Formaldehyde and other aldehydes are the main pollutants in indoor air. Formaldehydes are mainly obtained from paint, polymerizing plates, bindings, chemical fibers and even cigarette smoke Activated carbon adsorbents are the most promising adsorbents when adsorption of traces of gases and vapors is concerned. Our impregnated activated carbons offer effective chemisorption of formaldehyde from air.