Powecom KN95 Face Mask Filter Efficiency 99.2% FDA Authorized - 10 pc

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$39.99 $49.99
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Total Particulate Filtering Efficiency (PFE) is over 95%

POWECOM KN95 masks are produced in very clean, almost dust-free production environments.

The KN95 masks comply with standard GB 2626-2006 (KN95 grade), The performance is tested on four sections:

1) the Filtering efficiency, is over >95%

Tested using NACL as the particulates, the flow is: 85L/minute, the density of particulates: 15mg per CBM, at regulated temperature range, and at regulated humidity range

2) the resistance to inhale (air in) : must be less than 350 Pa

3) the resistance to exhale (air out): must be less than 250 Pa

4) the quality of ear loop / headband straps: pulling force of 10N lasting for 10 seconds, must be OK, cannot break


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