kn95 ce certification mouth face masks dustproof respirator reusable n95 masks adaptable against pollution breathable mask as kf94 ffp3

how long will it take my mask to arrive? -if you place order now, your mask will be sent out within 24 hours. about kn95 masks: kn95 mask can isolate smaller particles, and fit tighter to the face, it is not easy to leak air from the periphery, and the filtration efficiency of particulate matter can reach 95% under standard conditions. the n95 mask is not a disposable mask. in this special case (resource shortage), it can be reused.