Airfiltronix - Model FR-4 -Activated Charcoal Filter

Steam activated charcoal or coconut shell carbon is effective in adsorbing most commonly found organic vapors and odors. It can adsorb up to 50% of its own weight in some cases with the average being 33 1/3%. Standard activated carbon does not have much capacity for some reactive gases. Where gases are chemically reactive, specially impregnated carbon can be recommended.