The perfect add-on to your mask sealed in a 5 pack bag. Made of activated carbon and non-woven melt-blown filter cloth. Good for up to 70 hours of use per filter.
* First layer of spunbond cloth filters micron-level dust.
* Second layer filters industrial pollutants, automobile exhaust, second-hand smoke, and pollen allergens.
* Third layer of activated carbon cloth filters micron-level dust.
* Fourth layer offers filter density for smaller material.
* Fifth layer of spunbond cloth filters micron-level dust.