The Maxi Pleat MERV 8 anti-allergen pleated air filter is the ideal filter for providing cleaner and healthier air in your home or business. This filter is able to filter down to 3 microns, capturing airborne particles that would otherwise re-circulate into your space. Airborne allergens such as dust, pollen, pet dander, mold, and smoke and easily filtered out of the air to promote a healthier environment. Apart from the health benefits associated with changing your furnace's air filter on a regular basis, your HVAC system will also benefit, as it will be able to operate at peak efficiency; ultimately leading to lower energy consumption as well as reduced wear and tear. A clean air filter also helps avoid costly repair bills that can be caused by blocked air filters and their effect on your ventilation system. The #1 cause of system failure is dirt and neglect.