the replaceable filters have a variety of uses for this dust respirators, from mowing to running, cycling, hiking, skiing and other outdoor activities in extremely cold climates. Material : Non-woven fabric ,Cotton Description: This adult Cover is specially designed for face, suitable for adult,Children use and provides better protection. This respirator can be used to protect you from harmful, vehicle exhaust, woodwork, and fumes. Ideal for people at risk of respiratory diseases, living in or travelling to areas with high air pollution Only the gasket of the Cover needs to be replaced. The printed Cover can be recycled. Gender: all Note:Due to possible physical differences between different monitors, the product photography is illustrative only and may not precisely reflect the actual color of the item received