CN106680438B - Device and method for detecting volatile matters generated by household appliances - Google Patents
Device and method for detecting volatile matters generated by household appliances Download PDFInfo
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- CN106680438B CN106680438B CN201710121121.5A CN201710121121A CN106680438B CN 106680438 B CN106680438 B CN 106680438B CN 201710121121 A CN201710121121 A CN 201710121121A CN 106680438 B CN106680438 B CN 106680438B
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- 238000000034 method Methods 0.000 title claims description 19
- 238000005070 sampling Methods 0.000 claims abstract description 88
- 238000001514 detection method Methods 0.000 claims abstract description 38
- 239000000779 smoke Substances 0.000 claims abstract description 19
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003546 flue gas Substances 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 21
- 239000002245 particle Substances 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 11
- 239000003039 volatile agent Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims 1
- 108010066278 cabin-4 Proteins 0.000 description 35
- 238000004140 cleaning Methods 0.000 description 6
- 230000006698 induction Effects 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000012855 volatile organic compound Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0047—Organic compounds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
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Abstract
The invention discloses a detection device of volatile matters generated by household appliances, which comprises: the sealed cabin with the volume of 10 cubic meters is provided with a cabin inlet, an observation window and an exhaust port; the sealed cabin is also provided with a first sampling port, a second sampling port and a third sampling port, wherein the first sampling port is communicated with the temperature detection device, the second sampling port is communicated with the humidity detection device, and the third sampling port is communicated with the TVOC concentration detection device; a fan is arranged in the sealed cabin, two opposite bulkheads in the sealed cabin are respectively provided with two smoke collection ports, one of the two smoke collection ports of the same bulkhead is positioned at the upper part of the bulkhead, the other is positioned at the lower part of the bulkhead, and the smoke collection ports are respectively communicated with a TVOC concentration detection device; the exhaust port, the first sampling port, the second sampling port, the third sampling port and the flue gas collection port are all provided with gate valves. The invention provides a device for detecting volatile matters generated by a household appliance, which can detect the concentration of the volatile matters generated by the household appliance by operating the device.
Description
Technical Field
The invention relates to a device and a method for detecting volatile matters generated by a household appliance, and belongs to the field of household appliance inspection and detection.
Background
With the continuous deterioration of the environment, the air quality problem is getting more and more important, such as indoor air conditioner, air purifier, etc. all have the effect of improving the air quality. However, TVOC is also generated by many home appliances. Researchers in room air quality typically refer to all of the room organic gaseous materials they sample for analysis as TVOC, which is an abbreviation for the first letter of the Volatile Organic Compound word, and the various VOCs measured are collectively referred to as total volatile organic TVOC (Total Volatile Organic Compounds). The reasons for TVOC generation by household appliances are mainly two: 1. the household appliance can volatilize TVOC from the material, especially the household appliance which can generate heat, and the generated volatile matters are more; 2. household appliances can produce TVOC at the operation in-process, for example, air conditioner, air purifier, and its air-purifying's principle is mostly all filtered the air through the filter screen, separates out impurity that mix with in the air, so, the filter screen plays impurity separation's effect, just also leads to having a large amount of impurity to attach on the filter screen, leads to its also can produce TVOC at the operation in-process. However, there is no method for detecting TVOC generated by a home appliance at present, so that consumers cannot recognize the home appliance from the viewpoint of TVOC generation.
Disclosure of Invention
The invention aims to provide a device for detecting volatile matters generated by a household appliance, which can detect the concentration of TVOC generated by the household appliance by operating the device, so that a consumer can recognize the household appliance from the point of TVOC generation.
In order to solve the technical problems, the invention adopts the following technical scheme:
a device for detecting volatiles generated by a household appliance, comprising: the sealed cabin with the volume of 10 cubic meters is provided with a cabin inlet, an observation window and an exhaust port; the sealed cabin is also provided with a first sampling port, a second sampling port and a third sampling port, wherein the first sampling port is communicated with the temperature detection device, the second sampling port is communicated with the humidity detection device, and the third sampling port is communicated with the TVOC concentration detection device; a fan is arranged in the sealed cabin, two opposite bulkheads in the sealed cabin are respectively provided with two smoke collection ports, one of the two smoke collection ports of the same bulkhead is positioned at the upper part of the bulkhead, the other is positioned at the lower part of the bulkhead, and the smoke collection ports are respectively communicated with a TVOC concentration detection device; the exhaust port, the first sampling port, the second sampling port, the third sampling port and the flue gas collection port are all provided with gate valves.
In the device for detecting the volatile matters generated by the household electrical appliance, the partition plate is arranged in the sealed cabin, two ends of the partition plate are connected with two opposite sides of the sealed cabin, the top of the partition plate is connected with the top of the sealed cabin, the distance between the bottom of the partition plate and the bottom of the sealed cabin is less than or equal to 30 cm, and the exhaust port is positioned on the bulkhead of the sealed cabin, which is close to the partition plate. The general temperature of TVOC that household electrical appliances produced is higher, is located the upper portion in the sealed cabin, can more even discharge TVOC from the sealed cabin through setting up the baffle.
In the detection device for the volatile matters generated by the household electrical appliance, in order to enable the household electrical appliance to be located at the central position of the sealed cabin, the sealed cabin is further internally provided with the base plate, the thickness of the base plate is 70 cm, and when the height of the to-be-detected electrical appliance is lower, the to-be-detected electrical appliance is placed on the base plate, so that the volatile matters can be more uniformly distributed in the sealed cabin.
The method for detecting the volatile matters generated by the household appliance adopts the device for detecting the volatile matters generated by the household appliance, and comprises the following steps of:
s100: placing the electric appliance to be detected at the central position of the sealed cabin through the cabin inlet, and closing the cabin inlet;
s200: opening gate valves at the exhaust port, the first sampling port, the second sampling port, the third sampling port and the flue gas collection port, and exhausting the gas in the sealed cabin from the exhaust port by applying negative pressure to the exhaust port until the concentration of solid particles with the particle size of more than 0.3 micrometers in the sealed cabin is less than 1000 particles/liter and the concentration of TVOC is less than 0.6mg/m 3 ；
S300: closing gate valves at the exhaust port, the first sampling port, the second sampling port and the smoke collection port, sampling through the third sampling port, detecting the TVOC concentration in the sealed cabin, and marking as C o ；
S400: opening a fan, closing a gate valve at the third sampling port, opening the electric appliance to be detected to the maximum power for 24 hours, and closing the electric appliance to be detected;
s500: opening a third sampling port, detecting the TVOC concentration in the sealed cabin through a TVOC concentration detection device, and marking as C t ；
S600: calculating the concentration of volatile matters generated by the electric appliance to be detected, wherein the concentration of the volatile matters is equal to C t And C o And (3) a difference.
Specifically, the step S300 further includes the following steps: collecting TVOC concentration in the sealed cabin every ten minutes, taking the average value of three times as C o 。
The step S500 further includes the following steps: collecting TVOC concentration in the sealed cabin every ten minutes, taking the average value of three times as C t 。
As one of the preferred embodimentsIn this way, the step S500 further includes the following method: the gas collection ports collect the gas at four different positions in the sealed cabin, the TVOC concentration of the collected gas is detected respectively, and the difference value between the TVOC concentration at four positions is lower than 0.6mg/m 3 Then a third sampling port is opened, and the TVOC concentration in the sealed cabin is detected by a TVOC concentration detection device and is marked as C t . The main function of the step is to prevent volatile matters from being uniformly diffused in the sealed cabin, so that detection data are inaccurate and errors are overlarge.
As one of the embodiments, the step S100 further includes the following method: and if the height of the to-be-detected electric appliance is lower than 70 cm, placing the to-be-detected electric appliance on the base plate.
Compared with the prior art, the invention provides the device for detecting the volatile matters generated by the household electrical appliance, and the concentration of the TVOC generated by the household electrical appliance can be detected by operating the device, so that a consumer can recognize the household electrical appliance from the angle of generating the TVOC.
Drawings
FIG. 1 is a schematic diagram of the structure of an embodiment of the present invention;
fig. 2 is a schematic view of the structure of fig. 1 from another view angle.
Reference numerals: the device comprises a first sampling port, a second sampling port, a third sampling port, a 4-sealed cabin, a 5-fan, a 6-smoke collection port, a 7-partition board, an 8-observation window, a 9-cabin inlet and a 10-exhaust port.
The invention is further described below with reference to the drawings and the detailed description.
Detailed Description
Example 1 of the present invention: as shown in fig. 1 and 2, a device for detecting volatiles generated by a household appliance comprises: the sealed cabin 4 with the volume of 10 cubic meters is provided with a cabin inlet 9 and an observation window 8, and the sealed cabin 4 is also provided with an exhaust port 10; the sealed cabin 4 is also provided with a first sampling port 1, a second sampling port 2 and a third sampling port 3, wherein the first sampling port 1 is communicated with a temperature detection device, the second sampling port 2 is communicated with a humidity detection device, and the third sampling port 3 is communicated with a TVOC concentration detection device; a fan 5 is arranged in the sealed cabin 4, two smoke collection ports 6 are respectively arranged on two opposite bulkheads in the sealed cabin 4, one of the two smoke collection ports 6 of the same bulkhead is positioned at the upper part of the bulkhead, the other is positioned at the lower part of the bulkhead, and the smoke collection ports 6 are respectively communicated with a TVOC concentration detection device; the exhaust port 10, the first sampling port 1, the second sampling port 2, the third sampling port 3 and the flue gas collection port 6 are all provided with gate valves.
Example 2: as shown in fig. 1 and 2, a device for detecting volatiles generated by a household appliance comprises: the sealed cabin 4 with the volume of 10 cubic meters is provided with a cabin inlet 9 and an observation window 8, and the sealed cabin 4 is also provided with an exhaust port 10; the sealed cabin 4 is also provided with a first sampling port 1, a second sampling port 2 and a third sampling port 3, wherein the first sampling port 1 is communicated with a temperature detection device, the second sampling port 2 is communicated with a humidity detection device, and the third sampling port 3 is communicated with a TVOC concentration detection device; a fan 5 is arranged in the sealed cabin 4, two smoke collection ports 6 are respectively arranged on two opposite bulkheads in the sealed cabin 4, one of the two smoke collection ports 6 of the same bulkhead is positioned at the upper part of the bulkhead, the other is positioned at the lower part of the bulkhead, and the smoke collection ports 6 are respectively communicated with a TVOC concentration detection device; the exhaust port 10, the first sampling port 1, the second sampling port 2, the third sampling port 3 and the flue gas collection port 6 are all provided with gate valves.
The sealed cabin 4 is internally provided with a baffle plate 7, two ends of the baffle plate 7 are connected with two opposite sides of the sealed cabin 4, the top of the baffle plate 7 is connected with the top of the sealed cabin 4, the distance between the bottom of the baffle plate 7 and the bottom of the sealed cabin 4 is less than or equal to 30 cm, and the exhaust port 10 is positioned on a bulkhead of the sealed cabin 4, which is close to the baffle plate 7. A backing plate is also arranged in the sealed cabin 4, and the thickness of the backing plate is 70 cm.
A method for operating a device for detecting volatiles generated by a household appliance according to embodiment 2: the method comprises the following steps:
s100: placing the electric appliance to be detected at the central position of the sealed cabin 4 through the cabin inlet 9, and if the height of the electric appliance to be detected is lower than 70 cm, placing the electric appliance to be detected on the base plate, and closing the cabin inlet 9;
s200: opening gate valves at the exhaust port 10, the first sampling port 1, the second sampling port 2, the third sampling port 3 and the smoke collection port 6, and passingApplying negative pressure to the exhaust port 10 to exhaust the gas in the sealed cabin 4 from the exhaust port 10 until the concentration of solid particles with a particle size of 0.3 μm or more in the sealed cabin 4 is less than 1000 particles/liter and the concentration of TVOC is less than 0.6mg/m 3 ；
S300: the gate valves at the exhaust port 10, the first sampling port 1, the second sampling port 2 and the smoke collection port 6 are closed, sampling is carried out through the third sampling port 3, and the TVOC concentration in the sealed cabin 4 is detected and is marked as C o Collecting TVOC concentration in the sealed cabin 4 every ten minutes, taking the average value of three times as C o The method comprises the steps of carrying out a first treatment on the surface of the The background cleaning degree as TVOC gas is as follows: the concentration of TVOC is less than 0.6mg/m 3 The gas cleaning is realized by an active carbon filter screen, and the solid cleaning is realized by a HEPA filter screen.
S400: opening a fan 5, closing a gate valve of the third sampling port 3, opening the electric appliance to be detected to the maximum power for 24 hours, and closing the electric appliance to be detected;
s500: opening a third sampling port 3, detecting the TVOC concentration in the sealed cabin 4 by a TVOC concentration detection device, and recording as C t Collecting TVOC concentration in the sealed cabin 4 every ten minutes, taking the average value of three times as C t The gas collection ports 6 collect the gas at four different positions in the sealed cabin 4, the TVOC concentration of the collected gas is detected respectively, and the difference value between the TVOC concentration at four positions is lower than 0.6mg/m 3 Then the third sampling port 3 is opened, and the TVOC concentration in the sealed cabin 4 is detected by a TVOC concentration detection device and is marked as C t ；
S600: calculating the concentration of volatile matters generated by the electric appliance to be detected, wherein the concentration of the volatile matters is equal to C t And C o And (3) a difference.
Wherein, the steps S100 to S600 are all operated at the environmental temperature of 5 ℃ to 35 ℃, and the precision of the environmental temperature is controlled within +/-1 ℃; the whole detection method requires controlling the relative humidity of the surrounding air to be 10% -85%, and the precision of the humidity is controlled within +/-5%.
A method for detecting volatiles generated by a household appliance, using the device for detecting volatiles generated by a household appliance according to embodiment 2, comprising the steps of:
s100: placing the induction cooker in the central position of the sealed cabin 4 through the cabin inlet 9, placing the induction cooker on the backing plate for positioning the induction cooker in the central position of the sealed cabin 4, and closing the cabin inlet 9;
s200: opening gate valves at the exhaust port 10, the first sampling port 1, the second sampling port 2, the third sampling port 3 and the fume collection port 6, and exhausting the gas in the sealed cabin 4 from the exhaust port 10 by applying negative pressure to the exhaust port 10 until the concentration of solid particles having a particle size of 0.3 μm or more in the sealed cabin 4 is 800 pieces/liter and the concentration of TVOC is lower than 0.6mg/m 3 ；
S300: closing gate valves at the exhaust port 10, the first sampling port 1, the second sampling port 2 and the flue gas collection port 6, sampling through the third sampling port 3, detecting the TVOC concentration in the sealed cabin 4, collecting the TVOC concentration in the sealed cabin 4 every ten minutes, and recording to obtain 7.6mg/m 3 、7.5mg/m 3 、7.4mg/m 3 The average value of three times is taken and is recorded as C o Equal to 7.5mg/m 3 The method comprises the steps of carrying out a first treatment on the surface of the The background cleaning degree as TVOC gas is as follows: TVOC concentration of 0.6mg/m 3 The following gases, gas cleaning is achieved by the "activated carbon filter" and solid cleaning is achieved by the "HEPA filter".
S400: opening a fan 5, closing a gate valve of the third sampling port 3, opening the induction cooker to the maximum power to operate for 24 hours, and closing the induction cooker;
s500: opening a third sampling port 3, detecting the TVOC concentration in the sealed cabin 4 by a TVOC concentration detection device, and recording as C t The gas collection ports 6 collect the gas at four different positions in the sealed cabin 4, the TVOC concentration of the collected gas is detected respectively, and the difference value between the TVOC concentration at four positions is equal to 0.4mg/m 3 Then the third sampling port 3 is opened, the TVOC concentration in the sealed cabin 4 is detected by a TVOC concentration detection device, the TVOC concentration in the sealed cabin 4 is collected once every ten minutes, and 11.0mg/m is recorded 3 、12.0mg/m 3 、13.0mg/m 3 Taking the average value of three times as C t ＝12.0mg/m 3 ；
S600: the concentration of TVOC produced by the induction cooker is calculated,the TVOC concentration is equal to C t And C o The difference is equal to 4.5mg/m 3 The method obtains a very visual numerical value, and is convenient for knowing various parameters of the household appliance. Wherein, the steps S100 to S600 are all operated at the environmental temperature of 5 ℃ to 35 ℃, and the precision of the environmental temperature is controlled within +/-1 ℃; the whole detection method requires controlling the relative humidity of the surrounding air to be 10% -85%, and the precision of the humidity is controlled within +/-5%.
Claims (5)
1. A detection method of a detection device of volatile matters generated by a household appliance, characterized in that the detection device comprises: the sealed cabin (4) with the volume of 10 cubic meters is provided with a cabin inlet (9) and an observation window (8), and the sealed cabin (4) is also provided with an exhaust port (10); the sealed cabin (4) is also provided with a first sampling port (1), a second sampling port (2) and a third sampling port (3), wherein the first sampling port (1) is communicated with the temperature detection device, the second sampling port (2) is communicated with the humidity detection device, and the third sampling port (3) is communicated with the TVOC concentration detection device; a fan (5) is arranged in the sealed cabin (4), two smoke collection ports (6) are respectively arranged on two opposite bulkheads in the sealed cabin (4), one of the two smoke collection ports (6) of the same bulkhead is positioned at the upper part of the bulkhead, the other is positioned at the lower part of the bulkhead, and the smoke collection ports (6) are all communicated with a TVOC concentration detection device; the exhaust port (10), the first sampling port (1), the second sampling port (2), the third sampling port (3) and the flue gas collection port (6) are all provided with gate valves;
a partition board (7) is arranged in the sealed cabin (4), two ends of the partition board (7) are connected with two opposite sides of the sealed cabin (4), the top of the partition board (7) is connected with the top of the sealed cabin (4), the distance between the bottom of the partition board (7) and the bottom of the sealed cabin (4) is less than or equal to 30 cm, and the exhaust port (10) is positioned on a bulkhead of the sealed cabin (4) close to the partition board (7);
a backing plate is also arranged in the sealed cabin (4), and the thickness of the backing plate is 70 cm;
the detection method comprises the following steps:
s100: placing the to-be-detected electric appliance at the center position of the sealed cabin (4) through the cabin inlet (9), and closing the cabin inlet (9);
s200: opening gate valves at the exhaust port (10), the first sampling port (1), the second sampling port (2), the third sampling port (3) and the flue gas collection port (6), and discharging the gas in the sealed cabin (4) from the exhaust port (10) by applying negative pressure to the exhaust port (10) until the concentration of solid particles with the particle size of more than 0.3 micrometers in the sealed cabin (4) is less than 1000 particles/liter and the TVOC concentration is less than 0.6mg/m3;
s300: closing gate valves at the exhaust port (10), the first sampling port (1), the second sampling port (2) and the flue gas collection port (6), sampling through the third sampling port (3), and detecting the TVOC concentration in the sealed cabin (4), and recording as Co;
s400: opening a fan (5), closing a gate valve of the third sampling port (3), opening the electric appliance to be detected to the maximum power for 24 hours, and closing the electric appliance to be detected;
s500: opening a third sampling port (3), detecting the TVOC concentration in the sealed cabin (4) through a TVOC concentration detection device, and recording the TVOC concentration as Ct;
s600: and calculating the concentration of volatile matters generated by the to-be-detected electric appliance, wherein the concentration of the volatile matters is equal to the difference between Ct and Co.
2. The method of detecting a volatile matter detecting device for a household appliance according to claim 1, wherein the step S300 further comprises the steps of: the TVOC concentration in the sealed cabin (4) is collected every ten minutes, and the average value of three times is taken as Co.
3. The method for detecting a volatile matter detecting device for a household appliance according to claim 2, wherein the step S500 further comprises the following steps: the TVOC concentration in the sealed cabin (4) is collected every ten minutes, and the average value of the TVOC concentration in the sealed cabin is taken as Ct.
4. A method for detecting a device for detecting volatiles generated by a household appliance according to claim 3, characterized in that said step S500 further comprises the following steps: the gas collection ports (6) are used for collecting the gas at four different positions in the sealed cabin (4), the TVOC concentration of the collected gas is detected respectively, the difference value of the TVOC concentration at the four positions is lower than 0.6mg/m < 3 >, which is an arbitrary combination of the TVOC concentration and the TVOC concentration, then the third sampling port (3) is opened, and the TVOC concentration in the sealed cabin (4) is detected through the TVOC concentration detection device and is recorded as Ct.
5. The method according to claim 4, wherein the step S100 further comprises the steps of: and if the height of the to-be-detected electric appliance is lower than 70 cm, placing the to-be-detected electric appliance on the base plate.
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| CN201710121121.5A CN106680438B (en) | 2017-03-02 | 2017-03-02 | Device and method for detecting volatile matters generated by household appliances |
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| CN101566531B (en) * | 2009-05-14 | 2012-05-23 | 中国建筑科学研究院 | Environment test cabin and method for obtaining test environment by applying same |
| CN201609656U (en) * | 2010-02-08 | 2010-10-20 | 济南海纳特科技有限公司 | VOC and formaldehyde release amount detection climatic chest |
| CN101832887B (en) * | 2010-05-19 | 2012-05-09 | 南昌大学 | Small-sized environmental test chamber for pollutant release researches |
| CN202693567U (en) * | 2012-07-19 | 2013-01-23 | 广东省建筑科学研究院 | Environmental test chamber for detecting harmful substances in indoor environment decoration materials |
| CN104697949A (en) * | 2013-12-05 | 2015-06-10 | 张双保 | Rapid nondestructive testing method for harmful substances in furniture |
| CN204122136U (en) * | 2014-10-11 | 2015-01-28 | 四川农业大学 | Furniture volatile matter detects climate compartment |
| CN106093311B (en) * | 2016-08-08 | 2019-03-19 | 北京市产品质量监督检验院 | Smell, VOC and floating harmful substance test device |
| CN205982222U (en) * | 2016-08-08 | 2017-02-22 | 东莞市升微机电设备科技有限公司 | Smell, VOC and showy harmful substance checkout room with outer circulating filter apparatus |
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