• 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, Grit, 800
    Overall Thickness (Imperial)
    1 in, 2 in, 4 in, 5 in
    Package Contents
    1 Pack, 2 Pack, 3 Pack, 4 Pack, 6 Pack
    Size (Imperial)
    11.5 in x 11.5 in, 12 in x 12 in, 14 in x 14 in, 16 in x 16 in, 18 in x 14 in, 18 in x 18 in, 19.5 in x 19.5 in, 20 in x 10 in, 20 in x 12 in, 20 in x 14 in, 20 in x 15 in, 20 in x 16 in, 20 in x 18 in, 20 in x 20 in, 21 in x 17 in, 21 in x 21 in, 21.5 in x 16.5 in, 21.5 in x 19.875 in, 22 in x 17.5 in, 22 in x 20 in, 22 in x 22 in, 23.5 in x 17.5 in, 23.5 in x 19.5 in, 23.5 in x 21.5 in, 23.5 in x 23.5 in, 24 in x 10 in, 24 in x 12 in, 24 in x 14 in, 24 in x 16 in, 24 in x 18 in, 24 in x 20 in, 24 in x 21.5 in, 24 in x 24 in, 25 in x 12 in, 25 in x 14 in, 25 in x 16 in, 25 in x 18 in, 25 in x 20 in, 25 in x 25 in, 29.5 in x 17.5 in, 29.5 in x 19.5 in, 30 in x 12 in, 30 in x 14 in, 30 in x 16 in, 30 in x 18 in, 30 in x 20 in, 30 in x 24 in, 36 in x 12 in, 36 in x 14 in, 36 in x 20 in, 60 in x 30 in
    Change Reminders
    • 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 484.
    Rated 5 out of 5 by from Well built I have never been worried about the airflow plus the filtration effects. Seems to work great every time that I need to do the 90 day replacement.
    Date published: 2020-09-11
    Rated 1 out of 5 by from Marked Correctly? I’ve bought many brands of ac filters for decades and never had the support webbing of the filter on the upstream side of the filter (according to air flow direction arrow). I don’t know whether to trust my decades worth of experience or trust the air flow direction arrow.
    Date published: 2020-09-06
    Rated 4 out of 5 by from I got this 4 months ago and ready to change it again, only problem I have is I need 6 for my house!
    Date published: 2020-09-04
    Rated 5 out of 5 by from air inside house is clean I love filtrete 3mo. filters. very unnoticeable difference after using those cheap 2 or 3 dollar filters are a waste of time and money
    Date published: 2020-09-03
    Rated 5 out of 5 by from Performs as advertised Bought this product due to a grandchild’s allergies. She does not sneeze or cough at my house.
    Date published: 2020-09-02
    Rated 5 out of 5 by from Clean feeling Trying this filter for the first time and my home’s air feels so clean.
    Date published: 2020-08-31
    Rated 1 out of 5 by from Allergen Defense Air filter does not fit !!! I was using Filtrette Clean Living filters for years and was happy with its performance. Having read about the higher filtration levels of Allergen Defense, I decided to order this one for my 20X25X1 opening of my AC unit. To my surprise I was not able to fit it into the hole into which the Clean Living filter entered easily. The Allergen Defense is taller than Clean Living filter of the same posted sizes 20X25X1. Please advise what could be done. Thanks!
    Date published: 2020-07-17
    Rated 5 out of 5 by from Wow factor I bought this and notice a big difference in the air quality flow and sound of my AC. I definitely will buy again instead of my old brand.
    Date published: 2020-06-22
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