The Filtrete Allergen Defense filter attracts and captures microscopic allergens like dust, smoke, and smog particles and large allergens like mold spores and pollen. For residential use only.

Opt for a Filtrete™ Allergen Defense Air Filter to transform your central heating and cooling system into a whole-home air filtration operation. This no-nonsense filter helps capture varying sizes of particles, from the large (lint, pollen, dust and pet dander) to the microscopic (smoke and smog).

• 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
• Find Your Size: Mpr 1000, Mpr 1200 And Mpr 1550 Available In 4 In., 4 In. Slim Fit And 5 In. Thick Air Filters
• For Optimal Performance Of Your Heating & Cooling System Or Hvac System, Change Your Home Air Filter At Least Every 90 Days For 1 In. Filters, And At Least Every 12 Months For 4 In. And 5 In. Filters
• A Dirty Filter Will Slow Down Air Flow And Make The System Work Harder To Keep You Warm Or Cool--Wasting Energy. Sign-Up For A Filter Change Reminder Program (Www.Filtrete.Com/Changereminders) That Works For You!

• Thickness: 1 in
• Width: 20 in