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%.
Filter media is made of coconut shell carbon.
Filter should last up to 30-90 days, depending on environment. Store the mask in a zip lock bag or glass jar to help extend the life of the carbon.
There is no warranty unless defective upon arrival.
Due to hygiene concerns this filter cannot be returned under any circumstances.