This PM2.5 dust mask features a valve,which can easily expel exhalation air.
Double filter layer,provide a better filtration effect,improve protection.
Efficiently block dust,pollen,air pollution,protect your mouth and nose.
The sponge mask is skin-friendly,breathable and comfortable to wear.
It is washable,reusable,the filter insert can be easily replaced.
Color: Black, blue, red,pink.
Size: Show as picture.
2x Filter insert.