Polyester fabric material anti pollution dust face mask
* Inside resin nose clip and adjustable elastic buckle to get fit face sealing effect
* Insert 4 pieces-5 layer protection PM2.5 filters or not needed
* General 1-2 week cleaning time by hands and prohibition for 2-4 age of children
- stretchy material, one size fits most
- please remember, no mask or scarf will completely protect your from airborne illnesses. this product is not fda approved and it not equivalent to surgical masks. these scarves are a substitute if surgical masks are not available.