KR20220019121A - UVC sanitizing device - Google Patents

Abstract

Provided by the present invention is a UVC sterilization/disinfection device. The UVC sterilization/disinfection device irradiates a hand, an object touched by a hand, and surrounding air evenly with UVC in a contactless manner with the intensity and time that meet a threshold limit value (TLV: an exposure value regulated by an international organization for UVC) so as to achieve safe and high sterilization and disinfection effect. To this end, the UVC sterilization/disinfection device (100) is characterized by comprising: a housing (110) with an inlet port (111) which is formed in the front surface therefor and through which a hand or an object enters and air passing holes (112) formed in opposite sides thereof; a housing entry detection sensor (120) installed inside the housing (110) and configured to detect whether a hand or an object enters through the inlet port (111) of the housing (110); an air fan (130) installed inside the housing (110) and operated such that external surrounding air sucks in through the air passing hole (112) in one side, passes therethrough and is discharged through the air passing hole (112) formed in the other side; a UVC sterilization/disinfection unit (140) installed inside the housing (110), and configured to perform sterilization and disinfection by emitting UVC for a set time when the housing entry detection sensor (120) detects the entry of the hand or object or the air fan (130) sucks surrounding air via the air passing hole (112) in the one side; and a control unit which controls the air fan (130) and the UVC sterilization/disinfection unit (140).

Description

UVC sanitizing device

This invention relates to a UVC sterilization and disinfection device, and more specifically, harmful bacteria or viruses to objects such as masks, mobile phones, TV remote controls, small medical tools, glasses, sunglasses, various accessories, and the surrounding air as well as hands. It relates to a UVC sterilization device that irradiates with UVC to prevent the spread of

Human hands are an important medium for disease transmission, and infection caused by bacteria or viruses can lead to not only hands but also tangible objects, so hand washing is an effective means of preventing infection and spread of diseases.

However, conventional hand washing was insufficient as effective disinfection because the hand had to touch the soap dispenser or towel dispenser, which is known to have bacteria on the surface. And while alcohol-based sanitizers clean hands, they aren't always effective.

In addition, even if you wash your hands to prevent infection and spread of disease, bacteria or viruses may still remain on the objects.

And a hand dryer for preventing hand touching the towel dispenser can be effective in cleaning hands, but there is a problem in that it lacks sterilization and spreads contaminated air around the hands.

In other words, when you touch an object with your hand, bacteria or viruses may remain on the object as well as the hand, and the air around the hand or the object touched by the hand may be contaminated.

This invention is to solve the above problem, and not only the hand, but also the objects touched by the hand and the surrounding air do not contact with an intensity and time that meets TLV (Threshold Limit Value, exposure value regulated by international organizations for UVC). It is a task to provide a UVC sterilization and disinfection device that evenly irradiates UVC without irradiating it to bring about a safe and high sterilization and disinfection effect.

In order to solve the above problems, the present invention includes: a housing 110 that forms an inlet and outlet 111 of a hand or object on the front side, and an air passage hole 112 on both sides thereof; a housing interior entry detection sensor 120 installed inside the housing 110 to detect that a hand or object enters the interior through the inlet/outlet 111 of the housing 110; Installed inside the housing 110, the external ambient air is sucked into the air passage hole 112 on one side, passes through the inside, and operates to be discharged into the air passage hole 112 on the other side. fan 130; Installed inside the housing 110, the housing interior entry detection sensor 120 detects that a hand or object enters, or the air fan 130 is installed in the air passage hole ( 112), when the ambient air is sucked, a UVC sterilization unit 140 for sterilizing by irradiating UVC for a set time; and a control unit for controlling the air fan 130 and the UVC sterilization unit 140 .

Preferably, the UVC disinfection unit 140 includes a UVC lamp 141 and a lamp frame 142 in which the UVC lamp 141 is accommodated, and the lamp frame 142 includes the housing ( 110) A plurality of slots are respectively formed in the upper and lower portions of the interior, and the slots are formed to be inclined to the rear side while receiving the UVC lamp 141 to a predetermined depth in the slot, so that the UVC irradiated from the UVC lamp 141 is formed. may be blocked from going out to the inlet/outlet 111 of the housing 110 .

Preferably, a body temperature sensor 150 may be further installed outside the housing 110, and hands may be sterilized after a temperature check before entering the event venue.

Preferably, a fast food self-order kiosk 160 may be further installed outside the housing 110, and hands may be sterilized while a receipt is printed after placing an order at the kiosk.

Preferably, a mesh plate 143 formed with irregularities is positioned on the upper part of the slot of the lamp frame 142 at the lower portion in which the UVC lamp 141 is accommodated in the housing 110, so that the object in contact with the hand is removed. It is possible to spread evenly while minimizing the blocking of UVC irradiated from the UVC lamp 141 by the unevenness while sterilizing and disinfecting smoothly.

Preferably, the housing 110 further includes an inlet/outlet stopper 131 to cover and block the inlet/outlet 111, and to cover and block the inlet/outlet 111 with the inlet/outlet stopper 131, so that the UVC lamp 141 is In addition to the lamp frame 142 accommodated, the air passage hole 112 on one side and the inside and the air passage hole 112 on the other side while further protecting the eyes by blocking UVC from going out to the inlet and outlet 111 By forming a flow path for the surrounding air to stay for a while, it is possible to increase the effect of sterilizing and disinfecting the surrounding air inside the housing 110 .

Preferably, the advertisement information display device 170 is further installed outside the housing 110, and information can be provided in real time while sterilizing and disinfecting hands, objects, and surrounding air or to generate revenue through advertisements. can

According to the UVC sterilization device of this invention having the above solution, by irradiating UVC without contact for an intensity and time that meets the TLV regulation only when a hand or an object enters through the entrance and exit of the housing, it does not penetrate into the skin of the hand. It is safe because there is no harm to the human body, and it can be easily and effectively sterilized by selecting it on hands or objects without being touched by light.

In particular, in the lamp frame installed inside the housing, a slot for accommodating a plurality of UVC lamps up and down is formed inclined toward the rear side, and the UVC lamp is accommodated in the slot at a predetermined depth, thereby preventing UVC from going out of the entrance and exit of the housing. It has the effect of protecting the eyes by preventing light irritation or itching caused by acute eye exposure.

In addition, by locating a mesh plate formed with irregularities on the upper part of the lamp frame slot where the UVC lamp is accommodated inside the housing, objects in contact with hands are placed on the mesh plate to facilitate sterilization and disinfection, There is an effect of minimizing the blocking of UVC irradiated from the lower UVC lamp and spreading it evenly.

In addition, by installing an air fan inside the housing that allows ambient air to pass through, there is an effect of sterilizing the surrounding air contaminated by bacteria or viruses remaining on the hand or the object touched by the hand.

From this, hospitals, fast food restaurants, supermarket/grocery chains, theaters, airports, convenience stores, large factories, banks, large warehouses, buildings, hotels, gyms, restrooms, retail stores, and public spaces that provide clean and safe images there will be an effect.

1 is a view showing the overall UVC sterilization and disinfection apparatus according to an embodiment of the present invention,
2a and 2b are views showing the inside of the UVC sterilization device according to an embodiment of the present invention from both sides,
3 is a view showing when sterilizing hands with a UVC sterilization device according to an embodiment of the present invention;
4 is a view showing when an object is sterilized with a UVC sterilization device according to an embodiment of the present invention;
5 is a view showing a state in which the inlet and outlet plugs are attached to the inlet and outlet when air is sterilized with the UVC sterilization device according to an embodiment of the present invention;
6 is a view showing a state in which a body temperature sensor is installed outside of the UVC sterilization device according to an embodiment of the present invention;
7 is a view showing a state in which a fast food self-order kiosk is installed outside the UVC sterilization and disinfection apparatus according to an embodiment of the present invention;
8 is a view showing a state in which the advertisement information display device is installed outside the UVC sterilization device according to an embodiment of the present invention;
9 to 11 are views showing the results of the sterilization and disinfection test of bacteria with the UVC sterilization device according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings, which is intended to be described in detail so that a person of ordinary skill in the art to which this invention pertains can easily implement, thereby It does not mean that the technical spirit and scope of this invention are limited. And the terms defining the relative positions such as front and rear, left and right, up and down, inside and outside used are based on the accompanying drawings.

1 is a view showing the overall UVC sterilization device according to an embodiment of the present invention, FIGS. 2a and 2b are views showing the inside of the UVC sterilization device according to an embodiment of the present invention from both sides.

UVC sterilization apparatus 100 according to an embodiment of the present invention, as shown in FIGS. 1, 2A and 2B, a housing 110, a housing inside the detection sensor 120, and an air fan 130 And, including a UVC sterilization and disinfection unit 140 and a control unit (not shown) to control, by irradiating hands, objects, and surrounding air with UVC inside the housing 110 to increase the sterilization and disinfection effect evenly and safely let there be

In the UVC sterilization device 100 according to an embodiment of the present invention, 253.7 nm, which is a wavelength with a very strong sterilization power of UVC (ultraviolet-C, short-wavelength ultraviolet), which has the shortest wavelength and high energy among the UV wavelength 100-400 nm range. Apply a UVC lamp to irradiate.

These UVCs are effective when absorbed by the organism, which is absorbed by the thymine layer of the cell's DNA, disrupting the DNA alignment, causing the cell's genetic function to be immediately lost. Helical DNA contains four basic amino acids: adenine, guanine, cytosine, and thymine. Here, UVC penetrates thymine and transforms it into a completely different gene to inhibit protein formation. In this way, by suppressing the function of a cell gene, a substance necessary for cell function, bacteria or viruses cannot function and cannot reproduce.

The UVC sterilization device 100 according to an embodiment of the present invention has a very low output of 2.1 to 3.2 MW to meet the TLV regulation, and automatically turns off within 3 to 5 seconds after putting a hand in the entrance and exit so that it is exposed very briefly. Safety for the human body is secured, and it can be installed in a wall-mounted, desktop-top or free-standing form, depending on the location. UVC kills more than 99% of all kinds of harmful bacteria, so not only hands, but also objects and surrounding air are sterilized and disinfected. This reduces alcohol costs and labor costs and realizes fast ROI.

The housing 110 forms an inlet and outlet 111 to effectively sterilize and disinfect both hands or objects or hands and objects together with UVC irradiation in a state in which hands are put on the front side or objects are placed and hands are released, or objects are held by hands, and the rest is a closed box shape, and synthetic resin material, metal material, etc. can be used, but it is preferable to use one having strong durability against UV rays.

Here, the inlet/outlet 111 effectively and safely sterilizes UVC by inducing the hand to be positioned at the upper and lower center of the housing 110 .

And air passage holes 112 are formed on both sides, and a power on/off switch 113 is mounted on the lower part of one side. A function setting LED 114 that performs an automatic on/off timer that can be set off is mounted, and the accumulated time using the UVC lamp 141 is monitored in the upper left part of the front to display the lamp replacement time, e.g. For example, green is normal, yellow is a lamp replacement warning, and red is provided with a lamp life indicator 115 that displays such as the end of lamp life, and next to it, an air sterilization time setting button 116 for sterilization of ambient air. and an air sterilization button 117.

And, inside the housing 110, two UVC lamps 141 with a wavelength of 253.7 nm, which have the strongest sterilization power, are accommodated in slots of the lamp frame 142 installed at the upper and lower sides, respectively. In the case of hands, the palms and backs of the hands can be sterilized at the same time, objects can be sterilized as a whole, and the surrounding air can be sterilized evenly as a whole.

In addition, it is possible to mount an entrance/exit stopper 131 and a mesh plate 143 to be described later inside, and a body temperature sensor 150 to be described later, a fast food self-order kiosk 160, and an advertisement information display device 170 are installed on the outside. can be

The housing-inside entry detection sensor 120 is installed above and below the inlet/outlet 111 inside the housing 110 , and detects that a hand or small object enters through the inlet/outlet 111 .

When a hand or an object is detected by the entrance detection sensor 120 inside the housing, the UVC lamp 141 of the UVC sterilization unit 140 is automatically turned on and the strongest sterilization wavelength of 253.7 nm is 3-5 More than 99% of instantaneous sterilization and disinfection within seconds and turns off.

The air fan 130 is installed in the air passage hole 112 on one side of the housing 110 to allow the external ambient air to be sucked into the air passage hole 112 on the one side to pass through the inside. Then, the forced air circulation that operates to be discharged through the air passage hole 112 on the other side is made to sterilize and disinfect the surrounding air contaminated by bacteria or viruses remaining on the hand or the object touched by the hand.

An inlet/outlet stopper 131 is installed on the front part of the housing 110 to block and cover the inlet and outlet 111 of the housing 110 so that the air can stay inside for a while by blocking from the outside in the process of sterilizing and sterilizing the surrounding air. do.

The inlet/outlet stopper 131 is, for example, an acrylic stopper that opens or closes while being detachably attached to the inlet/outlet 111, and covers and blocks the inlet/outlet 111 of the housing 110, so that the UVC lamp 141 is In addition to the lamp frame 142 accommodated, the air passage hole 112 on one side and the inside and the air passage hole 112 on the other side protect the eyes one layer by blocking UVC from going out to the inlet and outlet 111 . ) to form a flow path for the surrounding air and serve as a chamber to stay for a while, increasing the air sterilization and disinfection effect inside the housing 110 .

Then, the sterilized clean air is discharged slowly and sterilizes the surrounding air while continuously and repeatedly circulating.

The UVC sterilization/disinfection unit 140 detects that a hand or an object enters the housing inside the housing sensor 120, or the air passage hole on one side of the housing 110 by the air fan 130 112) to sterilize by irradiating UVC for a set time of 3 to 5 seconds when ambient air is sucked into the 112).

Here, the sterilization effect is proportional to the intensity of the UVC lamp 141 or the time it is irradiated to a hand or object, so it can be appropriately adjusted. In this embodiment of the present invention, the UVC lamp ( 141) maintains the off state to ensure safety, and when the housing interior entry detection sensor 120 detects that a hand enters through the entrance/exit 111 of the housing 110, the output is increased to meet the TLV regulation. It is very low at 2.1 to 3.2 MW, and it turns off automatically after 3 to 5 seconds after putting your hand in the entrance and exit so that it is exposed very briefly. In addition, when an appropriate time for sterilizing and sterilizing the hands has elapsed, a notification sound may be used to inform that the hand is removed from the entrance/exit 111 .

In addition, the lamp frame 142 forms a plurality of slots in the upper and lower portions of the housing 110, respectively, while accommodating the UVC lamp 141 to a predetermined depth in the slots, and the slots are inclined to the rear side. Thus, the UVC irradiated from the UVC lamp 141 is blocked from going out to the inlet and outlet 111 of the housing 110 to prevent light irritation or itching caused by acute eye exposure because it is not reflected in the eyes.

In addition, the UVC lamp 141 is protected by locating a mesh plate 143 formed with irregularities at the upper end of the slot of the lamp frame 142 at the lower portion in which the UVC lamp 141 is accommodated in the housing 110 . Irradiate from the UVC lamp 141 by the irregularities while sterilizing and sterilizing smoothly by placing objects that come into contact with the hands, such as masks, mobile phones, TV remote controls, small medical tools, glasses, sunglasses, and various accessories. It spreads evenly while minimizing the blocking of UVC.

The control unit includes the air fan 130 and the UVC sterilization unit 140 according to preset times for automatically turning on and off, preset times for sterilization and disinfection of ambient air and air fan speed, and prior input of information or advertisements. ) to control

The operation process of the UVC sterilization and disinfection apparatus 100 according to an embodiment of the present invention having the above configuration will be described in detail with reference to the accompanying drawings.

3 is a view showing when sterilizing hands with a UVC sterilization device according to an embodiment of the present invention, and FIG. 4 is a view showing when an object is sterilized with a UVC sterilization device according to an embodiment of the present invention 5 is a view showing a state in which the inlet and outlet plugs are attached to the inlet and outlet when air is sterilized with the UVC sterilization device according to an embodiment of the present invention.

In the UVC sterilization and disinfection apparatus 100 according to an embodiment of the present invention, the UVC lamp 141 of the UVC sterilization and disinfection unit 140 always waits in a turned off state to ensure safety in the control unit, The UVC lamp 141 is controlled to be turned on for a set time only when it enters the interior through the inlet and outlet 111 of the housing 110 or when sterilizing and disinfecting the surrounding air.

And as shown in FIG. 3, in the case of sterilizing hands, the control unit spreads fingers and puts both hands inside the housing 110 through the entrance and exit 111. The UVC lamp 141 is controlled to be turned on automatically.

At this time, the control unit controls the UVC sterilization unit 140 to sterilize and sterilize the hands for about 3 to 5 seconds, and countdown “3”, “2”, “1 " is displayed with a beep, and when "0" is reached, the UVC lamp 141 is turned off and controlled to wait.

Afterwards, when the green light is automatically turned on to indicate that sterilization has been completed, the hand is removed from the entry/exit portion 111 of the housing 110 .

In addition, as shown in FIG. 4, in the case of sterilizing and sterilizing objects such as masks, mobile phones, and glasses that come into contact with the hands, for example, on the mesh plate 143 made of metal such as iron, in the control unit, one hand Pick up an object, put it in the housing 110 , operate a countdown, and when “0” is reached, the object is taken out of the housing 110 .

Here, the object may be sterilized in the air sterilization mode, and the air sterilization button 117 is pressed for 5 seconds and the object is placed on the mesh plate 143 inside the housing 110 . The function setting LED 114 displays a countdown for 15 seconds, a beep sounds while disinfecting the object, and is removed when the countdown reaches “0”. And in the case of extending the sterilization time of the object, it can be increased by 15 seconds while pressing the air sterilization button 117.

And as shown in FIG. 5 , when sterilizing the surrounding air, the control unit controls to sterilize the surrounding air while the UVC lamp 141 of the UVC sterilization unit 140 is turned on.

Here, when the air sterilization button 117 is pressed for 5 seconds, all the UVC lamps 141 are turned on, the air fan 130 is controlled to operate, and the inlet and outlet of the housing 110 with the inlet/outlet stopper 131 (111) is closed.

Then, after pressing the air sterilization time setting button 116 for 2 seconds, a desired air sterilization time is set, and after sterilization of the surrounding air for a set time, it is controlled to automatically switch to the hand sterilization mode.

In addition, the speed of the air is controlled to turn off the air fan 130 when the air sterilization button 117 is pressed once at a normal speed, when the button is pressed twice, at medium speed, when the button is pressed 3 times, and at high speed, and when the button 117 is pressed 4 times.

The UVC lamp 141 immediately purifies the surrounding polluted air, and the air fan 130 installed inside the housing 110 sucks the surrounding air and discharges it as clean air, and the inside of the housing 110 . continues to circulate in the

6 is a view showing a state in which a body temperature sensor is installed outside the UVC sterilization device according to an embodiment of the present invention, and FIG. 7 is a fast food self-order kiosk on the outside of the UVC sterilization device according to an embodiment of the present invention. It is a view showing an installed state, and FIG. 8 is a view showing a state in which an advertisement information display device is installed outside the UVC sterilization device according to an embodiment of the present invention.

On the outside of the UVC sterilization and disinfection device 100 according to an embodiment of the present invention, as shown in FIGS. 6 to 8 , a body temperature sensor 150, a fast food self-order kiosk 160, and an advertisement information display device ( 170) can be installed.

And, as shown in FIG. 6 , by the infrared body temperature sensor 150 installed outside the housing 110, the hands are sterilized after a thermal check before entering the event venue.

Also, as shown in FIG. 7 , the fast food self-order kiosk 160 installed outside the housing 110 sterilizes hands while the receipt is printed after placing an order at the kiosk.

In addition, as shown in FIG. 8 , by the advertisement information display device 170 installed outside the housing 110 , the inside of the housing 110 is sterilized and disinfected in real time while sterilizing hands, objects, and surrounding air. LCD screen, LED screen, etc. can be installed or a tablet can be mounted to provide information such as the process of doing business or to generate revenue through advertisements.

In the UVC sterilization and disinfection apparatus 100 according to the embodiment of the present invention, it is possible to secure the safety of the eyes and skin.

First, the UVC lamp 141 is turned off when hands or objects are not disinfected from the eyes, and the UVC lamp 141 is removed from the slot surface of the lamp frame 142 mounted inside the housing 110 . It is accommodated 5 to 10 mm above or below and is inclined to the rear to prevent UVC from coming out of the inlet and outlet. Block them from going outside.

Next, in order to meet the EC and ISO safety guides on the skin, UVC is irradiated within a very short time of 3 to 5 seconds with a very low output of 2.1 to 3.2 MW.

9 to 11 are views showing the results of the sterilization and disinfection test of bacteria with the UVC sterilization and disinfection apparatus according to an embodiment of the present invention.

As a result of requesting a sterilization test that irradiates a very low and safe 3 MW UVC for 3 seconds for a very short time by providing the UVC sterilization and disinfection device 100 according to an embodiment of the present invention to MICROCHEM, a large American bacterial testing laboratory, FIG. In Fig. 10, S. aureus 6538 was sterilized by 99.99%, and in Fig. 10, it is shown that S. entrica ATCC 10708 and K.pneumoniae ATCC BAA-1705 were sterilized by 99.99%.

And as a result of requesting a sterilization test by providing the UVC sterilization and disinfection device 100 according to an embodiment of the present invention to the Korea Chemical Convergence Testing Laboratory (KTR), in FIG. It shows that 99.99% of Escherichia coli and Staphylococcus have been sterilized.

UVC sterilization device 100 according to an embodiment of the present invention can be used to help sterilization and disinfection in health care facilities, food preparation services, hotels, classrooms, homes, etc., as well as being contaminated by a large number of people and limited space In public transportation such as buses, subways, and trains, which are equipped with DC 12V or 24V batteries, it can be used.

The present invention is not limited to the above embodiments, and various modifications are possible within the scope of the invention described in the claims, and such modifications are also included within the scope of the present invention.

100: UVC disinfection device according to an embodiment of the present invention
110: housing
111: entrance and exit
112: air vent
113: power on/off switch
114: function setting LED
115: lamp life indicator
116: Air sterilization time setting button
117: Air sterilization button
120: housing inner entrance detection sensor
130: air fan
131: entrance/exit stopper
140: UVC sterilization disinfection unit
141: UVC lamp
142: lamp frame
143: mesh plate
150: body temperature sensor
160: Fast food self-order kiosk
170: advertisement information display device

Claims (7)

A housing 110 that forms an inlet and outlet 111 of a hand or object on the front side and air passage holes 112 on both sides thereof;
a housing inside entrance detection sensor 120 installed inside the housing 110 to detect that a hand or an object enters the inside through the inlet/outlet 111 of the housing 110;
Installed inside the housing 110, the external ambient air is sucked into the air passage hole 112 on one side, passes through the inside, and operates to be discharged into the air passage hole 112 on the other side. fan 130;
Installed inside the housing 110, the housing interior entry detection sensor 120 detects that a hand or object enters, or the air fan 130 is installed in the air passage hole ( 112), when the ambient air is sucked, a UVC sterilization unit 140 for sterilizing by irradiating UVC for a set time; and,
UVC sterilization and sterilization apparatus 100, characterized in that it includes; a control unit for controlling the air fan 130 and the UVC sterilization unit 140. The method of claim 1,
The UVC disinfection unit 140 is composed of a UVC lamp 141 and a lamp frame 142 in which the UVC lamp 141 is accommodated,
The lamp frame 142 forms a plurality of slots in the upper and lower portions of the housing 110, respectively, while accommodating the UVC lamp 141 to a predetermined depth in the slot and forming the slots to be inclined to the rear. , UVC sterilization device (100), characterized in that the UVC irradiated from the UVC lamp (141) is blocked from going out to the entrance (111) of the housing (110). The method of claim 1,
A body temperature sensor 150 is further installed on the outside of the housing 110,
UVC sterilization device 100, characterized in that the hands are sterilized after a temperature check before entering the venue. The method of claim 1,
A fast food self-order kiosk 160 is further installed on the outside of the housing 110,
UVC sterilization device 100, characterized in that the hand is sterilized while the receipt is printed after ordering at the kiosk. The method of claim 1,
In the housing 110, a mesh plate 143 formed with unevenness is placed on the upper part of the slot of the lamp frame 142 at the lower part in which the UVC lamp 141 is accommodated, and an object in contact with the hand is placed on it to sterilize and disinfect. UVC sterilization and disinfection apparatus 100, characterized in that it spreads evenly while minimizing the UVC irradiated from the UVC lamp 141 by the unevenness while making it smooth. The method of claim 1,
Further comprising an inlet and outlet stopper 131 to cover and block the inlet and outlet 111 of the housing 110,
Covering and blocking the inlet and outlet 111 with the inlet and outlet plug 131, in addition to the lamp frame 142 in which the UVC lamp 141 is accommodated, blocks UVC from going out to the inlet and outlet 111 to further protect the eyes, By forming a flow path of ambient air with the air passage hole 112 on one side and the inside and the air passage hole 112 on the other side to stay for a while, the effect of sterilizing and disinfecting ambient air inside the housing 110 is enhanced. UVC sterilization device 100, characterized in that. 7. The method according to any one of claims 1 to 6,
An advertisement information display device 170 is further installed outside the housing 110,
UVC sterilization device 100, characterized in that it is possible to provide information in real time or generate revenue through advertisements during sterilization of hands, objects, and surrounding air.

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