How Do You Clean Permanent Furnace Filters?
Permanent furnace filters are convenient and often economical. They come with impressive names like “electronic” and “electrostatic” and promise high “MERV” values. It’s quite likely your permanent filter is slightly more efficient than the disposable ones, but it has nowhere near the efficiency of the HEPA filters they use in hospitals and bars where smoking is allowed. The most important aspect of permanent filters is that they must be cleaned in order to perform properly or they won’t be efficient or economical. Read the directions to find out what type of permanent filter you have. Find out whether you’ve got the type with a pleated filter or one with polyester or metal insides. The ones with the pleated insides are either refillable or permanent. The filters with metal grills and polyester or metal insides are generally cleanable. Whatever type filter you have, it must be kept clean for the furnace and air conditioner to work efficiently. A filter that is too clogged with dirt can
