate air within the booth 100. However, the operation of the second blower fan 240 is not limited to this. The second blower fan 240 may be stopped when no one is present in the booth 100, or may be stopped together with the first blower fan 230 when someone is present in the booth 100.

The air duct 250 can blow air purified by the air purification filter 210 into the booth 100. That is, the inlet of the air duct 250 is provided on the outlet side of the first blower fan 230 and the second blower fan 240, and the outlet of the air duct 250 is connected to the outlet 260 that communicates with the booth 100. The air blown out from the first blower fan 230 or the second blower fan 240 passes through the air duct 250 and is blown out from the outlet 260.

The air outlet 260 is connected to the outlet of the air duct 250 and has an opening on the booth 100 side with a diameter smaller than that of the air duct 250. The air that passes through the air duct 250 is constricted by the opening of the air outlet 260 and blown out into the booth 100.

The ionizer 270 is installed near the air outlet 260 and can neutralize the static electricity from the air blown out from the air outlet 260. This allows neutralized air to be blown into the booth 100, preventing the reattachment of fine particles or viruses due to static electricity. The number of ionizers 270 is not particularly limited. It is sufficient that the ionizer 270 is installed near at least one of the multiple air outlets 260.

Here, we will explain the air flow within the blower unit 200. The arrows in Figure 3 indicate the air flow.

Air passing through duct 300 first passes through air purification filter 210. The space on the inlet side of air purification filter 210 is separated from the space on the outlet side, so that the air purified by air purification filter 210 does not mix with the air before purification. In addition, a first light source 220 is positioned on the inlet side of air purification filter 210, and the ultraviolet light emitted from first light source 220 inactivates viruses captured by air purification filter 210. Therefore, the purified air has a reduced amount of live viruses.

The air purification filter 210 is located on the intake side of the first blower fan 230 and the second blower fan 240. Therefore, purified air enters the intake of the first blower fan 230 or the second blower fan 240 and is blown out from the outlet. The air blown out from the outlet of the first blower fan 230 or the second blower fan 240 passes through the air duct 250 and is blown out from the outlet 260 into the booth 100.

As explained above, the air shower device 10 according to one embodiment of the present invention is not only capable of capturing fine particles or viruses, but also of inactivating or killing the captured viruses by irradiating the air purification filter 210 with ultraviolet light from the first light source 220. Therefore, by installing the air shower device 10 at the entrances and exits of a building, it is possible to reduce the number of viruses entering the building and prevent the spread of infectious diseases within the building.

Second Embodiment
An air shower apparatus 10A according to one embodiment of the present invention will be described with reference to Figures 4 and 5. In the following, if the configuration of the air shower apparatus 10A is the same as that of the air shower apparatus 10, the description of the configuration of the air shower apparatus 10A may be omitted.

Figure 4 is a schematic diagram illustrating the interior of an air shower apparatus 10A according to one embodiment of the present invention. As shown in Figure 4, the air shower apparatus 10A includes a booth 100A, a blower unit 200A, a duct 300, and a control unit 400. In the air shower apparatus 10A, the blower unit 200A is located above the ceiling of the booth 100A.

As shown in FIG. 4, an air inlet 140A is provided below the side wall of booth 100A. Air blown into booth 100A from blower unit 200A is discharged from air inlet 140A along with any removed particles or viruses. In other words, air inlet 140A is connected to one end of duct 300. Note that air inlet 140A may be provided with a filter to capture particles larger than those captured by air purification filter 210.

Figure 5 is a schematic diagram illustrating the configuration of the air blower unit 200A of the air shower apparatus 10A according to one embodiment of the present invention. As shown in Figure 5, the air blower unit 200A includes an air cleaning filter 210, a first light source 220, a first blower fan 230, a second blower fan 240, an air outlet 260A, and an ionizer 270.

In the blower unit 200A, an air purification filter 210 and a first light source 220 are arranged on each of the first blower fan 230 and the second blower fan 240.

Here, we will explain the air flow within the blower unit 200A. The arrows in Figure 5 indicate the air flow.

Air passing through duct 300 first passes through the first blower fan 230 or the second blower fan 240. That is, air passing through duct 300 enters through the intake port of the first blower fan 230 or the second blower fan 240 and is blown out through the outlet of the first blower fan 230 or the second blower fan 240.

Air purification filter 210 is located on the outlet side of first blower fan 230 or second blower fan 240, and air blown out from the outlet of first blower fan 230 or second blower fan 240 passes through air purification filter 210. The space on the inlet side of air purification filter 210 is separated from the space on the outlet side, so that the air purified by air purification filter 210 is not mixed with unpurified air. In addition, first light source 220 is located on the outlet side of air purification filter 210, and viruses captured by air purification filter 210 are inactivated by ultraviolet light emitted from first light source 220. Therefore, the purified air contains a reduced amount of live viruses.

Air purified by the air purification filter 210 is blown out into the booth 100A through the air outlet 260A.

As described above, the air shower apparatus 10A according to one embodiment of the present invention can not only capture fine particles or viruses, but also inactivate or kill the captured viruses by irradiating the air cleaning filter 210 with ultraviolet light from the first light source 220. Therefore, by installing the air shower apparatus 10A at the entrances and exits of a building, it is possible to reduce the number of viruses that enter the building and prevent the spread of infectious diseases within the building.
Third Embodiment
An air shower apparatus 10B according to one embodiment of the present invention will be described with reference to Figure 6. In the following, if the configuration of the air shower apparatus 10B is the same as that of the air shower apparatus 10, the description of the configuration of the air shower apparatus 10B may be omitted.

Figure 6 is a schematic diagram illustrating the interior of an air shower apparatus 10B according to one embodiment of the present invention. As shown in Figure 6, the air shower apparatus 10B includes a booth 100B, a blower unit 200B, and a control unit 400. In the air shower apparatus 10B, the blower unit 200B is located adjacent to a second side wall portion different from the first side wall portion on which the door 110 of the booth 100B is provided.

As shown in FIG. 6, the booth 100B is provided with a plurality of second light sources 150B. The second light sources 150B may be provided in the side walls or in the ceiling. Alternatively, the second light sources 150B may be embedded in the side walls or ceiling of the booth 100B.

The second light source 150B can irradiate ultraviolet light toward people inside the booth 100B. By irradiating ultraviolet light from the second light source 150B toward people, viruses attached to the person's clothing or blown off the person's clothing can be inactivated. The ultraviolet light irradiated from the second light source 150B preferably has a peak wavelength in the range of 200 nm to 240 nm. Ultraviolet light with a peak wavelength in the range of 200 nm to 240 nm is safe for people and can inactivate viruses. For example, an ultraviolet LED can be used as the second light source 150B.

The second light source 150B can irradiate the interior of the booth 100B with ultraviolet light even when no one is inside the booth 100B. For example, after a person leaves the booth 100B, the second light source 150B can irradiate the interior of the booth 100B with ultraviolet light for a predetermined period of time. This makes it possible to inactivate viruses remaining in the booth 100B even after the person has left the booth 100B. The predetermined period of time is between 0.1 and 900 seconds, and preferably between 0.1 and 180 seconds. Irradiating ultraviolet light for this period of time is sufficient to inactivate viruses.

Also, as shown in FIG. 6, the blower unit 200B includes an air purification filter 210, a first light source 220, a first blower fan 230B, an air outlet 260B, and an ionizer 270.

The first blower fan 230B includes a pole-change motor, allowing the fan rotation speed to be adjusted. In other words, the first blower fan 230B can adjust the air volume. Therefore, the first blower fan 230B can increase the air volume when a person is present in the booth 100B, and decrease the air volume when no person is present in the booth 100B. In other words, when a person is present in the booth 100B, the first blower fan 230B operates at a first air volume that blows away fine particles and viruses attached to the person, while normally circulating air at a second air volume that is lower than the first air volume. Note that adjustment of the air volume of the first blower fan 230B may be controlled by the control unit 400.

As described above, the second light source 150B can irradiate ultraviolet light onto people inside the booth 100B, but the second light source 150B may irradiate ultraviolet light after a person enters the booth 100B and before the first blower fan 230B operates at the first airflow rate. In other words, the second light source 150B may irradiate ultraviolet light while operating at the second airflow rate.

Note that the operation of the first blower fan 230B is not limited to the above. The first blower fan 230B may be stopped when no one is in the booth 100B, or when a person is in the booth 100B. For example, if a person is in the booth 100B, the first blower fan 230B may be stopped when ultraviolet light is being irradiated from the second light source 150B toward the person.

Air outlet 260B is provided in the ceiling or side wall of booth 100. Air inlet 140B is provided in the floor of booth 100B. In addition, air inlet 140B is provided below or at the bottom of the second side wall of booth 100B. Air blown from blower unit 200B is blown into booth 100B through air outlet 260B and is discharged from air inlet 140B together with the removed fine particles or viruses. Air inlet 140B may be connected directly to blower unit 200B or may be connected via a duct.

Here, we will explain the air flow within the blower unit 200B. The arrows in Figure 6 indicate the air flow.

Air discharged from air inlet 140B in the floor passes through an opening in the side wall, merges with air discharged from air inlet 140B in the side wall, and passes through first blower fan 230B. That is, air discharged from air inlet 140B enters the intake port of first blower fan 230B and is blown out from the outlet of first blower fan 230B.

Air purification filter 210 is located on the outlet side of first blower fan 230B, and air blown out from the outlet of first blower fan 230B passes through air purification filter 210. The space on the inlet side of air purification filter 210 is separated from the space on the outlet side, so that the air purified by air purification filter 210 does not mix with the air before purification. In addition, first light source 220 is located on the outlet side of air purification filter 210, and viruses captured by air purification filter 210 are inactivated by ultraviolet light emitted from first light source 220. Therefore, the purified air has a reduced amount of live viruses.

Air purified by the air purification filter 210 is blown out into the booth 100B through the air outlet 260B.

As explained above, the air shower apparatus 10B according to one embodiment of the present invention is not only capable of capturing fine particles or viruses, but also of inactivating or killing the captured viruses by irradiating the air purification filter 210 with ultraviolet light from the first light source 220. Furthermore, by irradiating the person in the booth 100B with ultraviolet light from the second light source 150B, the air shower apparatus 10B can inactivate viruses that are attached to the person's clothing or that have been blown off the person's clothing. Therefore, by installing the air shower apparatus 10B at the entrances and exits of a building, it is possible to reduce the number of viruses that enter the building and prevent the spread of infectious diseases within the building.

Embodiments of the present invention can be implemented by combining appropriate configurations as long as they are not mutually inconsistent. For example, the second light source 150B described in the third embodiment may be installed in the air shower apparatus 10 according to the first embodiment or the air shower apparatus 10A according to the second embodiment. In this case, the second blower fan 240 may be stopped for a predetermined time while a person is inside the booth 100 or booth 100A. Specifically, when ultraviolet light is being emitted from the second light source 150B, the second blower fan 240 may be stopped together with the first blower fan 230. In this case, air is not circulated inside the booth 100 or booth 100A, preventing the dispersion of fine particles or viruses attached to people's clothing, etc., and effectively inactivating viruses with the ultraviolet light emitted from the second light source 150B.

Furthermore, products in which a person skilled in the art appropriately adds or deletes components or modifies designs based on the embodiments, or adds or omits processes or modifies conditions, are also included within the scope of the present invention, as long as they maintain the essence of the present invention.

Even if there are other effects and advantages different from those provided by the above-described embodiments, if they are clear from the description in this specification or can be easily predicted by a person skilled in the art, they are naturally considered to be provided by the present invention.

10, 10A, 10B: Air shower device, 100, 100A, 100B: Booth, 110: Door, 120: Grating, 130: Sensor, 140A, 140B: Air inlet, 150B: Second light source, 200, 200A, 200B: Air blower unit, 210: Air cleaning filter, 220: First light source, 230, 230B: First air blower fan, 240: Second air blower fan, 250: Air duct, 260, 260A, 260B: Air outlet, 270: Ionizer

Claims (12)

a booth including a door on the first side wall portion through which people can enter and exit;
a blowing unit that blows air into the booth,
The blower unit is
a first blower fan that operates when the person is in the booth;
a second blower fan that is smaller than the first blower fan and circulates the air;
an air cleaning filter that purifies the air;
a first light source that irradiates the air cleaning filter with ultraviolet light;
an air outlet provided in a ceiling portion of the booth, which blows the air blown out from the first blower fan and the second blower fan into the booth ;
the air cleaning filter is disposed below the first blower fan and on the side of an intake port of the first blower fan,
The air shower device , wherein the air outlet is located below the air cleaning filter . Further, a second light source for illuminating the interior of the booth is included;
2. The air shower apparatus according to claim 1, wherein the second light source irradiates ultraviolet light having a peak wavelength in the range of 200 nm to 240 nm. The air shower apparatus of claim 2, wherein the ultraviolet light from the second light source is emitted when the first blower fan and the second blower fan are stopped. a booth including a door on the first side wall portion through which people can enter and exit;
a blowing unit that blows air into the booth,
The blower unit is
a first blower fan that is switchable between a first air volume that operates when the person is in the booth and a second air volume that is smaller than the first air volume and that constantly circulates air;
an air cleaning filter that purifies the air;
a first light source that irradiates the air cleaning filter with ultraviolet light;
an air outlet provided in a ceiling portion of the booth, which blows the air blown out from the first blower fan into the booth;
an ionizer provided in the vicinity of the air outlet ,
the air cleaning filter is disposed below the first blower fan and on the side of an intake port of the first blower fan,
The air shower device , wherein the air outlet is located below the air cleaning filter . Further, a second light source for illuminating the interior of the booth is included;
5. The air shower apparatus according to claim 4, wherein the second light source irradiates ultraviolet light having a peak wavelength in the range of 200 nm to 240 nm. The air shower apparatus of claim 5, wherein the ultraviolet light from the second light source is emitted when the first airflow rate and the second airflow rate are not operating. An air shower device according to claim 2 or claim 5, wherein the ultraviolet light from the second light source is emitted at least one of when the person enters the room and at a predetermined time after the person leaves the room. The air shower device of claim 7, wherein the predetermined time is between 0.1 seconds and 900 seconds. An air shower apparatus according to any one of claims 1 to 8, wherein the first blower fan of the blower unit is disposed above the ceiling of the booth. 10. The air shower apparatus according to claim 1, wherein the first light source is disposed on an inlet side of the air cleaning filter. 10. The air shower apparatus according to claim 1, wherein the first light source is disposed on an outlet side of the air cleaning filter. 12. The air shower apparatus according to claim 1, wherein the ultraviolet light emitted from the first light source is UV-C.