BNX Quality Control Testing Procedure Mask Review Video
Lot / Batch # E220811 - Model E95W - KN95


Results Interpretations:
1) F = Air Flow Rate (L/min)
Masks and respirators are tested using an air flow rate of 85 L/min.

2) R = Resistance (mm H20)
This is also referred to as pressure drop, and it correlates with mask and respirator breathability, so the lower the number, the more comfortable or breathable the mask and respirator are.

3) P = Penetration (%)
Filtration Efficiency = 100% - Penetration%
Penetration results should never be more than 5%, as the filtration efficiency required for both N95 and KN95 is at least 95%.

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