Top 9 21.5×23.25×1 Air Filter – Home Air Purifier Parts & Accessories

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1. Purafilter

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Purafilter Gold 21.5x23.25x1 Actual Size MERV 11 1-Inch Filter 4 Pack

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Purafilter #ad - High-efficiency air filter. Pack of 4 Filters. Actual size 21. 5 x 23. 25 x 1. Nominal size 21. 5x23. 25x1. Each filter lasts up to 90 days. Traps micro-particles associated with allergies like ragweed and pollen. Merv 11 rated.
BrandPurafilter #ad
ManufacturerDupont #ad
Height1 Inches
Length21.5 Inches
Weight0.75 Pounds
Width23.25 Inches
Part NumberKG21.5X23.25X1A
ModelKG21.5X23.25X1A

2. DuPont

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21.5x23.25x1 Actual Size DuPont High Allergen Care Electrostatic Air Filter 2 Pack

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DuPont #ad - Made in the USA! Size of filter is 21. 5 x 23. 25 x 075. Merv 11 rated. Each filter lasts up to 90 days. Up to 30 times more efficient at reducing allergens than ordinary fiberglass filters. Reduces: pollen, smoke, mold spores, pet dander, lint, dust, odors and ragweed.
BrandDuPont #ad
ManufacturerDUPONT #ad
Height1 Inches
Length21.5 Inches
Width23.25 Inches
Part NumberKB21.5X23.25X1A_2

3. Accumulair

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Accumulair Platinum 21.5x23.25x1 Actual Size MERV 11 Air Filter/Furnace Filters 6 pack

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Accumulair #ad - Typically ideal for homes with pets, superior commercial buildings, restaurants, superior residential buildings, and workplaces.21. 5x23. 25x1 actual size merv 11 - tested and rated according to ASHRAE Standard 52. 2. Tribo-electric synthetic media provides high filtration efficiency, low air resistance, and is hydrophobic does not absorb moisture. Enhance air quality for up to 3 months. Captures up to 94% or more of airborne contaminants such as dust, small fibers, cement dust, lead dust, standing dust, dust mite debris, lint, pet dander, and other airborne contaminants.
BrandAccumulair #ad
ManufacturerAccumulair® #ad
Height0.75 Inches
Length21.5 Inches
Weight1.25 Pounds
Width23.25 Inches
Part Number886566136632
Model886566136632

4. Accumulair

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Accumulair Diamond 21.5x23.25x1 Actual Size MERV 13 Air Filter/Furnace Filter 3 Pack

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Accumulair #ad - Each filter lasts up to 3 months. 3 pack of Air Filters. Actual size of filter: 21. 5 x 23. 25 x 075. Merv 13 rating. Uniform pleat shape enhances dust holding capacity and maximizes air flow. Pleated panel filtering media suited for capturing airborne particles.
BrandAccumulair #ad
ManufacturerAccumulair #ad
Part NumberFD21.5X23.25A_3
ModelFD21.5X23.25A_3

5. Filter King

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Increases Air Quality, Filter King 21.5x23.25x1 Air Filters | 4 Pack | MERV 8 HVAC Pleated AC Furnace Filters, Allergen Reduction, Protection Against Pollen

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Filter King #ad - Slide the filter into place bearing in mind the arrows telling you which direction the filter needs to be facing. Merv 8 – good for trapping small particles such as pollen, pet dander, dust, and smoke. However, while the location is different the purpose of cleansing the air you breathe is the same.

When to replace – it is recommended to change the hvac/furnace filter every 1-3 months. Merv 8 air filters removes small pollutant particles such as humidifier dust, auto emissions and legionella. How to install – remove old filter carefully, so no dirt or debris is released into the air. Air systems like hvac’s or furnaces need filters in place to keep the incoming airflow free of intruding particles.

Confirm replacement filter is the same as the old one. Made to protect your homes accommodating air systems from incoming airborne particles. Replacing air filters can save you thousands of dollars in repairs and can lower your monthly energy bills. Save money – our filters can not only be good for your health but also your wallet. Air filters in different environments block airborne irritants and prevent complications resulting from lack of filtration. 21. 5x23.
BrandFilter King #ad
ManufacturerFIlter king #ad
Height1 Inches
Length21.5 Inches
Weight1.5 Pounds
Width23.25 Inches
Part NumberFKFB21.5X23.25A
ModelFKFB21.5X23.25A

6. Accumulair

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Accumulair Gold 21.5x23.25x1 Actual Size MERV 8 Air Filter/Furnace Filters 4 pack

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Accumulair #ad - Also traps most large allergens including pollen and lint. Traps most large allergens including pollen and lint. 4 pack of Air Filters. Merv 8 rating. Actual size of filter: 21. 5 x 23. 25 x 075. Electrostatic charge captures airborne allergens SMALLER THAN 1 micron including fine dust, dander, mold, smoke, pet dander and dust mites. Each filter lasts up to 3 months.
BrandAccumulair #ad
ManufacturerAccumulair #ad
Part NumberFB21.5X23.25A_4
ModelFB21.5X23.25A_4

7. Accumulair

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Accumulair Diamond 21.5x23.25x1 Actual Size MERV 13 Air Filter/Furnace Filters 6 pack

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Accumulair #ad - Enhances indoor air quality for up to 3 months. Typically ideal for homes with pets, superior commercial buildings, hospital/healthcare offices, superior residential buildings, restaurants, and workplaces.

21. 5x23. 25x1 actual size merv 13 - tested and rated according to ASHRAE Standard 52. 2. Tribo-electric synthetic media provides high filtration efficiency, low air resistance, and is hydrophobic does not absorb moisture. Also consider for indoor smoking places. Captures up to 98% or more of airborne contaminants such as dust, insecticide dust, smog, tobacco smoke, lead dust, small fibers, standing dust, fine powders, dust mite debris, cement dust, auto emissions, lint, fine powders, pet dander, and other airborne contaminants.
BrandAccumulair #ad
ManufacturerAccumulair #ad
Height23.25 Inches
Length21.5 Inches
Weight21.5 Pounds
Width0.75 Inches
Part NumberFD21.5X23.25A_6
ModelFD21.5X23.25A_6

8. Accumulair

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Accumulair Gold 21.5x23.25x1 Actual Size MERV 8 Air Filter/Furnace Filter 2 Pack

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Accumulair #ad - Enhances indoor air quality for up to 3 months. Typically ideal for residential homes, small commercial businesses, and workplaces desiring to reduce common airborne containments. Pleated electrostatic media provides a high filtration efficiency without comprising your system's airflow. Captures up to 76% of common airborne particles such as dust, dust mite debris, small fibers, lint, cement dust, standing dust, and other airborne contaminants.21. 5x23. 25x1 actual size merv 8 – tested and rated according to ASHRAE Standard 52. 2.
BrandAccumulair #ad
ManufacturerAccumulair #ad
Height0.75 Inches
Length21.5 Inches
Weight1 Pounds
Width23.25 Inches
Part NumberFB21.5X23.25A_2
ModelFB21.5X23.25A_2

9. Aerostar

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Aerostar 21 1/2x23 1/2x1 MERV 13 Pleated Air Filter, AC Furnace Air Filter, 6 Pack Actual Size: 21 1/2" x 23 1/2" x 3/4"

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Aerostar #ad - Manufactured in the usa by filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive.

Nominal size: 21 1/2 x 23 1/2 x 1; actual size: 21 1/2"x23 1/2"x3/4". Designed to filter microscopic particles such as lint, pollen, spores, smoke, dust mites, pet dander, fine dust, and bacteria. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months. Simple to install and a cost-effective step towards a healthier home environment. 100% synthetic electrostatic media for high efficiency with low air flow resistance. Comparable to mpr 600 clean living and Honeywell Micro Defense Plus FPR 5.
BrandAerostar #ad
ManufacturerFiltration Group #ad
Part Number21 1/2x23 1/2x1 MERV 13