Carbon Filters are used in military gas masks. This advanced carbon deodorizer is designed to absorb gasses, pollutants and airborne chemicals from household cleaning products, paints, tobacco smoke and other impurities that may irritate the eyes, nose and throat. Cannot be cleaned, DO NOT WASH. Under normal conditions this filter should be replaced each year. If heavy chemicals or gases are in the environment the filter may need to be replaced more often.
Included: Only carbon filter