Home > Air Filters > Nispira 4 Replacement HEPA Filter + 4 Charcoal Booster Pre Filter Compatible with Holmes AER1 Total Air Filter, HAPF30AT for Purifier HAP242-NUC

Charcoal Booster Pre Filter Compatible

Holmes Aer1 Total Air Filter, The Air Quality, Carbon Pre Filter, 4 Premium Hepa Filter, Nispira 4 Replacement Hepa Filter

H&F Rating 260 reviews
All Buying Options
Add to Wishlist
$2 off

 on Amazon

Get it on prime

What We Like

  • Traps 99.97 airborne allergens and contaminants from the air
  • Helps deodorize any unfavorable household smell
  • Compatible with aer1 ready air purifiers


  • Noisy

Products Similar to Nispira Air Filters

About Charcoal Booster Pre Filter Compatible

4 Premium HEPA filter + 4 sheets of carbon pre-filters. Compatible with aer1 ready air purifiers. HEPA filters remove up to 99.97 percent of airborne particles as small as 0.3 microns. 4 premium HEPA filters and 4 Carbon filters compatible with Holmes and Bionaire air purifiers.

Results of our analysis:

We analyzed 209,584 reviews for 162 products in the Air Filters category.

We then analyzed 260 reviews for this product. None were recent.

Around 91% of reviews were positive and about 5% were negative.

Final Score:

9.68 out of 10, based on these factors:

  • Compatibility
  • Easy to install
  • Easy to maintain
  • Filtration
  • Longevity
  • Overall satisfaction
  • Packaging
  • Quality of material
  • Size
  • Value for money
  • What buyers say about Charcoal Booster Pre Filter Compatible

    I ordered these for my daughter's apartment when the fires were raging and they worked well, even though we removed them after a few months because we realized how much was flying in the air.

    The filters make it easier for the cat to sleep as they keep the dust and dander at a minimum.

    I have found that these replacement filters work just as well as the ones from theHolmes brand and that I don't have to change them very often.

    These replacements fit my air purifiers well and were a great price.

    This is just as good as any name brand I have tried. I also love that it comes with the extra black particle catchers.

    Common Questions


    Does it work for HAP9241?


    I have that air purifier that will fit any air purifier that has an AER filter.


    Does the black filter go on before the main filter?


    The black filter goes above the white main filter.


    Is this true hepa filters or hepa type filters?


    I don't know if this is a hepa filter or not, but I have used these Nispira filters many times and they seem to work well.


    Does the filter have fiberglass in it?


    Paper is what it's made out of.


    Did anyone notice a strong chemical smell with the aftermarket filters?


    I've been using them for a couple years and I don't smell anything.

    Do you like this review?