Updated: August, 2025

Best air conditioner filters

Save up to 41% Off

1

Aprilaire

9.8

Exceptional

AprilAire 213 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 13, Healthy Home Allergy, 20x25x4 Air Filter (Pack of 1)

Why we love it

Traps allergens effectively.

Easy to install.

High performance with minimal air bypass.

Main highlights

Optimal Air Quality Solution
The AprilAire 213 filter offers MERV 13 filtration, capturing dust, pollen, mold spores, and allergens for healthier indoor air.

Best for Allergy-Prone Homes
Ideal for homes needing enhanced air quality to reduce allergens and protect respiratory health.

Praised for Perfect Fit
Customers frequently praise the precise fit and performance in compatible AprilAire models.

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How do we rank?

How do we rank
Our AI-powered platform ranks products using multiple weighted factors from millions of products and user reviews across the web, providing the most valuable and real data. Higher scores rank first.
2

BNX

9.7

Exceptional

BNX TruFilter 20x23x1 Air Filter MERV 11 (6-Pack) - MADE IN USA - Allergen Defense Electrostatic Pleated Air Conditioner HVAC AC Furnace Filters for Allergies, Dust, Pet, Smoke, Allergy MPR 1200 FPR 7

Why we love it

1. Made in USA: ensuring high quality.

2. Sustainably produced: reducing environmental waste.

3. Superior performance: MERV 11 rating for excellent filtration.

Main highlights

Key Features
Electrostatically charged MERV 11 filter captures microscopic particles, made sustainably in the USA with low air flow resistance for superior performance.

Ideal Use Cases
Perfect for homes with pets, allergies, or in areas prone to dust and odors, ensuring cleaner air within 48 hours of installation.

Customer Praise
Most reviews highlight the noticeable improvement in air quality, ease of installation, and the sustainable, American-made construction as top benefits.

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3

Aerostar

9.4

Excellent

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

Why we love it

Easy to install and replace.

Cost-effective 6-pack bundle.

Efficient at capturing particles.

Main highlights

Efficient Filtration Performance
MERV 8 rating captures dust, pollen, and spores efficiently.

Ideal for Home Use
Perfect for improving air quality in homes with pets or allergies.

Praised for Value
Customers appreciate the economical 6-pack and quality performance.

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4

Filtrete

9.2

Excellent

Filtrete 20x25x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 2 Pack (Actual Size 19.688 x 24.688 x 0.84 in)

41% Off

Why we love it

Captures allergens effectively.

Fits standard HVAC systems.

Maintains good air quality.

Main highlights

Efficient Air Filtration
The Filtrete MPR 1000 filter captures unwanted particles for cleaner air.

Versatile HVAC Compatibility
Ideal for furnaces, air conditioners, and HVAC systems.

Highly Praised Performance
Customers appreciate its ability to reduce dust and allergens.

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5

Filtrete

9.1

Excellent

Filtrete 16x20x1 AC Furnace Air Filter, MERV 5, MPR 300, Capture Unwanted Particles, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 6-Pack (Actual Size15.69x19.69x0.81 in)

15% Off

Why we love it

The filter is designed to trap many types of air particles including large ones like lint and dust mites.

It is washable and does not create static electricity.

It is designed to let cleaner air flow through.

Main highlights

MAKE YOUR HOME YOUR SANCTUARY: 6-pack of 3-month pleated Filtrete 16x20x1 MPR 300 AC Furnace Air Filter helps capture unwanted particles from your household air to contribute to a cleaner, fresher home environment

EXCLUSIVE TECHNOLOGY: Designed with exclusive Filtrete 3-in-1 technology to pull in and trap unwanted particles, allowing cleaner air to flow through

DIFFERENT FROM NOMINAL SIZE: Slightly different from the nominal size, this air filter’s exact dimensions are 15.69 x 19.69 x 0.81

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6

Filterbuy

9.0

Excellent

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)

Why we love it

Captures 90% of airborne particles.

Sturdy industrial-grade frame.

Eco-friendly and recyclable.

Main highlights

Efficient Airborne Particle Capture
MERV 8 filters trap 90% of dust, pollen, and more.

Ideal for Residential HVAC Use
Perfect for furnaces, ACs, and heat pumps needing 20x20x1 filters.

Praised for Sturdy Construction
Customer reviews commend the filter's durable and easy-to-install design.

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7

BNX

8.7

Very Good

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

Why we love it

The BNX MERV 13 air filter captures 93 of microscopic airborne particles, making it ideal for people with allergies or who want cleaner air in their home.

The air filter has a low air flow resistance, meaning it wont impede the performance of your HVAC system.

The BNX air filter is made in the USA from recycled cardboard, making it a sustainable product.

Main highlights

SUPERIOR PERFORMANCE - The BNX MERV 13 air filter media outperforms standard fiberglass filters and adopts the latest in electrostatic filtration technology to capture maximum pollen, mold bacteria, smoke, carriers & other microscopic particles while maintaining industry leading superior low air flow resistance.

MADE IN USA, SUSTAINABLY - Proudly manufactured by BNX Converting, LLC in Houston, TX, a registered and approved facility (EPA Registration # 101638-TX-1). Adopts single sided (one-piece) frame technology to reduce environmental waste and made sustainably from recycled cardboard. Classified in accordance with UL 900 (Certificate Number UL-US-2403701-0).

20x20x1 MERV 13 air filter replacement for your air conditioner, furnace or HVAC system. Actual Size: 19 11/16’’ x 19 11/16’’ x 3/4‘’. Comparable with MPR 1500-1900 & FPR 10. Provides optimal defense with electrostatically charged filter media and superior low air flow resistance. Based on ASHRAE Standard 52.2-2017 Initial Efficiency / Resistance.

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8

CoreCarbon

8.5

Good

CoreCarbon 20x30x1 Cut To Fit Furnace & Air Conditioner Washable Reusable High Air Flow Polyester Fiber Filter Media (20" x 30" x .75" actual)

Why we love it

Customizable to any size needed.

Washable and reusable for long-term use.

Simple installation with minimal shedding.

Main highlights

Cut to Fit Flexibility
Easily customizable 20x30x1 pad, cut to fit any furnace or air conditioner.

Ideal for Reusability
Perfect for those seeking a cost-effective, washable filter solution.

Ease of Use Praised
Highly rated for easy installation and minimal shedding during setup.

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9

Duck

8.4

Good

Duck Brand Replacement Air Conditioner Foam Filter, 24-Inch x 15-Inch x 1/4-Inch, 1285234

Why we love it

Eliminates dust pollen

Washable reusable

Cut to any size

Main highlights

Made from polyurethane foam, it is both washable and reusable

Eliminates dust and pollen from the air

Cut foam down to any size

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10

Filtrete

8.3

Good

Filtrete 20x25x4 Air Filter, MPR 1000, MERV 11, Allergen Defense 12-Month Deep Pleated 4-Inch Air Filters, 2 Filters

Why we love it

Captures many airborne particles.

Compatible with multiple furnace brands.

Convenient 12-month filter life.

Main highlights

Efficient Air Filtration
The Filtrete 20x25x4 Air Filter uses 3-in-1 technology for capturing particles, ensuring cleaner air.

Versatile Furnace Compatibility
Ideal for Honeywell and Lennox furnaces, fitting both 4 and 5 filter slots.

Positive Customer Feedback on Durability
Praised for sturdy construction and effective air cleaning in customer reviews.

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Our top pick

1

AprilAire 213 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 13, Healthy Home Allergy, 20x25x4 Air Filter (Pack of 1)
The AprilAire 213 Replacement Filter is a top-tier choice for enhancing indoor air quality, designed specifically for AprilAire Whole House Air Purifiers. With a MERV 13 rating, it effectively traps dust, pollen, mold spores, bacteria, pet dander, and dust mites, making it ideal for allergy-prone households. Its unique Self-Seal Technology ensures minimal air bypass, optimizing filtration efficiency. The filter is simple to install with the AprilAire Interlock Rail System, requiring no additional reinforcements. Proudly made in the USA and partnered with the American Lung Association, this filter supports lung health initiatives. Customers appreciate its perfect fit and high performance, though some note the price is higher than desired. Overall, the AprilAire 213 is an excellent investment for maintaining a clean and healthy home environment.

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