Filtrete 18x20x1, AC Furnace Air Filter, MPR 1000, Micro Allergen Defense, 4-Pack (exact dimensions 17.81 x 19.81 x 0.81)
Brand: Filtrete
OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. home air filters for your furnace, air conditioner or HVAC system
DESIGNED WITH EXCLUSIVE Filtrete Brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through
ATTRACTS AND CAPTURES particles such as lint, pollen, dust, pet dander, smoke and smog
1000 MPR has a rating of MERV 11
The higher the MPR, the more microparticles--such as pollen, pet dander, smoke, bacteria and viruses--your filter will capture from the air passing through it