Flanders MERV 11 Model 82755 air purifier :This whole-house air purifier from Flanders is a replacement for a forced-air heating/cooling system’s filter. ...

Filtrete 1900 MPR air purifier :This whole-house air purifier from 3M can be installed by a do-it-yourselfer as a replacement for a forced-air ...

Flanders PrecisionAire Pre-Pleat 40  :This whole-house air purifier from Flanders is a replacement for a forced-air heating/cooling system’s filter....

Lennox X6675 Carbon Clean 16 air purifier  :This whole-house air purifier from Lennox is a replacement for a forced-air heating/cooling system’s filter. ...

Carrier EZ Flex Filter Cabinet air purifier :This whole-house air purifier from Carrier is a replacement for a forced-air heating/cooling system’s filter. ...