Considered similar to US NIOSH N95 and European FFP2 respirators, for filtering non-oil-based particles such as those resulting from wildfires, PM 2.5 air pollution, volcanic eruptions, or bioaerosols (e.g. viruses).Certification/Class (Standard):• Filter performance – (must be = X% efficient): = 95%• Test agent: NaCl• Flow rate: 85 L/min• Total inward leakage (TIL)* – tested on human subjects each performing exercises: = 8% leakage (arithmetic mean)• Inhalation resistance – max pressure drop: = 350 Pa• Flow rate: 85 L/min• Exhalation resistance - max pressure drop: = 250 Pa• Flow rate: 85 L/min• Exhalation valve leakage requirement: Depressurization to 0 Pa = 20 sec• Force applied: -1180 Pa• CO2 clearance requirement: = 1%
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