kn95 ce ffp3 face masks certification anti infection n95 mouth mask reusable particulate respirator pm2.5 same protective as kf94 ffp2

cover material: blush certified: ce/model: fda kn95 nose clip: yes regular color: white scope: haze, dust, germs, formaldehyde, secondhand smoke, automobile exhaust, she material: non - woven fabric filtering effect: 95% or greater respiratory valve device: no packing method: carton high