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Reference testing standard: IEST-RP-CCO21.3
Test object: filter material
Test item: Filter material filtration efficiency, resistance
Test accuracy range: Filtration efficiency range: 20% -99.9995% Test air volume: 30L/min360L/min
Particle counter model: PMS Lasair ? Ⅲ110

Reference testing standard: EN18822-4
Test object: filter, filter material
Test item: Check if the filter leaks

Reference testing standard: IEST-RP-CCOO7.2, ANSI/ASHRAE 52.2
Test objects: air purifier filter, vacuum cleaner filter
Test items: Filter filtration efficiency, initial resistance
Testing accuracy range: Filtering efficiency range: 20% -99.99% (0.1-1.0 μ m)
Test air volume: 5m3/h~42m3/h
Particle counter model: TOPAS LAP 340/TSI 3330

Reference testing standard: IEST-RP-CCOO7.2
Test objects: air purifier filter, vacuum cleaner filter
Test items: Filter filtration efficiency, initial resistance
Testing accuracy range: Filtering efficiency range: 20% -99.9995% (0.1-1.0 μ m)
Test air volume: 10m3/h~200 m3/h
Particle counter model: PMS Lasair ? Ⅲ110

Reference standards: GB/T 18801-2022 ANSI/AHAM AC-1-2020
Test object: Air purifier and fresh air fan
Test item: (PM2.5, PM1.0) particulate matter clean air volume
Test chamber volume: 30m 3
Equipment configuration: Laser aerosol particle size spectrometer (TSI3340), fully automatic cigarette smoke generator

Reference standard: GB/T 18801-2022, GB/T 18204.2-2014
Test object: Air purifier and fresh air fan
Test item: Formaldehyde clean air volume
Test chamber volume: 30m 3
Equipment configuration: Air sampler, thermal desorption instrument, gas chromatograph TD-30/GC-2010 Pro

Reference standard: GB/T 18801-2022, GB/T 18204.2-2014
Test object: Air purifier and fresh air fan
Test items: particulate matter, formaldehyde, VOC clean air volume
Test chamber volume: 81m 3
Equipment configuration: Laser aerosol particle size spectrometer (TSI3340), fully automatic cigarette smoke generator

Reference standard: GB/T 18801-2022, GB/T 18883-2022
Test object: Air purifier and fresh air fan
Test item: Gaseous pollutants (toluene, TVOC) Clean air volume
Test chamber volume: 30m 3
Equipment configuration: Air sampler, thermal desorption instrument, gas chromatograph TD-30/GC-2010 Pro

Reference testing standard: GB/T 18801-2022
Test objects: air purifier, fresh air fan
Test items: Cumulative purification of particulate matter, cumulative purification of gaseous pollutants (formaldehyde, toluene, TVOC)
Test chamber volume: 3m 3
Equipment configuration: fully automatic cigarette smoke generator, fuel injection pump

Reference testing standard: UL867
Test objects: air purifier, fresh air fan
Test items: 24-hour ozone production, one-time ozone filtration efficiency, ozone lifespan
Test chamber volume: 30m 3
Equipment configuration: Ozone detector (MODEL-T400)

Reference standards: ANSI/ASHRAE 52.2 ISO/TS 11155-1
Test object: Vacuum cleaner filter, dust bag
Test items: dust holding capacity, resistance
Testing principle: By loading dust into the filter or dust collection bag, the final resistance is tested according to the set loading amount and time to determine the dust holding capacity of the filter or dust collection bag

Reference standard: EN779, ANSI/ASHRAE 52.2、ISO/TS 11155-1
Test object: Vacuum cleaner filter, dust bag
Test items: dust holding capacity, resistance
Testing principle: By loading dust into the filter or dust collection bag, the final resistance is tested according to the set loading amount and time to determine the dust holding capacity of the filter or dust collection bag

Reference standard: HJ 586-2010 Determination of free chlorine and total chlorine in water quality
Test object: Water purification filter
Test item: residual chlorine, total hardness
Testing principle: Residual chlorine: Free chlorine reacts directly with N, N-diethyl-1,4-phenylenediamine (DPD) to produce a red compound, and its absorbance is measured by spectrophotometry. Total hardness: Calcium and magnesium ions in the water sample form a purple red chelate with the chromium black T indicator. When pH=10, disodium ethylenediaminetetraacetic acid first forms a chelate with calcium ions, and then with magnesium ions. When titrated to the endpoint, the solution appears pure blue with the chromium black T indicator.

Reference standard: GB/T 30307-2013 Household and Similar Use Drinking Water Treatment Equipment Test object: Household and similar drinking water treatment devices
Test items: hydrostatic pressure, rupture test, cyclic pressure
Testing principle: Conduct several impact experiments on the tested object by simulating the water pressure in use to verify whether its structural strength can meet the usage requirements

Reference standard: GB/T 5750.4-2023 Standard Test Method for Drinking Water
Test object: Drinking water
Test items: Conductivity, pH
Testing principle: When the concentration of hydrogen ions changes, the electromotive force between the glass electrode and the calomel electrode also changes. At 25 ℃, each unit of pH scale is equivalent to a change in electromotive force of 59.1 mV, which is directly represented by the pH reading on the instrument.

Reference standards: 1. GB/T 12496.8-2015 Test methods for wooden activated carbon Determination of iodine adsorption value
2. GB/T 12496.5-1999 Test methods for wooden activated carbon Determination of carbon tetrachloride adsorption rate (activity) 3. GB/T 7702.3-2008 Test Method for Granular Activated Carbon from Coal - Determination of Strength Test object: Activated carbon
Test items: Iodine adsorption value, carbon tetrachloride adsorption capacity, strength

Reference standard: GB/T 4857.4 GB/T 4857.3
Measurement range ≤ 10KN
Distance between upper and lower pressure plates: 800mm
Measurement range: 800 * 800 * 800MM
Measurement accuracy: ≤± 1%
Compression speed: 0-85 mm/min (adjustable speed)

Reference standard: ISO 2247 ISO 13355 IEC 60068 ASTM D999 ASTM D4728 ASTM D3580 GB/T 4857 GB/T 2423
Frequency accuracy: 0.1Hz
Amplitude (mm) : 0-5
Vibration direction/waveform: triaxial (X+Y+Z)/sine wave
Test mode: fixed frequency, sweep frequency, double frequency, program, logarithm, random
Table size (mm) : (W) 800 x (D) 800 x (H) 720