• 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
    Overall Thickness (Imperial)
    1 in, 2 in, 4 in, 5 in
    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
    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 459.
    Rated 5 out of 5 by from One Great Filter What a great product! Can really feel and smell the fresh difference this filter has made.
    Date published: 2019-11-08
    Rated 5 out of 5 by from Choice of MERV ratings and size Nominal size of HVAC filters is a problem for some users. The problem is made worse by the lack of standardization in return air grille sizes. For example, filter manufacturers print 18"X18" on a filter, but the nominal size can make it impossible to use them in a return air grille, if the builder bought cheap odd-size grilles. For the past two decades, I have had no problem with the Filtrete size in my house. Not true for other filters I tried. I have a large return air grille that I have to tape two 18X18 together to use. 18X36 is not a common size to find and I do not think Filtrete makes this size (with 18X24 the largest I could find). Once I bought another big-name brand. After taping the two together, the length of the filter was too short.
    Date published: 2019-11-01
    Rated 1 out of 5 by from doesn't fit I have no idea what to do with this BETTER AND HIGHER END filter... this is the first time a 16 x 20 x 1 inch filter purchased at the local hardware store DOESN'T FIT. I have an AC unit with a more precise slot in which to insert the filter. No matter how I try, it just won't slide down the frame as required. I can't return the unit for a lower grade filter because I didn't save the receipt.
    Date published: 2019-10-13
    Rated 5 out of 5 by from Love this!!! We have been using filtrete for a a year and love it!!
    Date published: 2019-10-04
    Rated 5 out of 5 by from Love this!!! We have been using filtrete for a a year and love it!!
    Date published: 2019-10-04
    Rated 5 out of 5 by from Long time customer Quality product at competitive price. I have tried a number of different products over the years . Filtrete outperforms them all.
    Date published: 2019-10-04
    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
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