Hydrogen peroxide vapor detoxifying system using honeycomb structure

Abstract

The present disclosure relates to a hydrogen peroxide vapor decomposition and detoxification system including a hydrogen peroxide vapor suction unit which sucks hydrogen peroxide vapor in a target space to be sterilized, a hydrogen peroxide vapor decomposition and detoxification unit which decomposes the sucked hydrogen peroxide vapor, a vapor discharge unit which discharges decomposition products of the hydrogen peroxide vapor, and a control unit which controls an amount of vapor suction of the vapor suction unit, decomposition and detoxification of the hydrogen peroxide vapor decomposition and detoxification unit, and the vapor discharge unit.

Claims

1. A hydrogen peroxide vapor decomposition and detoxification system comprising: a hydrogen peroxide vapor decomposition and detoxification unit which decomposes sucked hydrogen peroxide vapor, the hydrogen peroxide vapor decomposition and detoxification unit including a plurality of hydrogen peroxide vapor suction units which suck the hydrogen peroxide vapor in a target space to be sterilized; a vapor discharge unit which discharges decomposition products of the hydrogen peroxide vapor, the vapor discharge unit including a plurality of discharge openings; and a controller which controls an amount of vapor suction of each hydrogen peroxide vapor suction unit, decomposition and detoxification of the hydrogen peroxide vapor decomposition and detoxification unit, and the vapor discharge unit, wherein each hydrogen peroxide vapor suction unit includes a first decomposition unit in the form of a first honeycomb structure to decompose the hydrogen peroxide vapor, and wherein each first honeycomb structure includes platinum and palladium as a hydrogen peroxide decomposition catalyst.

2. The hydrogen peroxide vapor decomposition and detoxification system according to claim 1, wherein the hydrogen peroxide vapor decomposition and detoxification system further comprises casters to move the hydrogen peroxide vapor decomposition and detoxification system.

3. The hydrogen peroxide vapor decomposition and detoxification system according to claim 2, wherein the casters further comprise an electric-driven device that can operate by a wireless signal.

4. The hydrogen peroxide vapor decomposition and detoxification system according to claim 1, wherein each first honeycomb structure is hermetically fixed to a suction opening formed in a respective one of the vapor suction units.

5. The hydrogen peroxide vapor decomposition and detoxification system according to claim 1, wherein the hydrogen peroxide vapor decomposition and detoxification unit further comprises a heater to heat the vapor decomposed from the first decomposition unit.

6. The hydrogen peroxide vapor decomposition and detoxification system according to claim 5, wherein the heater heats the vapor decomposed from the first decomposition unit in a range of room temperature to 250? C.

7. The hydrogen peroxide vapor decomposition and detoxification system according to claim 6, wherein the hydrogen peroxide vapor decomposition and detoxification unit further comprises a second decomposition unit to decompose the hydrogen peroxide vapor heated from the heater, and wherein the second decomposition unit comprises: a plate hermetically fixed to a housing of the hydrogen peroxide vapor decomposition and detoxification unit and including a plurality of openings; and a plurality of second honeycomb structures, each second honeycomb structure being hermetically fixed to a respective opening of the plate.

8. The hydrogen peroxide vapor decomposition and detoxification system according to claim 7, wherein each second honeycomb structure includes platinum and palladium as a hydrogen peroxide decomposition catalyst.

9. The hydrogen peroxide vapor decomposition and detoxification system according to claim 8, wherein the vapor discharge unit further comprises a fan unit having a fan of which rotation speed can be adjusted by the controller.

10. The hydrogen peroxide vapor decomposition and detoxification system according to claim 9, wherein the vapor discharge unit comprises a cover which covers a top and a plurality of discharge openings formed in a side, and wherein the decomposition products of the hydrogen peroxide vapor are discharged through the side.

11. The hydrogen peroxide vapor decomposition and detoxification system according to claim 9, wherein the hydrogen peroxide vapor decomposition and detoxification system further comprises a sensor to measure a temperature of the heater, a humidity of the target space to be sterilized, and a concentration of hydrogen peroxide vapor included in the target space to be sterilized; and a display to display the temperature of the heater and the fan speed.

12. A hydrogen peroxide vapor decomposition and detoxification system comprising: a hydrogen peroxide vapor decomposition and detoxification unit which decomposes sucked hydrogen peroxide vapor, the hydrogen peroxide vapor decomposition and detoxification unit including a plurality of hydrogen peroxide vapor suction units which suck the hydrogen peroxide vapor in a target space to be sterilized; a vapor discharge unit which discharges decomposition products of the hydrogen peroxide vapor, the vapor discharge unit including a plurality of discharge openings; and a controller which controls an amount of vapor suction of each hydrogen peroxide vapor suction unit, decomposition and detoxification of the hydrogen peroxide vapor decomposition and detoxification unit, and the vapor discharge unit, wherein each hydrogen peroxide vapor suction unit includes a first decomposition unit in the form of a first honeycomb structure to decompose the hydrogen peroxide vapor, and wherein the hydrogen peroxide vapor decomposition and detoxification unit further comprises a heater to heat the vapor decomposed from the first decomposition unit.

13. The hydrogen peroxide vapor decomposition and detoxification system according to claim 12, wherein the heater heats the vapor decomposed from the first decomposition unit in a range of room temperature to 250? C.

14. The hydrogen peroxide vapor decomposition and detoxification system according to claim 12, wherein each first honeycomb structure is hermetically fixed to a suction opening formed in a respective one of the vapor suction units.

15. The hydrogen peroxide vapor decomposition and detoxification system according to claim 12, wherein the hydrogen peroxide vapor decomposition and detoxification unit further comprises a second decomposition unit to decompose the hydrogen peroxide vapor heated from the heater, and wherein the second decomposition unit comprises: a plate hermetically fixed to a housing of the hydrogen peroxide vapor decomposition and detoxification unit and including a plurality of openings; and a plurality of second honeycomb structures, each second honeycomb structure being hermetically fixed to a respective opening of the plate.

16. The hydrogen peroxide vapor decomposition and detoxification system according to claim 15, wherein each second honeycomb structure includes platinum and palladium as a hydrogen peroxide decomposition catalyst.

17. The hydrogen peroxide vapor decomposition and detoxification system according to claim 12, wherein the vapor discharge unit further comprises a fan unit having a fan of which rotation speed can be adjusted by the controller.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a schematic perspective view of a hydrogen peroxide vapor detoxification system according to an embodiment of the present disclosure when viewed from the front side.

(2) FIG. 2 is a schematic perspective of the hydrogen peroxide vapor detoxification system shown in FIG. 1 when viewed from the rear side.

(3) FIG. 3 is a schematic exploded perspective view showing the elements of a hydrogen peroxide vapor detoxification system according to an embodiment of the present disclosure.

(4) FIG. 4 is a cross-sectional perspective view showing the inner part of a hydrogen peroxide vapor detoxification system according to an embodiment of the present disclosure.

(5) FIG. 5 is a schematic perspective view showing a vapor suction unit of a hydrogen peroxide vapor detoxification system according to an embodiment of the present disclosure.

(6) FIG. 6 is a schematic perspective view showing a second decomposition unit of a hydrogen peroxide vapor detoxification system according to an embodiment of the present disclosure.

(7) FIG. 7 is a schematic perspective view showing a heating unit of a hydrogen peroxide vapor detoxification system according to an embodiment of the present disclosure.

(8) FIG. 8 is a schematic conceptual view showing a detoxification process of a hydrogen peroxide vapor detoxification system according to an embodiment of the present disclosure.

(9) FIG. 9 is a schematic diagram showing a program operating a hydrogen peroxide vapor detoxification system according to an embodiment of the present disclosure, displayed on a display unit by a control unit of the system of the present disclosure.

(10) FIG. 10 is a graph showing the extent to which hydrogen peroxide vapor naturally decomposes as a function of time, when hydrogen peroxide vapor in a target space to be sterilized is 250 ppm, without the use of a hydrogen peroxide vapor detoxification system according to an embodiment of the present disclosure.

(11) FIG. 11 is a graph showing hydrogen peroxide decomposition efficiency without or with operation of a heating unit of a hydrogen peroxide vapor decomposition and detoxification system according to an embodiment of the present disclosure.

(12) FIG. 12 is a graph showing decomposition efficiency of hydrogen peroxide vapor when a fan of a hydrogen peroxide vapor decomposition and detoxification system according to an embodiment of the present disclosure operates at 50% and 100% of the maximum speed.

(13) FIG. 13 is a graph showing hydrogen peroxide decomposition efficiency when both a heating unit and a fan of a hydrogen peroxide vapor decomposition and detoxification system according to an embodiment of the present disclosure operate, and the rotation speed of the fan is controlled to 70% of the maximum speed.

(14) FIG. 14 is a schematic diagram of a conventional system for injecting hydrogen peroxide vapor into a target space to be sterilized.

(15) FIG. 15 is block diagram showing a conventional catalytic decomposition method of hydrogen peroxide.

DETAILED DESCRIPTION

(16) Hereinafter, a hydrogen peroxide vapor detoxification system 1 according to an embodiment of the present disclosure will be described through the preferred embodiments of the present disclosure on the basis of the accompanying drawings.

(17) Prior to the description, in many embodiments, the elements having the same configurations will be representatively described in an embodiment using the same reference signs, and in other embodiments, only different elements will be described.

(18) Meanwhile, to clearly describe an operational relationship of the hydrogen peroxide vapor detoxification system 1 according to an embodiment of the present disclosure, a flow of hydrogen peroxide vapor is indicated by an arrow.

(19) Meanwhile, to clearly describe an operational relationship of the hydrogen peroxide vapor decomposition and detoxification system 1 according to an embodiment of the present disclosure, it is divided into each function as shown.

(20) FIG. 1 is a schematic perspective view of the hydrogen peroxide vapor detoxification system 1 according to an embodiment of the present disclosure when viewed from the front side, and FIG. 2 is a schematic perspective of the hydrogen peroxide vapor detoxification system 1 shown in FIG. 1 when viewed from the rear side.

(21) As shown in FIGS. 1 and 2, the hydrogen peroxide vapor decomposition and detoxification system 1 includes a frame 10 including the entire structure, and through this, forms the entire structure.

(22) The hydrogen peroxide vapor decomposition and detoxification system 1 according to an embodiment of the present disclosure is structured such that a hydrogen peroxide vapor suction unit 22 sucks hydrogen peroxide vapor, a vapor decomposition and detoxification unit 20 sucks and decomposes hydrogen peroxide vapor, and the decomposition products of hydrogen peroxide vapor are discharged through a vapor discharge unit 30.

(23) Additionally, casters for movement 12 are installed for movement and space sterilization of the hydrogen peroxide vapor decomposition and detoxification system 1, and the casters for movement have an electric-driven device (not shown) that can operate by a wireless signal, so the entire hydrogen peroxide vapor decomposition and detoxification system 1 can freely move in a target space through control of a wireless signal.

(24) Additionally, the hydrogen peroxide vapor decomposition and detoxification system 1 according to an embodiment of the present disclosure may include a control unit 11 to control an amount of vapor suction of a vapor suction unit 22a, an amount of decomposition and detoxification of the decomposition and detoxification unit 20, and an amount of hydrogen peroxide vapor decomposition products discharged by the vapor discharge unit 30.

(25) Additionally, the control unit 11 can control the temperature of a heating unit 25 as described below, and measure the humidity of the target space to be sterilized and the concentration of hydrogen peroxide vapor in the target space to be sterilized through a sensor 14. Meanwhile, the operation of the entire hydrogen peroxide vapor decomposition and detoxification system 1 can be turned on/off through a power source unit 13 disposed at the lower part of the frame 10.

(26) FIG. 3 is a schematic exploded perspective view showing the elements of the hydrogen peroxide vapor detoxification system 1 according to an embodiment of the present disclosure, and FIG. 4 is a cross-sectional perspective view showing the inner part of the hydrogen peroxide vapor detoxification system according to an embodiment of the present disclosure.

(27) As shown in FIGS. 3 and 4, a housing 21 in which the vapor decomposition and detoxification unit 20 is installed is mounted in the frame 10, and a heating unit 25 is placed below the vapor decomposition and detoxification unit 20. Additionally, the housing 21 includes a first decomposition unit 22 and a second decomposition unit 23, and a fan unit 24 and the vapor discharge unit 30 are disposed above the second decomposition unit 23.

(28) A detailed description of each element will be provided below through illustrations of FIGS. 5 to 8 and the following descriptions.

(29) FIG. 5 is a schematic perspective view showing the vapor suction unit 22 of the hydrogen peroxide vapor detoxification system 1 according to an embodiment of the present disclosure.

(30) As shown in FIGS. 4 and 5, the vapor suction unit 22 is disposed on the side of the lower part of the housing 21, and a first honeycomb structure 22b is hermetically fixed to each of a plurality of suction openings 22a.

(31) The first honeycomb structure 22b is formed with a cylinder shaped catalyst structure, and has a structure in which hydrogen peroxide vapor is sucked, and at the same time, decomposition of hydrogen peroxide is accomplished.

(32) Specifically, the first honeycomb structure 22b maintains its honeycomb shape, and includes hydrogen peroxide vapor decomposition catalysts. Additionally, the first honeycomb structure 22b is a circular cylinder structure, and platinum (Pt) and palladium (Pd) catalysts may be used. And, to increase the decomposition and detoxification efficiency of hydrogen peroxide vapor, a structure including aluminum (Al), silicon (Si) and others and at least one catalyst of iron oxide and nickel oxide may be coated on the structure.

(33) FIG. 6 is a schematic perspective view showing the second decomposition unit 23 of the hydrogen peroxide vapor detoxification system 1 according to an embodiment of the present disclosure.

(34) As shown in FIGS. 4 and 6, the second decomposition unit 23 includes a plate 23a perfectly hermetically fixed to the housing 21 in the radial direction inside the housing 21, and a second honeycomb structure 23b is hermetically fixed to each of a plurality of openings formed in the plate 23a.

(35) Accordingly, secondary decomposition is performed by the second decomposition unit 23 for an extremely small amount of hydrogen peroxide vapor that has not been primarily decomposed by the first decomposition unit 22, achieving very high decomposition efficiency.

(36) Additionally, as described above, because the inside of the housing 21 of the decomposition and detoxification unit 20 is hermetically sealed fully except the second honeycomb structure 23b, the sucked hydrogen peroxide vapor can only move through the second honeycomb structure 23b.

(37) Meanwhile, in the same way as the first honeycomb structure 22b, the second honeycomb structure 23b is also formed with a cylinder shaped catalyst structure, and is structured such that hydrogen peroxide vapor is sucked, and at the same time, decomposition of hydrogen peroxide is accomplished.

(38) That is, the second honeycomb structure 23b maintains its honeycomb shape, and includes hydrogen peroxide vapor decomposition catalysts, the catalysts may include platinum (Pt) and palladium (Pd) catalysts, and to increase the decomposition and detoxification efficiency of hydrogen peroxide vapor, a structure including aluminum (Al), silicon (Si) and others and at least one catalyst of iron oxide and nickel oxide may be coated on the structure.

(39) FIG. 7 is a schematic perspective view showing the heating unit 25 of the hydrogen peroxide vapor detoxification system 1 according to an embodiment of the present disclosure.

(40) As shown in FIGS. 4 and 7, a very small amount of hydrogen peroxide vapor remaining after primary decomposition from the first decomposition unit 22 is heated by the heating unit 25. The heating unit is heated in the range of room temperature to 250? C., and can enhance the decomposition efficiency of a very small amount of hydrogen peroxide vapor by the second decomposition unit 23 as described below.

(41) As shown in FIG. 7, the heating unit 25 heats as an electric heater through electrical connection of an electrical connector 25b, and is designed such that the heated high temperature heat is scanned into a movement passage of the generated high temperature heat in the form of a beam through a heating opening 25a to efficiently decompose hydrogen peroxide vapor. Additionally, the material for the heating unit 25 may include iron plated with zinc and iron and stainless steel.

(42) Meanwhile, as described above, the temperature control of the heating unit 25 can be made through control of the control unit 11, and the heating unit 25 is displayed on a display unit (not shown) to allow a measurer to monitor the temperature of the heating unit 25 of the hydrogen peroxide vapor detoxification system 1 in real time.

(43) FIG. 8 is a schematic conceptual view showing the detoxification process of the hydrogen peroxide vapor detoxification system 1 according to an embodiment of the present disclosure.

(44) As shown in FIG. 8, hydrogen peroxide vapor (Fi) in the target space to be sterilized is primarily decomposed by the first decomposition unit 22. A very small amount of hydrogen peroxide vapor (F.sub.A) remaining in the primarily decomposed decomposition products is heated (H) through the heating unit 25, circulates up, and moves up by a force that sucks a very small amount of hydrogen peroxide vapor (F.sub.A) by operation of the fan 24a of the fan unit 24.

(45) Meanwhile, as the rotation speed of the fan 24a can be adjusted through control of the control unit 11, the operating speed of the fan unit 24 may adjust the movement speed of a very small amount of hydrogen peroxide vapor (F.sub.A) moving up, and the speed of the fan 24a is also displayed on the above-described display unit (not shown) to allow the measurer to monitor the movement speed of a very small amount of hydrogen peroxide vapor (F.sub.A) in real time.

(46) That is, the hydrogen peroxide vapor detoxification system 1 according to an embodiment of the present disclosure may, through the operation of the control unit 11, adjust the speed of the fan 24a to adjust the total amount of hydrogen peroxide vapor, or control the on/off of the heating unit 25, heating and heating temperature, and measure the hydrogen peroxide concentration, indoor temperature and humidity through the sensor 14, and display it on the display unit.

(47) Additionally, the control unit 11 and the display unit (not shown) of the present disclosure can communicate with each other wirelessly, to enable control and operation of the system 1 in places other than the space that needs decomposition and detoxification.

(48) Meanwhile, the moved air is secondarily decomposed by the second decomposition unit 23 as described above, and finally, is discharged (Fo) through a discharge opening 32 formed in a cover 31 of the vapor discharge unit 30.

(49) Meanwhile, as the discharge opening 32 is formed on the side of the cover 31 as shown in FIGS. 4 and 8, the final decomposition products of hydrogen peroxide vapor may be discharged in the lateral direction of the hydrogen peroxide vapor detoxification system 1.

(50) FIG. 9 is a schematic diagram showing the program operating the hydrogen peroxide vapor detoxification system 1 according to an embodiment of the present disclosure, displayed on the display unit by the control unit 11 of the system of the present disclosure, and below is an experiment of the decomposition efficiency of hydrogen peroxide vapor using the hydrogen peroxide vapor decomposition and detoxification system 1 according to an embodiment of the present disclosure.

(51) As comparative example of the experiment, the natural decomposition efficiency without applying the hydrogen peroxide vapor decomposition and detoxification system and the decomposition efficiency of the conventional product are presented.

(52) Additionally, through comparisons of hydrogen peroxide decomposition efficiency when the heating unit 25 for optimization of the performance of the decomposition and detoxification system 1 of the present disclosure is ON/OFF, and depending on the maximum rotation speed of the fan 24a, it is intended to investigate the hydrogen peroxide decomposition efficiency of the present disclosure.

Experiment 1: Measurement of Efficiency of Natural Decomposition of Hydrogen Peroxide Vapor

(53) To test the performance of the vapor decomposition and detoxification system, efficiency of natural decomposition of hydrogen peroxide without using decomposition and detoxification equipment was measured.

(54) First, to compare the hydrogen peroxide decomposition efficiency of each target according to the objective indication, the experiment conditions were presented as shown in Table 1.

(55) TABLE-US-00001 TABLE 1 Operating time and method of hydrogen peroxide vapor sterilization system Volume of space to be 58.65 m.sup.3 sterilized Cycle time Conditioning time 7 mins Gassing time 29 mins Dwell time 20 mins Total time 56 mins Gas injection rate 5 g/min Amount of H.sub.2O.sub.2 used About 150 g

(56) As shown in Table 1, according to the volume of the sterilization space and the operating time and method of the vapor sterilization apparatus, the concentration of hydrogen peroxide vapor in the target space to be sterilized was maintained at about 250 ppm.

(57) Additionally, in addition to the hydrogen peroxide vapor sterilizer, four fans for quick circulation of indoor air and hydrogen peroxide vapor, and a concentration sensor of hydrogen peroxide vapor in the space (ATI hydrogen peroxide gas detector, 2-wire transmitter) and a temperature sensor (VAISALA, HMP 110) are installed in the target space of experiment, and thus the extent of decomposition of hydrogen peroxide can be observed in real time, and equipment wirelessly operates in a place outside of the target space and can collect the experiment result values.

(58) Additionally, the fan's maximum air flow of the exhaust unit is 3,120 m.sup.3/hr, and the power consumption is 250 W.

(59) The operating temperature of the heating plate of the heating unit 25 is 125-250? C., and the power consumption is 1300 W.

(60) Subsequently, the efficiency of natural decomposition of hydrogen peroxide in the target space to be sterilized is shown in FIG. 10.

(61) The period of time from the dwell time t1 to the time t2 at which the hydrogen peroxide concentration is 1 ppm or less, i.e., the time taken to naturally decompose the total amount of hydrogen peroxide vapor, was about 16 hours or longer.

Experiment 2: Hydrogen Peroxide Decomposition Efficiency Depending on ON/OFF of the Heating Unit and the Fan Speed of the Exhaust Unit

(62) To conduct experiment 2, the concentration of hydrogen peroxide vapor in the target space to be sterilized was maintained at about 250 ppm according to the volume of the sterilization space and the operating time and method of the vapor sterilization apparatus as shown in Table 1.

(63) The hydrogen peroxide decomposition efficiency was measured when the heating unit 25 is ON/OFF, and the result values of FIG. 11 could be obtained.

(64) A time difference between t1 and t2 found the decomposition efficiency of about 30 min depending on heating or non-heating of the part where hydrogen peroxide vapor is suck.

(65) Additionally, the hydrogen peroxide decomposition efficiency as a function of the speed of the fan 24a was measured. At the maximum speed corresponding to the fan's maximum air flow of 3,120 m.sup.3/hr and the speed corresponding to its 50%, the hydrogen peroxide vapor decomposition efficiency was measured, and the results are shown in FIG. 12.

(66) It can be seen that initially, at 100% of the fan speed, the hydrogen peroxide decomposition efficiency is about 30 min and is very good.

Experiment 3: Hydrogen Peroxide Decomposition Efficiency of Detoxification System

(67) The hydrogen peroxide decomposition efficiency of hydrogen peroxide vapor in the target space to be sterilized generated under the condition of the above-described Table 1 was measured using the detoxification system 1 of the present disclosure.

(68) Maintaining the temperature of the heating plate of the heating unit 25 at 40? C. and the speed of the fan 24a at the maximum fan speed of 100% is avoided to maintain durability and stability of equipment, and during operation, the maximum speed was maintained at 70%.

(69) Accurate values displayed on the control unit and the display unit were identified, and the hydrogen peroxide decomposition efficiency of the detoxification system of the present disclosure is shown in FIG. 13.

(70) As shown in FIG. 13, the period of time between the hydrogen peroxide vapor decomposition start t1 after the dwell time and the time t2 at which the hydrogen peroxide concentration is 1 ppm or less was measured as about 1 h 10 min or less.

(71) The sterilization method of target fungus to be sterilized in the target space to be sterilized by generating hydrogen peroxide vapor (HPV) basically requires about 50 min to generate active oxygen (oxygen free radical) from hydrogen peroxide molecules, and decompose, sterilize and disinfect many fungus, bacteria, viruses and gemmules, according to Table 1. Subsequently, it takes a minimum of 18 hours or longer to naturally decompose hydrogen peroxide vapor.

(72) Accordingly, to efficiently manage or use the facility, for example, to reuse the space or equipment after sterilization, reducing the hydrogen peroxide decomposition time is the most effective method.

(73) In conclusion, it takes about 1 hour to lower hydrogen peroxide vapor to 1 ppm or less, and it could be seen that the present disclosure is a very excellent invention that can maximize the reuse of space, facility, and equipment.

(74) It will be understood by those having ordinary skill in the technical field pertaining to the invention that the present disclosure may be embodied in any other particular forms without departing from the technical idea or the essential feature of the present disclosure with reference to the foregoing description of the present disclosure.

(75) Therefore, it should be understood that the embodiments described herein are for illustration in all aspects, but not intended to limit the resent disclosure to the disclosed embodiments, and the scope of the present disclosure is defined by the appended claims rather than the foregoing detailed description, and it should be interpreted that all modifications or variations derived from the spirit and scope of the appended claims and the equivalents to which the appended claims are entitled fall within the scope of the present disclosure.

(76) The present disclosure completely decomposes hydrogen peroxide vapor immediately after sterilization of the target space to be sterilized using the hydrogen peroxide vapor decomposition and detoxification system, to remove harm resulting from hydrogen peroxide, and through this, can maximize the use efficiency of the target space to be sterilized, facility and equipment.

(77) TABLE-US-00002 Detailed Description of Main Elements 1: Hydrogen peroxide vapor detoxification system 10: Frame 11: Control unit 12: Caster 13: Power source unit 14: Sensor 20: Decomposition and detoxification unit 21: Housing 22: First decomposition unit 22a: Suction opening 22b: First honeycomb structure 23: Second decomposition unit 23a: Plate 23b: Second honeycomb structure 24: Fan unit 24a: Fan 25: Heating unit 25a: Heating opening 25b: Electrical connector 30: Vapor discharge unit 31: Cover 32: Discharge opening