electro air carbon pleated postfilter S1-FRKIT1213_width_25 Package contains 1 set of

Package contains 1 set of 3 filter

Easy Installation & Requires annual replacement

the filtering media has a flexible one inch 'selvedge edge'  that exceeds past the galvanized steel frame to provide a complete gasket seal around the perimeter

anti-bacterial chemical coatings are not needed

and dust mites

electro air carbon pleated postfilter S1-FRKIT1213_width_25 Package contains 1 set ofPleated carbon postfilter for HEPA air cleaner. Installs underneath main HEPA filter. The activated carbon pre filter and the optional after filter can remove lint and unpleasant odors, atmospheric and household dust, coal dust, insecticides, dust mites, pollen, mold spores, fungi, bacteria, cooking smoke and grease, pet dander and tobacco smoke particles. Lifespan: 6 Months