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Box Fan Air Filters of 2025

Save up to 29% off
  • Best Choice

    1

    Filter Box 8 inches with Efficient Box Fan Filter, Duct Filters Box for Fresh Air Intake and Improved Airflow, HVAC Filter Box for Family, Factory, Minerals, Planting Tents
    AITECAC

    Filter Box 8 inches with Efficient Box Fan Filter, Duct Filters Box for Fresh Air Intake and Improved Airflow, HVAC Filter Box for Family, Factory, Minerals, Planting Tents

    9.8
    Exceptional
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  • Value for Money

    2

    Filter Box 10 inches with Efficient Box Fan Filter, Duct Filters Box for Fresh Air Intake and Improved Airflow, HVAC Filter Box for Family, Factory, Minerals, Planting Tents
    AITECAC

    Filter Box 10 inches with Efficient Box Fan Filter, Duct Filters Box for Fresh Air Intake and Improved Airflow, HVAC Filter Box for Family, Factory, Minerals, Planting Tents

    29% Off
    9.7
    Exceptional

  • 3

    Lasko Air Flex 20" 2-in-1 Box Fan and Air Purifier in One with MERV10 Air Purifying Filter for Cleaner and Cooling Breeze, 3 Speeds, Steel Body, FF305
    Lasko

    Lasko Air Flex 20" 2-in-1 Box Fan and Air Purifier in One with MERV10 Air Purifying Filter for Cleaner and Cooling Breeze, 3 Speeds, Steel Body, FF305

    9.6
    Exceptional
    Our Rating

  • 4

    Aerostar 20x20x1 MERV 8 - 6 Count - High Efficiency Pleated HVAC, Furnace & Air Conditioner Filters - Removes Dust, Lint, Mold & Allergy-Causing Pollen
    Aerostar

    Aerostar 20x20x1 MERV 8 - 6 Count - High Efficiency Pleated HVAC, Furnace & Air Conditioner Filters - Removes Dust, Lint, Mold & Allergy-Causing Pollen

    • size:20x20x1
    • material:100% synthetic media
    • usage:Filter microscopic particles
    • special features:Electrostatic media
    • dimensions:19.75 x 19.75 x 0.75 inches
    9.3
    Excellent
    Our Rating

  • 5

    BNX TruFilter 20x20x1 MERV 13 (4-Pack) AC Furnace Air Filter - MADE IN USA - Electrostatic Pleated Air Conditioner HVAC AC Furnace Filters - Removes Pollen, Mold, Bacteria, Smoke
    BNX

    BNX TruFilter 20x20x1 MERV 13 (4-Pack) AC Furnace Air Filter - MADE IN USA - Electrostatic Pleated Air Conditioner HVAC AC Furnace Filters - Removes Pollen, Mold, Bacteria, Smoke

    20% Off
    9.0
    Excellent
    Our Rating
  • See Today’s Deals & Prices

  • 6

    ZYRELYNX Box Fan Filter Clips, Air Filter Holder Compatible with 20 Inch Box Fan Furnace Filter, White, 1 Set
    ZYRELYNX

    ZYRELYNX Box Fan Filter Clips, Air Filter Holder Compatible with 20 Inch Box Fan Furnace Filter, White, 1 Set

    8.7
    Very Good

  • 7

    Filterbuy 20x20x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 x 19.50 x 0.75 Inches)
    Filterbuy

    Filterbuy 20x20x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 x 19.50 x 0.75 Inches)

    • size:4 Count Pack of 1
    • material:Polyester, Aluminum, Plastic
    • usage:Furnace, air conditioner
    • special features:Electrostatically charged, pleated
    • dimensions:19.5 x 19.5 x 0.75 inches
    8.6
    Very Good
    Our Rating

  • 8

    LotFancy 20x20x1 Air Filter MERV 13 Pet Smoke Smog Allergens Defense (4-Pack) Pleated HVAC Furnace Air Filters, Replacement for Home AC & Heating Systems, Actual Size: 19.75" x 19.75" x 0.75"
    LotFancy

    LotFancy 20x20x1 Air Filter MERV 13 Pet Smoke Smog Allergens Defense (4-Pack) Pleated HVAC Furnace Air Filters, Replacement for Home AC & Heating Systems, Actual Size: 19.75" x 19.75" x 0.75"

    14% Off
    8.5
    Good

  • 9

    Amazon Basics 20x20x1 Air Filter 6 Pack, MERV 11 AC Furnace Filters (Actual Size: 19.75 x 19.75 x .75)
    Amazon Basics

    Amazon Basics 20x20x1 Air Filter 6 Pack, MERV 11 AC Furnace Filters (Actual Size: 19.75 x 19.75 x .75)

    8.3
    Good

  • 10

    Air Purifiers for Home Large Room up to 2000ft², H13 HEPA Air Filter for Pets Hair Dander Smoke Pollen Dust, Non-Ozone, Portable Air Purifiers for Bedroom Office Living Room, E-300L, White
    MOOKA FAMILY

    Air Purifiers for Home Large Room up to 2000ft², H13 HEPA Air Filter for Pets Hair Dander Smoke Pollen Dust, Non-Ozone, Portable Air Purifiers for Bedroom Office Living Room, E-300L, White

    23% Off
    • Noise Level:As low as 20 dB
    • Particle Size:0.3 microns
    • CADR:High CADR index
    • Timer:2H/4H/8H options
    • Filtration System:3 stages filtration
    8.2
    Good
    Our Rating

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