* To be used with Multiuse Protective Respirator Mask
5 LAYER FILTER: The first layer blocks large particles, the second activated carbon filter layer filters particles like benzene, and car exhaust. The third and fourth layers filter 0.03-0.3 microns of dust and particles. The fifth non-woven layer is comfortable and breathable.
PACK OF 10: Stock up on replacement filters so you keep your mask as effective as possible.