Dustproof Mouth Cover Sponge Cover with Breathing Valve Fog-proof Face Mouth Cover

Features:
Made of fine quality material, breathable and comfortable.
Soft and skin-friendly, non-toxic and non-irritating, safe to use.
Dust-proof and fog-proof. It can effectively provide protection against dust, automobile exhaust, pollen, etc.
Designed with breathing valve to reduce heat and humidity build-up inside the mouth cover, making it more comfortable to wear.
One size fits most, suitable for both men and women.
You can wash it with water directly.
A necessity for outdoor, travel and other public places.