Air Filter 19 1/2 X 21 MPN:FIL36-42

The air filter with dimensions of 19.5 x 21, commonly referred to as a furnace filter, is designed for residential and commercial HVAC systems. Its purpose is to purify the air circulated by your heating or cooling system while protecting it from dust, allergens and other debris that can harm components over time leading to reduced efficiency. Equipped with activated carbon layered on its surface for odor control along with electrostatically enhanced synthetic fibers which capture more contaminants per square inch compared to standard filters resulting in a healthier, fresh environment indoors. These filters come pre-treated and are suitable for a variety of air cleaner brands ensuring an easy installation and seamless transition. The convenience it provides makes them favorites for those who prefer not having to change their furnace filter every month while keeping dust build-up at bay, ideal homeowners, facility managers or businesses looking out for long-lasting durable filters.