air filer

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1,000+ results for “air filter”

$79.92

Filterbuy 19.5x24.5x1 Air Filter (12-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 19.50 x 24.50 x 0.75)

FilterbuyNew at

$73.95

Filterbuy 18x24x2 Air Filter (5-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.38 x 23.38 x 1.75)

Filterbuy

4.6(1238)

Loved for: quality filters

$29.99

Filterbuy 16x21x2 Air Filter (1-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 16.00 x 21.00 x 1.75)

Filterbuy

4.6(2076)

Loved for: high quality

$99.96

Filterbuy 17.5x17.5x1 Air Filter (12-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 17.50 x 0.75)

FilterbuyNew at

$18.95 - $21.60

Aerostar AC Furnace Air Filter - Dust - MERV 8 - Box of 2

Aerostar

4.2(12)

Loved for: effective dust capture

$42.95

reg $50.98

Sale

Mann+Hummel 16x25x4 MERV 8 Pleated HVAC AC Furnace Air Filters. 2 Pack. (Exact Size: 15.5 x 24.5 x 3.75 Inches)

Mann+Hummel

$92.99

Filterbuy 16x25x5 Air Filter (1-Pack), Pleated MERV 8 Odor Eliminator HVAC AC Furnace Air Filters Replacement for Trion Air Bear 255649-105 & More

Filterbuy

$248.57

reg $263.11

Sale

NaturalAire 24 in. W X 36 in. H X 1 in. D Synthetic 8 MERV Pleated Air Filter (Pack of 12)

Natural Ice

$57.96

Filterbuy 24x30x1 Air Filter (4-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 23.88 x 29.88 x 0.75)

Filterbuy

4.7(11802)

$37.98

Filterbuy 6x10x1 Air Filter (2-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 6.00 x 10.00 x 0.75)

Filterbuy

4.7(20501)

$84.02

reg $98.06

Sale

Pamlico Air 18 in. W X 20 in. H X 1 in. D Pleated 8 MERV Pleated Air Filter - Case of 12

Pamlico Air

$135.96

Filterbuy 16x25x4 Air Filter (6-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 15.50 x 24.50 x 3.63)

Filterbuy

4.4(3032)

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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