4 Replacement Carbon Booster Filter For Holmes Total Air Purifier Aer1 Series HAP242-NUC,
4 Replacement Carbon Booster Filter For Holmes Total Air Purifier Aer1 Series HAP242-NUC,
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4 Replacement Carbon Booster Filter For Holmes Total Air Purifier Aer1 Series HAP242-NUC,

3.8 stars out of 24 reviews
(3.8)|
24 ratings

Key item features

  • Premium Filtration: Includes 4 premium carbon filters designed to purify air by reducing odors and particulates.
  • Odor Elimination: Activated carbon effectively absorbs and eliminates odors from pets, nurseries, kitchens, garbage, and litter boxes.
  • Holmes Compatibility: Usable with various Holmes units including HAP242-NUC, HAP240, HAP412, HAP422, HAP706, HAP716, HAP9240, HAP9412, and HAP9422.
  • Bionaire Compatibility: Compatible with Bionaire units such as BAP260, BAP815, BAP825, BAP9200, BAP9700, BAP520, BAP1412, BAP1502, BAP1525, BAP1700, and BAP8500.
  • Filter Dimensions: Each filter measures 9.5 x 4 x 0.25 inches, suitable for specified air purifier models.
  • Model Reference: Also compatible with Holmes Air Purifier models HAP2400, HAP1200, and Bionaire Purifier models with Model AOR31-U.
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Current price is $9.99
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3.8 out of 5 stars
stars24 ratings10 reviews
How item rating is calculated
  1. 5 stars54% (13)
  2. 4 stars17% (4)
  3. 3 stars0% (0)
  4. 2 stars8% (2)
  5. 1 star21% (5)
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Showing 1-3 of 10 reviews

Mar 21, 2026
Ann
Top Reviewer
Sold byNispiraDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Ar

They are recommeded by instructions for my Air cleaner which I change with my air filter every three months. I still have my allergies but I'm sure it makes a difference.

Incentivized Review
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Mar 15, 2026
Wally
Sold byNispiraDelivered byWalmart
5 out of 5 stars review

Verified Purchase

great carbon filter

This carbon filter fits perfectly over the filter, so you don't have to change it so often. worth the price.

Incentivized Review
Helpful?3UVWALWKEG2V328792287
Sep 27, 2020
JohnJ
5 out of 5 stars review

Verified Purchase

Wouldn't Filter Without These

I love these pre filters, as they prolong the life of my actual filters. I always use a pre filter with any filter. These help me prolong the life of the actual filter by a least a month. I can generally get a months of use from the pre filter and 2-3 months out of any filter. What i like about these, is that they trap most of the particulates prior to clogging up the main filter. Weekly I use canned air to clean the pre filter and main filter.

Helpful?3UVWALWKEG2V328792287