<p>SMELLRID Reusable Activated Carbon Vent Filters are sturdy, flexible non-woven filters impregnated with activated carbon. Each 4&quot; x 14&quot; vent filter is designed to fit most furnace ductwork vents, but can also easily be trimmed to fit.</p> <p>Place SMELLRID Activated Carbon Vent Filters on the air vents of your home and the air circulated by your furnace or HVAC system is scrubbed free of odors, allergens and air-borne pollutants that can make sensitive family members and guests miserable.</p> <p><b><font color="#00429A">Stop Odors &amp; Allergens Naturally</font></b></p> <p>SMELLRID Activated Carbon Vent Filters form a natural barrier against air-borne odors plus pollutants and are especially beneficial in sick rooms, nurseries, and bedrooms. As air is pulled through the SMELLRID vent filters, odor molecules and micro-allergens are absorbed and captured by the activated carbon infused in each filter. The result is cleaner, fresher air and significantly reduced air-borne particles and irritants.</p> <p>SMELLRID Reusable Vent Filters offer the additional benefit of acting as a natural de-humidifier. The activated carbon naturally aids in controlling the damaging and irritating effects of air-borne mold and mildew, producing a drier environment that allows your family to breath easy.</p> <p><b><font color="#00429A">Save Money &amp; Enjoy Long-lasting Air Purification with Reusable Filters!</font></b></p> <p>SMELLRID Reusable Activated Carbon Vent Filters are easily reactivated and reused by placing in direct sunlight for one day. Once re-activated, each vent filter is ready to provide long-lasting, highly effective, and very affordable air purifying and deodorizing.</p>