PM2.5 Double Filter Face Mask

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. The filter can be replaced by yourself expediently
Excellent Filtration - Military design mask provides excellent filtration. Built by comfortable and breathable 5 layers filter cotton, it can isolate 95-percent of dust, chemicals, exhaust, smog, fumes, PM 2.5 and particulates
Multiple Usage - Suitable for pollen season and outdoor activities such as running, jogging, biking, cycling, riding, hiking, skiing, snowboarding
Approximate size: 16 x 16 x 5cm