Your Home constantly receives "fresh air" that enters your home though a furnace fresh air intake vent mounted on the exterior wall of your house, that has little or no protection for you and your family from Dust, Allergens, Airborne bacteria, Insects, and other contaminants.
Before & After
The Ultimate Vent
Stops West Nile virus carrying mosquitoes, venomous spiders, flies, moths, ants, mice, from inhabiting your ducts.
Stops Pollens, dust, allergens and air borne bacteria and other pollutants.