• Filtrete™ Allergen Defense Air Filters
  • Filtrete™ Allergen Defense Air Filters

    • Outperforms fiberglass, washable and non-electrostatic 3-month pleated 1" home air filters for your furnace, air conditioner, or HVAC system
    • Exclusive Filtrete™ Brand 3-in-1 technology from 3M traps unwanted air particles, letting cleaner air flow through
    • Available in 800, 1000, 1085 and 1200 MPR (Microparticle Performance Rating) and have a rating of MERV 11
    • 1000 and 1200 MPR also available in 4”, 4” slim fit and 5” air filters
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    Opt for a Filtrete™ Pollen & Pet Dander OR Allergen Defense OR Allergen Defense Extra OR Allergen Reduction 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" home air filters for your furnace, air conditioner, or HVAC system
    • Exclusive Filtrete™ Brand 3-in-1 technology from 3M traps unwanted air particles, letting cleaner air flow through
    • Available in 800, 1000, 1085 and 1200 MPR (Microparticle Performance Rating) and have a rating of MERV 11
    • 1000 and 1200 MPR also available in 4”, 4” slim fit and 5” 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” filters, and at least every 12 months for 4” and 5” filters.
    • For residential use only
    • 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
    • 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 that works for you!
    Specifications
    Attribute Name
    Value
    Filter Life
    12 Months, 3 Months
    MERV Rating
    MERV 11, MERV 9
    Microparticle Performance Rating
    1000, 1000 / 1085, 1085, 1200, 800
    Package Contents
    1 Pack, 2 Pack, 3 Pack, 4 Pack, 6 Pack
    Size
    10 in x 20 in x 1 in, 10 in x 24 in x 1 in, 11.5 in x 11.5 in x 1 in, 12 in x 12 in x 1 in, 12 in x 20 in x 1 in, 12 in x 24 in x 1 in, 12 in x 25 in x 1 in, 12 in x 30 in x 1 in, 12 in x 36 in 1 in, 12 in x 36 in x 1 in, 14 in x 14 in x 1 in, 14 in x 18 in x 1 in, 14 in x 20 in x 1 in, 14 in x 24 in x 1 in, 14 in x 25 in x 1 in, 14 in x 30 in x 1 in, 14 in x 36 in x 1 in, 15 in x 20 in x 1 in, 16 in x 25 in x 1 in, 16 in x 16 in x 1 in, 16 in x 20 in x 1 in, 16 in x 20 in x 2 in, 16 in x 24 in x 1 in, 16 in x 24 in x 2 in, 16 in x 25 in x 1 in, 16 in x 25 in x 2 in, 16 in x 25 in x 4 in, 16 in x 25 in x 5 in, 16 in x 30 in x 1 in, 16.5 in x 21.5 in x 1 in, 17 in x 21 in x 1 in, 17.5 in x 22 in x 1 in, 17.5 in x 23.5 in x 1 in, 17.5 in x 29.5 in x 1 in, 18 in x 18 in x 1 in, 18 in x 20 in x 1 in, 18 in x 24 in x 1 in, 18 in x 25 in x 1 in, 18 in x 30 in x 1 in, 19.5 in x 19.5 in x 1 in, 19.5 in x 23.5 in x 1 in, 19.5 in x 29.5 in x 1 in, 19.875 in x 21.5 in x 1 in, 20 in x 20 in x 1 in, 20 in x 20 in x 2 in, 20 in x 20 in x 4 in, 20 in x 22 in x 1 in, 20 in x 24 in x 1 in, 20 in x 25 in x 1 in, 20 in x 25 in x 2 in, 20 in x 25 in x 4 in, 20 in x 25 in x 5 in, 20 in x 30 in x 1 in, 20 in x 36 in x 1 in, 21 in x 21 in x 1 in, 21.5 in x 23.5 in x 1 in, 21.5 in x 24 in x 1 in, 22 in x 22 in x 1 in, 23.5 in x 23.5 in x 1 in, 24 in x 24 in x 1 in, 24 in x 30 in x 1 in, 25 in x 25 in x 1 in, 30 in x 60 in x 1 in
    Thickness
    1 in, 2 in, 4 in, 5 in
    Change Reminders
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    • Filtrete Change Reminders

      Your lifestyle affects how quickly your home's air filter expires. Let us help you create a healthier home environment by taking it's characteristics into account.

      Get custom filter change reminders and personalized home tips based on your home environment by signing up for a Filtrete change reminder program.

    Customer Reviews
    Filtrete™ Allergen Defense Air Filters is rated 4.7 out of 5 by 452.
    Rated 5 out of 5 by from Trust my Filtreate Filter I have used nothing but Filtrete Allergen Filters for the past 15 years. I trust them to keep us healthy and allergy free in the home. My wife has asthma so its imperative we have the best air filter we can get. That is why I buy Filtrete.
    Date published: 2019-08-29
    Rated 4 out of 5 by from Good quality I bought this because I wasn't satisfied with the flimsy green filters we were getting. This filter seems to "grab" a lot more than what the cheap ones did. I just found out that my toddler son has many environmental allergies so I will be getting the higher grade Filtrete filter when this one is ready for replacement.
    Date published: 2019-08-27
    Rated 4 out of 5 by from Traps dust!! We live on a dirt road and apparently we get more dust coming in our house than you would think! This filter works great, however because where we live it lasts about two months instead of three! Well worth the clean air tho!!
    Date published: 2019-08-21
    Rated 5 out of 5 by from Always buy Filtrete Since owning home, always buy Filtrete brand! Swear by the brand to make home clean!
    Date published: 2019-08-16
    Rated 5 out of 5 by from Great Bought the 20x20 and it’s been a great filter. Especially since we have two cats in the house.
    Date published: 2019-08-08
    Rated 5 out of 5 by from Great Filter I am so happy I bought this filter. It works great in my home. My husband even noticed the difference
    Date published: 2019-08-06
    Rated 5 out of 5 by from Great app I’m so happy with the app that lets you know when it’s time to change filters and also the periodic rebates that are available
    Date published: 2019-08-02
    Rated 4 out of 5 by from Claens the air good Exchange it on a 3 month rotation, generally use Allogen defense
    Date published: 2019-07-31
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