SimpleAir SC-3200 Duct Fresh Spray HVAC Air Freshener, Cleaner, Deodorizer Non Toxic for Odor Block, 32 Oz

Simple Air Duct Fresh Gel brings the power of our signature liquid formulation to a gel. The gel provides a long-life (up to 90 days) and is ideal to use as a whole-house odor eliminator. Our professional strength gel formula is air-activated. The best application is to place opened gel tub next to air handler or blower of the HVAC system. As air passes, the Duct Fresh Gel is activated and delivers the odor removing agent throughout the entire central heating and air conditioning system.