Leemone AER1 filter replacement for Holmes air purifier, 2 purple true filters and 4 carbon booster filters
Leemone Holmes Air Filter Replacement with Carbon Boosters, 2 Count
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Leemone Holmes Air Filter Replacement with Carbon Boosters, 2 Count

Key item features

  • Broad Compatibility: Compatible with a wide range of Holmes units including CAP531-U, HAP240, HAP412, HAP702, HAP1702, HAP2400, HAP9240, HAP9412, and HAP9422, as well as Bionaire units BAP260, BAP815, BAP9200, and BAP520.
  • Advanced Filtration: Features an H13 True HEPA filter that captures 99.97% of pollutants as small as 0.3 microns, such as dust and pet dander, ensuring the air purifier operates at full capacity.
  • Odor Absorption: Includes a carbon booster pre-filter designed to absorb household odors from pets, cooking, and smoking, while also trapping larger airborne contaminants like hair and lint.
  • Generous Packaging: Each package contains two True HEPA filters and four carbon booster pre-filters, designed to fit aer1 ready air purifiers.
  • Direct Replacement: Replaces A Filter, D Filter, and K Filter types, and is comparable to Holmes aer1 type total air filter models 30AT, 242-NUC, and 300AH-U4R.
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4.41974730931212 stars out of 5, based on 2138 seller reviews(4.4)
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Customer ratings & reviews

4.6 out of 5 stars
stars695 ratings198 reviews
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Reviews summary

Pros

  • : Offers affordable options with reasonable cost.
  • : Requires little to no effort or expertise.
  • : Made a significant difference in air purification.
  • : Fits various air purifier models.
  • : Provides a secure installation like original filters.

Cons

  • : Carbon filters may not fit perfectly, requiring adjustments.
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Showing 1-3 of 198 reviews

Oct 27, 2025
Denise
Item details
Color: Blue-Basic
Sold byLeemoneDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Review of filter for HEPA air purifier.

This was exactly what I have been looking for! My air purifier is fairly old, %26 I needed a new filter %26 the black sponge piece to replace an old one. However, they have become somewhat hard to find, %26 are too expensive when I do find them. These were not packaged in a commercially-designed box, but came in a plastic bag, put in a cardboard shipping box w/bubble padding %26 mailer. The price wasn't bad, %26 I ordered two. Will definitely order again, both for me, %26 for my mom, who has almost the exact same air purifier and needs a new filter %26 sponge, too. I wish the air purifiers used an easily washable filter %26 sponge, rather than disposable, one-time-use, non-washable ones, to prevent the added expense to replace them and the added waste to the environment. Mom %26 I both have many environmental allergies %26 respiratory illnesses, so the HEPA air purifier does help. Neither of us smoke or have pets, but the high humidity this year has caused a nasty, musty, wet odor in my condo. The new filter, some DampRid units in different rooms, %26 some Lysol disinfectant anti-mold/mildew spray helped a lot! In the pictures, you'll see I got 2 filters %26 4 of the black pieces. In the 3rd pic, you'll see the black pieces sent are NOT like the black sponge piece that was in the air purifier. So far, it seems ok, but I'm not sure exactly what those pieces do, so I can't say for sure. They are very thin, %26 almost like a firm felt.

Helpful?6CAAS5Z4DJ1G2496553653
Feb 15, 2026
Walmart customer
Item details
Color: Blue-Basic
Sold byLeemoneDelivered byWalmart
5 out of 5 stars review

Verified Purchase

No Issues -- use them all the time

We love the Holmes air filters -- 10 years ago bought two Honeywels after two weeks the bearing squeaked, I returned it and bought the Holmes, we have two of them for 10 years and replace a lot of filters in Dusty Arizona. I never had any issues iwith the Walmart Filters.

Helpful?6CAAS5Z4DJ1G2496553653
Nov 16, 2025
Janet
Top Reviewer
Item details
Color: Blue-Basic
Sold byLeemoneDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Boss Hepa Filter!!!

When you have a compromised immune system, suffer from respiratory conditions (including pet dander, allergies, etc.) or are just virus and bacteria conscious, like me (Retired RN), who battles MS with immunocompromised health), this is perfect. It is slender (fits anywhere), quiet, and the validation on what the air sanitizing qualities are (zaps/kills active virus/bacteria in the air) evident when checking the carbon top filter. I have two other air sanitizers (they are not filters just "zappers") and two (smaller/compact) Hepa Filter units that run 24/7). All this in a 460 sq ft apt. due to my inability to receive vaccinations (I wear custom silk masks when I know I should). I have remained COVID free with the aforementioned preventive actions; this is the best full-size unit thus far. If you properly take care of your unit (check your filters frequently), it will certainly take care of you.

Helpful?6CAAS5Z4DJ1G2496553653