Termin 8 Anti Pollution Washable Cotton Mouth 1x Mask with 2x Valve Replaceable Filter Mask with Activated Carbon Non Woven Fabric, PM 2.5 5 Layer Filter, Protection for Pollen Allergy, Woodworking Mowing, Running, Cycling, Outdoor Activities Unisex Universal Size - Face shape design, nose portion of an aluminum sheet secured to prevent slipping and velcro adjustable size, suitable for most people to protect the face Material - The dust mask is made of activated carbon non woven fabric, comfortable to wear for protecting the face. With good windproof and dustproof effect Unique Ventilation Design - Mouth have ventilation holes, double air valve help you breath easier and freely when riding the bike. Features : Dust mask made of ultra-soft cotton. Excellent permeability and soft texture are suitable for your life. Hand you healthy and breathe safely. Adjustable to each person’s nasal type to make mask and nose better fit, increase mask sealing effect, avoid breathing caused by the fog of glasses. Specification : Color : Black Size : Medium Option Available : 1 Face Mask with 2 Filters