Upgrade AER1 Filter Replacement for Holmes Air Purifier, 2 True Filters + 4 Carbon Booster Filters, purple

This replacement filter and pre filter from Walmart were a perfect match for my air cleaner unit. Although identical to dirty filter I took out, it seemingly fit better into the track and the prefilter foam matched the poke-thru plastic pins exact. Highly recommend you keep maintenance up on your indoor air cleaner per manufacturer instructions. You'll find you get more volume and unquestionable cleaner air instead of blowing your dust around with a neglected unit.

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.