Guardian Clean Air Furnace Filters by CST


The Guardian Clean Air Furnace Filters by Aerus are designed to give optimum performance, providing the highest level of filtration. MERV 12 rating. Includes one-year supply (4 filters).

Size: 16" x 20" x1"
  • Captures 95% of pollutants as small as 0.3 microns
  • True MERV 12 rating
  • Electrostatic fibers attract and capture pollutants from the air
  • Eliminates mold, mildew, pet dander, dust, dust mites, pollen, bacteria, and smoke
  • A strong frame resists pressure to bend or break from airflow, enuring all air passes through the filter
  • Pleated filter provides additional surface area to capture particles
  • Includes plastic bags for proper disposal
These new Guardian Clean Air furnace filters by Aerus are our most cost effective filters yet! With a true MERV 12 rating these filters provide a high level of filtration, protecting your homes environment from airborne dust and allergens. Changing the air filter in your home on a regular basis will improve your indoor air quality and help your HVAC system to run more efficiently. Guardian Clean Air filters purify the air you breathe, protecting you and your family's health.