Important Technical Indicators Of XTNU Protective Masks
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2023-03-04 22:02:47
Important Technical Indicators Of XTNU Protective Masks
Including non-oily particle filtration efficiency and airflow resistance.
(1) Filtration efficiency: Under the condition of air flow (85±2) L/min, the filtration efficiency of sodium chloride aerosol with aerodynamic median diameter (0.24±0.06) μm is not less than 95%.
(2) Tightness: The total fit factor of the mask should not be less than 100.
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