PM 2.5 Filters Activated Carbon 5 Layers Replacable (50 PCS) ¡­

Materials: activated carbon and non-woven melt-blown filter cotton.5 layers Protection: Comfortable and breathable. Protect you from a range of airborne contaminants.

Packaged included: 50 pcs PM 2.5 filters.
Materials: activated carbon and non-woven melt-blown filter cotton
Size: 4.9 x 3.1 inches, suitable for varies of mask which have inside slot.
5 layers Protection: Comfortable and breathable. Protect you from a range of airborne contaminants.
Ideal for people at risk of respiratory diseases, living in or travelling to areas with high air pollution / smoke level.