The carbon refill will filter out indoor and outdoor pollutants such as cigarette smoke, soot, smog, dust, exhaust fumes, pollen, pet dander, mold and formaldehyde by 50-90%.
The filter consists of powdered activated carbon bound onto a polyester support material.
The filter lasts 30-90 days, depending on environment. Store the mask in a zip lock bag or glass jar to help extend the life of the filter.
There is no warranty on this product unless it is defective upon arrival.
Due to hygiene concerns this mask cannot be returned under any circumstances.