Dust mask with flap - vertically foldable, KN95, black

The dust mask with KN95 valve is vertically foldable. It is intended for multiple use, but must be replaced when it receives contaminants such as saliva, blood, tears and other body fluids. The standard of mask protection is FFP2.The particulate filtration efficiency is over 97% PM2.5.The plate on top allows a very tight fit to the nose.It is recommended to replace it after using it up to 10 times.