portable air filter

Glasfloss 20x20x2 MERV 10 Pleated 2" Inch AC Furnace Air Filters. Quantity 3. Actual Size: 19-1/2 x 19-1/2 x 1-3/4

VEVOR Return Air Filter Grille, Fits W24 x H18 In Duct Opening, Filter Not Included, Return Air Vent Cover,Detachable Face/Door for 1 in Filters,White

Filterbuy 17x19x1 Air Filter (1-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.00 x 19.00 x 0.75)

Filterbuy 21x21x1 Air Filter (4-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 20.88 x 20.88 x 0.75)

Filterbuy 13x24x1 Air Filter (1-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 13.00 x 24.00 x 0.75)

Simply 18x22x1 Air Filter, Merv 8, MPR 600, 6 Pack, Furnace Air Filter for HVAC (Actual Size: 17.75"x21.75"x0.75") DUST, Pet, & Allergy Control

Filterbuy 17.25x26x2 Air Filter (5-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.25 x 26.00 x 1.75)

Filterbuy 9.5x23.5x1 Air Filter (2-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 9.50 x 23.50 x 0.75)

Filterbuy 20x25x6 Air Filter (2-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters for Aprilaire Space-Gard 201 / 2200 / 2250 & Lennox

Filterbuy 14x36x1 Air Filter (4-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 13.50 x 35.50 x 0.75)

Filterbuy 10x16x1 Air Filter (2-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 9.50 x 15.50 x 0.75)

Filterbuy 12.5x21x4 Air Filter (4-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 12.50 x 21.00 x 3.63)

Filterbuy 20x36x1 Air Filter (2-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 19.75 x 35.75 x 0.75)

Mann+Hummel 20x20x1 MERV 8 Pleated HVAC AC Furnace Air Filters. 6 Pack. (Exact Size: 19.5 x 19.5 x 0.75 Inches)

Filterbuy 17x21x1 Air Filter (4-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 16.50 x 20.50 x 0.75)

Filterbuy 16x25x5 Air Filter (4-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters for Amana, Coleman, Goodman, Maytag, York, & More