With this product, you will typically only need to change the filter once each heating and cooling season. And, replacing the filter is quick and easy. Simply slide out the old filter, expand the new filter and slide it into the cabinet. Ask your indoor weather expert to help you improve your indoor air quality with a 31MF Mechanical Air Cleaner. Pleated Media Filter captures airborne particles as small as .3 microns without restricting airflow.
Collapsible filter is easy to expand and install.
Silent Operation is achieved. There are no moving parts to create noise. No Additional Electrical Consumption means the 31MF Mechanical Air Cleaner operates at no cost and produces no irritating ozone.