VariCel® RF/C & RF/C+SAAFOxi gas-phase filters, with galvanized steel construction and plastic pleat spacers on the air entering and air leaving sides, withstand the most demanding applications. The pleat spacers maintain the shape of the synthetic media pack and ensure that both the effectiveness and service life are maximized.  VariCel® RF/C and RF/C+SAAFOxi™ filters replace existing HVAC filters of the same type with no changes required for frames or latches. They are packed and sealed in individual polyethylene bags to preserve capacity and cleanliness. VariCel® RF/C filters use filter media containing 60% activity granular activated carbon to remove odors and gaseous pollution. VariCel® RF/C+SAAFOxi™ filters are made with SAAFWeb™ technology containing equal volumes of 60% activated carbon and AAF’s proprietary activated alumina impregnated with potassium permanganate (KMnO4) to remove odors and light gases. Either loading will provide a fresher, more odor free environment.