AirWash Ultra VOC Kit, VOC Canister and PreFilter Capture Chemicals and Odors Add or replace VOC canister in AirWash models AWW350, AWW675, 7500, 10000, 6000V Cart, 7000 Cart, IS5000, IS5000 Cart or, 4000 VOC Chem. Carbon acts as a sponge to adsorb VOC’s. Includes carbon prefilter and 100% carbon canister VOC filter. Granulated carbon collects chemicals and odors on a molecular level. VOC cartridge air filter is important where increased VOC removal is required. Amaircare ULTRA VOC Canisters are 100% carbon. Kit contains : one Stage One Filter: 1/8â€ Foam Prefilter, One Stage Three Filter: Granulated Carbon pellets encased in steel mesh canister (1550g = 1,705,000 m2 adsorption surface area), one replacement O ring/gasket. Note: Filters not returnable unless deemed defective by manufacturer. Please be sure to order the correct size and type for your Amaircare unit.