в наличии сертификат ce fda n95 маска рот маска для лица пыль анти-инфекция kn95 маски респиратор pm2.5 же защитный, как kf94 ffp2 крышка ли

main ingredient:non-woven fabric,meltblown fabric,hot air cotton. filtration efficiency:non-oily particulate matter filtration rate more than 95%. product storage:storage temperature : 20 degrees-38 degrees,storage temperature less than 83%.its should be stored in a well-ventilated,dark and dry enviroment and away from fire sources and pollutants. validity:three years.