air filer

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1,000+ results for “air filter”

$33.99

Aerostar 20x20x1 MERV 6 Pleated Air Filter, AC Furnace Air Filter, 6PK (Actual Size: 19 3/4" x 19 3/4" x 3/4")

Aerostar

$43.97 - $79.91

Aerostar AC Furnace Air Filter - Health - MERV 13 - Box of 6

Aerostar

4.2(20)

$49.97 - $90.16

Simply Air Filter, MERV 11, 8 Pack, Furnace Air Filter for HVAC

Simply

4.6(609)

Loved for: quality construction

$33.98

Filterbuy 16x22x1 Air Filter (2-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 15.50 x 21.50 x 0.75)

Filterbuy

$60.12

reg $81.99

Sale

AAF Flanders EZ Flow II 20 in. W X 20 in. H X 1 in. D Fiberglass 4 MERV Air Filter (Pack of 12)

AAF Flanders

$39.98

Filterbuy 16x16x1 Air Filter (2-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 15.75 x 15.75 x 0.75)

Filterbuy

4.7(9769)

Loved for: high quality

$51.95

reg $63.58

Sale

Mann+Hummel 19-7/8 x 21-1/2 x 1 MERV 8 Pleated HVAC AC Furnace Air Filters. 6 Pack. (Exact Size: 19.88 x 21.5 x 0.75 Inches)

Mann+Hummel

$49.96

Filterbuy 25x25x1 Air Filter (4-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 24.50 x 24.50 x 0.75)

Filterbuy

4.7(20501)

$55.90

VEVOR Return Air Filter Grille, Fits W20 x H30 In Duct Opening, Filter Not Included, Return Air Vent Cover,Detachable Face/Door for 1 in Filters,White

VEVOR

$87.96

Filterbuy 20x30x2 Air Filter (4-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 19.75 x 29.75 x 1.75)

Filterbuy

4.6(1238)

$33.99

Filterbuy 10x30x1 Air Filter (1-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 9.50 x 29.50 x 0.75)

Filterbuy

4.7(20501)

$52.98

Filterbuy 21x23.25x1 Air Filter (3-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 21.00 x 23.25 x 0.75)

Filterbuy

Guests also ask:

How long do air purifier filters typically last before they need replacement?

Most listings report a typical replacement interval of about 12 months, while at least one model specifies a 9‑month interval. Check your specific model's documentation and consider factors such as runtime, indoor air quality, and filter type, which can shorten or extend filter life.

What types of filters do air purifiers commonly use?

Common filter types across the results are HEPA (HEPA‑grade) filters, activated carbon (carbon) filters, and prefilters. HEPA filters are used for particle capture, activated carbon targets odors and some VOCs, and prefilters trap larger debris; many units combine two or more of these layers.

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