100% polyester, breathable and soft, windproof and dustproof. (1 mask contains 2 filters)
It can protect your mouth and face from dust, cold, dust, allergies, exhaust emissions, passive smoking, etc.
Equipped with two replaceable 5-layer activated carbon filters, M-shaped nose clip, and adjustable straps, which are suitable for most people’s facial contours without leaving marks on the face.
Suitable for indoor and outdoor use, suitable for cycling, camping, running, traveling, climbing and daily use.
Can be reused and hand washed. For your health, please replace the filter in time.