A. Overview:

Itis used to test the particulates filtration efficiency of daily face masks andfilter materials, which is applicable to medical device inspection center,safety protection inspection center, labor protection inspection center, druginspection center, disease prevention and control center, textile testingcenter, hospitals, mask companies, etc.

B. Applicable Standards:

GB2626-2019: Respiratory protection—Non-powered air-purifying particle respirator

GB/T32610-2016: Technical specification of daily protective mask

GB/T19083-2010:Technical requirements for protective face mask for medical use

YY0469-2011:Surgical mask

C. Technical Parameters ofFace Mask Particulate Filtration Efficiency:

1.    Flow Range: (10～100) L/min, accuracy 2%

2.    Filtration Efficiency: (0.001～99.999)%

3.    Resistance: 0～2000Pa, accuracy 2%

4.     TestArea: 100cm²

5.     Aerosol:NaCl (optionally with DOP, DEHS, paraffin oil, corn oil)

6.    Aerosol Concentration: (12～20)mg/m³ (salt), (50～200)mg/m³ (oil）

7.     TestMode: initial efficiency and loading efficiency

8.     TestTemperature: (25±5) ℃

9.     RelativeHumidity: (30±10)%

10. Dimensions:650×870×1500mm

11. Weight:70kg

12. PowerSupply: AC220V 50Hz

13. CompressedAir: 550 kPa, 198 std. L/min

D. Configuration Table