Furnace Filters of 2025

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Last Updated - April 20, 2025

Best Choice

1

Clicked 39 times in the last month

Filtrete
Filtrete 20x25x4 AC Furnace Air Filter, MPR 1550, MERV 12, Fits Honeywell & AprilAire Space-Gard, CERTIFIED Asthma & Allergy Friendly, Electrostatic Filter, 2-Pack (actual size 19.88 x 24.63 x 4.31)

9.1 materials Quality

8.9 Durability

8.7 Easy installation

Why we love it

Captures numerous microparticles effectively.

Certified for asthma and allergy relief.

Versatile use in various HVAC systems.
Main highlights

High Performance Filtration
The Filtrete MPR 1550 captures unwanted particles for cleaner air.

Ideal for Allergy Sufferers
Certified asthma and allergy-friendly, perfect for sensitive households.

Customer Praised Durability
Highly rated for consistent performance and reliability in reviews.
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9.9

Exceptional

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Value for Money

2

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

9.9 Easy installation

9.5 Long life

9.3 worth the money

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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9.7

Exceptional

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3

Filtrete
Filtrete 16x25x1 AC Furnace Air Filter, MERV 5, MPR 300, Capture Unwanted Particles, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 6-Pack (Actual Size15.69x24.69x0.81 in)

9.9 Simple to use

9.5 Easy installation

9.5 Sheerness

Why we love it

Captures large particles effectively.

Improves HVAC efficiency.

Affordable and reliable.
Main highlights

Effective Particle Capture
Filtrete 16x25x1 Air Filter captures large particles for cleaner air.

Versatile Use Scenarios
Ideal for furnaces, air conditioners, and HVAC systems.

Customer Praised Performance
Highly rated for airflow and particle capture efficiency.
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9.6

Exceptional

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4

Filtrete
Filtrete 16x25x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 4 Pack (Actual Size 15.69 x 24.69 x 0.81 in)

26% Off

9.9 Simple to use

9.9 Sheerness

9.7 Easy installation

Why we love it

Captures allergens effectively.

Easy installation and maintenance.

Highly recommended by users.
Main highlights

Efficient Allergen Capture
Designed with MERV 11 rating to trap allergens like pollen and dust.

Optimal Use for Residential HVAC
Ideal for residential HVAC systems, ensuring clean air flow.

Consistent Quality Performance
Praised for reliability and performance by satisfied customers.
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9.4

Excellent

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5

Aerostar
Aerostar 20x20x1 Air Filter MERV 8 (For Allergies, Dust, Lint, Mold & Pet Dander) - Electrostatic MPR 600 & FPR 5 - Pleated HVAC AC Furnace Air Filters - Pack of 6

9.3 Easy installation

8.7 worth the money

8.2 Durability

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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9.3

Excellent

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6

Filtrete
Filtrete 20x25x4, AC Furnace Air Filter, MPR 1000 DP, Micro Allergen Defense Deep Pleat, 2-Pack (actual dimensions 19.88 x 24.63 x 4.31)

8.7 Durability

8.4 worth the money

8.2 Easy installation

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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9.1

Excellent

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7

Filtrete
Filtrete 20x25x5 AC Furnace Air Filter, MPR 1000, MERV 11, Fits Lennox Devices, Allergen Defense, Electrostatic Air Cleaning Filter, 2-Pack (actual size 19.63 x 24.75 x 4.31 in)

9.1 Easy installation

8.4 Durability

8.0 worth the money

Why we love it

Highly efficient particle capture.

Perfect fit for many systems.

Improves indoor air quality.
Main highlights

Efficient Air Filtration
Captures more particles like pollen, pet dander, and smoke.

Perfect for Residential Use
Ideal for Lennox furnaces and Honeywell Electric furnace replacements.

Customer Praised Fit
Fits perfectly in various HVAC systems, enhancing air quality.
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8.8

Very Good

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8

Filtrete
Filtrete 16x25x5 AC Furnace Air Filter, MPR 1000, MERV 11, Fits Lennox Devices, Allergen Defense, Electrostatic Air Cleaning Filter, 2-Pack (actual size 15.63 x 24.74 x 4.31)

9.1 Easy installation

9.1 Durability

8.4 worth the money
Main highlights

SMART APP: Use the Filtrete Smart App (iOS or Android) to set 90-, 180- or 365-day reminders to change your air filter
RECYCLED CONTENT: Verified to contain at least 50% recycled content by GreenCircle Certified, a third-party auditor
MAKE YOUR HOME YOUR SANCTUARY: 1000 MPR + MERV 11 rating helps capture up to 2X more microparticles than MERV alone(2)
FOR RESIDENTIAL use only
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 15.63 in x 24.74 in x 4.31 in, This item is a 2-pack of 12-month Filtrete Air Filters
DESIGNED TO FIT: Lennox brand media air cleaners
CHANGE YOUR FILTER OFTEN: For optimal performance, make sure to change your 5-inch filter at least once every 12 months
CERTIFIED: This furnace filter is CERTIFIED asthma and allergy-friendly (2) and helps capture dust, lint and other allergens in your household air
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8.7

Very Good

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9

Filterbuy
Filterbuy 20x25x5 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters for Honeywell FC100A1037, Lennox X6673, Carrier, & More (Actual Size: 19.88 x 24.75 x 4.38 Inches)

23% Off

9.5 lasts a long time

9.5 Easy installation

9.3 Durability

Why we love it

Traps 90% of airborne particles.

Fits multiple HVAC systems.

Durable and long-lasting.
Main highlights

Efficient Particle Filtration
MERV 8 rating traps 90% of dust, pollen, and more.

Versatile Compatibility
Ideal for Honeywell, Lennox, Carrier, and more HVAC systems.

Reliable Customer Service
Praised for excellent after-sales support and reasonable pricing.
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8.4

Good

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10

Aerostar
Aerostar 16x25x1 Air Filter MERV 11 (For Allergies, Dust, Lint, Mold, Pet Dander, Smoke & Smog) - Electrostatic MPR 1000 - 1200 & FPR 7 - Pleated HVAC AC Furnace Air Filters - Pack of 6

9.9 Attachment

9.3 Easy installation

8.9 Sheerness

Why we love it

This filter is designed to remove microscopic particles like dust mites, spores, pollen, and pet dander.

Its simple to install and is a cost effective way to make your home environment healthier.

This filter is made with 100 synthetic electrostatic media for high efficiency and low air flow resistance.
Main highlights

Simple to install and a cost-effective step towards a healthier home environment. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months
Nominal size: 16x25x1; Actual size 15 3/4"x 24 3/4" x 3/4"; This MERV 11 filter is comparable with MPR 1000-1200 & FPR 7
Manufactured by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive
Designed to filter microscopic particles such as lint, dust mites, spores, pollen, pet dander, fine dust, and smoke
100% synthetic electrostatic media for high efficiency with low air flow resistance
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8.2

Good

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Furnace Filters of 2025

1

Filtrete 20x25x4 AC Furnace Air Filter, MPR 1550, MERV 12, Fits Honeywell & AprilAire Space-Gard, CERTIFIED Asthma & Allergy Friendly, Electrostatic Filter, 2-Pack (actual size 19.88 x 24.63 x 4.31)

Why we love it

2

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

3

Filtrete 16x25x1 AC Furnace Air Filter, MERV 5, MPR 300, Capture Unwanted Particles, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 6-Pack (Actual Size15.69x24.69x0.81 in)

Why we love it

4

Filtrete 16x25x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 4 Pack (Actual Size 15.69 x 24.69 x 0.81 in)

Why we love it

5

Aerostar 20x20x1 Air Filter MERV 8 (For Allergies, Dust, Lint, Mold & Pet Dander) - Electrostatic MPR 600 & FPR 5 - Pleated HVAC AC Furnace Air Filters - Pack of 6

Why we love it

6

Filtrete 20x25x4, AC Furnace Air Filter, MPR 1000 DP, Micro Allergen Defense Deep Pleat, 2-Pack (actual dimensions 19.88 x 24.63 x 4.31)

Why we love it

7

Filtrete 20x25x5 AC Furnace Air Filter, MPR 1000, MERV 11, Fits Lennox Devices, Allergen Defense, Electrostatic Air Cleaning Filter, 2-Pack (actual size 19.63 x 24.75 x 4.31 in)

Why we love it

8

Filtrete 16x25x5 AC Furnace Air Filter, MPR 1000, MERV 11, Fits Lennox Devices, Allergen Defense, Electrostatic Air Cleaning Filter, 2-Pack (actual size 15.63 x 24.74 x 4.31)

9

Filterbuy 20x25x5 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters for Honeywell FC100A1037, Lennox X6673, Carrier, & More (Actual Size: 19.88 x 24.75 x 4.38 Inches)

Why we love it

10

Aerostar 16x25x1 Air Filter MERV 11 (For Allergies, Dust, Lint, Mold, Pet Dander, Smoke & Smog) - Electrostatic MPR 1000 - 1200 & FPR 7 - Pleated HVAC AC Furnace Air Filters - Pack of 6

Why we love it

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