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Deal.ai › Filters
Filtrete
Filtrete Allergen Defense Filter

Filtrete Allergen Defense Filter

3.6(589 ratings)

Best price now

$19.79at TargetObserved at 9:47 PM

51% under what the other stores charge

Compared across 5 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

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Our take on the Filtrete Allergen Defense Filter

The Filtrete Allergen Defense is a pleated HVAC filter rated MERV 11 and 1000 MPR, made to trap lint, pollen, dust and pet dander. It uses a 3-in-1 pleated polypropylene media in a cardboard frame and is certified asthma and allergy friendly. Filtrete rates it for 12 months of use, though most homes will need a change sooner. It is a mid-tier filter, not a true HEPA replacement.

Best forHouseholds with pollen or pet allergiesHomes with standard 16x25x4 filter slotsOwners who want a 12-month filter intervalRenters replacing builder-grade filters
Pros
  • MERV 11 and 1000 MPR catch fine particles like pollen and pet dander
  • Certified asthma and allergy friendly
  • Deep-pleat 4-inch design holds more dust than 1-inch filters
  • Rated for up to 12 months of service
  • Widely stocked in the 16x25x4 size
Cons
  • Higher MERV restricts airflow more than basic filters
  • Cardboard frame can warp or crush if the slot is tight
  • 3.6 out of 5 from 589 ratings suggests uneven satisfaction
  • Not HEPA; very fine particles still pass through
  • Price per filter is higher than low-MERV options

Filtrete Allergen Defense Filter prices at every store

  • TargetNew

    In stock

    $19.79+ $5.99 shippingObserved at 9:47 PM
    Visit Target
  • Sylvane.comNew

    In stock

    $34.99Observed at 9:47 PM
    Visit Sylvane.com
  • WalmartNew

    In stockSold by M7 Ocean

    $40.63Observed at 9:47 PM
    Visit Walmart
  • eBayNew

    In stockSold by eio-electronicinventoryonline

    $45.58Observed at 9:47 PM
    Visit eBay
  • R.S. HughesNew

    Out of stock

    $28.06Observed at 9:47 PM
    Visit R.S. Hughes

Also available at

  • eBayCheck price at eBay
  • Do it BestCheck price at Do it Best
  • RunningsCheck price at Runnings
  • vipoutlet.comCheck price at vipoutlet.com
  • W.B. MasonCheck price at W.B. Mason
  • WebstaurantStore.comCheck price at WebstaurantStore.com

Store links may earn us a commission. Some prices via Klarna.

Filtrete Allergen Defense Filter price history

Lowest price we've seen: $19.00 on Nov 8 at vipoutlet.com. Tracked across 11 stores since Nov 8.

What reviewers say

  • 3.6 / 5589 ratings

Ratings are middling at 3.6 out of 5 across 589 ratings. Buyers who like it cite allergen relief and long change intervals; complaints center on airflow restriction and fit.

What people mention
  • AirflowCriticisedSome owners say the MERV 11 media cuts airflow and makes the system work harder.
  • Allergen reliefPraisedAllergy sufferers report less dust and pollen buildup in the home.
  • FitMixedThe 16x25x4 size fits standard slots, but some frames arrive bent or sit loosely.
  • LifespanMixedSome get close to a year of use; others find it loaded with dust in a few months.
  • BuildMixedPleats hold up well, but the cardboard frame is the weak point.

Specifications

Filtration Efficiency
Captures up to 2X more microparticles than MERV alone
MERV Rating
MERV 11
Filtration Type
Allergen Reduction, Air Filter
Filter Media
Pleated
Filtration Layers
3-in-1 technology
Particle Size Captured
Particles such as lint, pollen, dust, and pet dander
Air Flow Rate
Dirty filter slows down airflow

Questions and answers

Is MERV 11 enough for allergies?
It captures pollen, dust, lint and pet dander and is certified asthma and allergy friendly. It is not HEPA, so it will not stop the smallest particles.
How often should I change it?
Filtrete rates it for 12 months, but homes with pets or heavy dust often need a change every 3 to 6 months. Check it monthly at first.
Will it restrict my HVAC airflow?
MERV 11 is more restrictive than a basic fiberglass filter. If your system is already marginal, a lower MPR filter may be safer.
What size is this filter?
It is 16 x 25 x 4 inches, a deep-pleat size for slots that take 4-inch filters. Measure your slot before ordering.
Is it worth the price over a cheap filter?
If allergies or pets are the reason you are filtering, the extra particle capture is worth it. For basic dust control, a cheaper low-MERV filter works.
Where is the Filtrete Allergen Defense Filter cheapest?
At Target, for $19.79, 51% under what the other stores charge, as of our latest check.
What do buyers say about the Filtrete Allergen Defense Filter?
Rated 3.6 out of 5 from 589 ratings.
Where can I buy the Filtrete Allergen Defense Filter?
10 stores we checked sell it, including Target, R.S. Hughes, Sylvane.com, Walmart, eBay.

Stores we've priced the Filtrete Allergen Defense Filter at

  • Fleet Farm deals and prices
  • Runnings deals and prices
  • Target deals and prices
  • vipoutlet.com deals and prices
  • Walmart deals and prices
Service Life
12 Month
Filter Height
4 in
Filter Length
25 in
Filter Width
16 in
Filter Lifespan
12 months
Material Type
polypropylene
Typical Users
UNISEX, ADULT
Shape
Deep Pleat
Frame Material
Cardboard
Style
Pleated
Color
White
Certification
CERTIFIED asthma and allergy-friendly
Manufacturer
Filtrete
Country Of Origin
Mexico