Fine quality mouth cover with breathing valve, soft and breathable, comfortable to wear. It can effectively provide protection against dust, automobile exhaust, pollen, etc. A necessity for outdoor, travel and other public places.

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.

Specifications:
Material: sponge
Color: black
Quantity: 1pcs, 5pcs (optional)
Package weight: 7g / 0.25ounce (1pcs); 35g / 1.23ounce (5pcs)
Package size: 
* 1pcs: 70 * 40 * 10mm / 2.76 * 1.57 * 0.39in
* 5pcs: 155 * 125 * 20mm / 6.10 * 4.92 * 0.79in

Packing List: 
1 * Mouth Cover / 5 * Mouth Covers (Optional)