Universal, antimicrobial, cut-to-fit filter fits all standard A/C units, as well as central air units (just place filter between air return gate and standard air filter). Lasts six times longer than standard foam filters Simple 'cut-to-fit' design-Just measure, cut, and install with the flat side toward the compressor. 100% washable-rinse with warm water, dry, and replace Anti-microbial filter resists growth of bacteria, mold, and fungus Unique design creates an electrostatic charge that removes common airborne particulates from your home
