product name :kn95 with valve disposable protective mask
quantity :20pcs box
valid :2 years
executive standard :gb2626-2006
protection level :kn95
structive and composition :
this product is made of non-woven fabric , polypropylene melt-blown cloth , hot air cotton ,nose clip and ear band .
Raw material :35% non-woven fabric , 42 %melt-blownfabric ,23% hot air cotton .
anti-spit ,anti-sand ,anti-dust anti-fog , anti-virus
the product should be stored in a relative humidity not exceeding 80 %,non-corrosivegas and well-ventilated room ,avoid direct sunlight ,and prevent from getting wet