Total Particulate Filtering Efficiency (PFE) is over 95%
POWECOM KN95/FFP2 masks are produced in very clean, almost dust-free production environments.
The KN95 masks comply with standard GB 2626-2006 (KN95/FFP2 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 headband straps: pulling force of 10N lasting for 10 seconds, must be OK, cannot break
KN95 MASKSmooth Breathing
Flexible metal fastening strip ensures optimal sealing between the bridge of the nose and the mask.
The intended use of the KN95 protective masks is to protect the wearers against non-toxic solid, particulates, powder, PM2.5 smog, dust, saliva, suitable for non-oil particles.
We use anti-counterfeit technology & Anti Counterfeit label for authentic POWECOM brand KN95/FFP2 masks.
There is an Anti-Counterfeit Label pasted on each bag of the Powecom KN95/FFP2 protective masks.