10 Best furnace filters of 2025

Save up to 47% off

Best Choice

1

DENGESON

(2-Pack) 410 Replacement Filter Compatible with April-Aire Whole House Air Purifier 1410, 1610, 2410, 2416, 3410, 4400, MERV 10, 16 x 25 x 4 Air Filter Replacement
9.9

Exceptional

Our Rating
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Value for Money

2

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 19.88x24.63x4.31 in)

20% Off
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.
Key specs
- size:20x25x4
- material:Electrostatically charged filter media
- usage:Furnace, AC, HVAC
- special features:CERTIFIED asthma and allergy-friendly
- compatible device:Furnace, AC, HVAC
9.8

Exceptional

Our Rating

9.1
materials Quality

8.9
Durability

8.7
Easy installation
3

Filtrete
Filtrete 16x25x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 2 Pack (Actual Size 15.719 x 24.72 x 0.84 in)

47% Off
Main highlights

Efficient Air Filtration
The Filtrete MERV 11 filter captures microparticles, enhancing air quality and freshness.

Ideal for Allergy-Prone Homes
Perfect for homes in dusty areas or with pets, reducing allergens effectively.

Customer Praised Filtration Efficiency
Highly rated for maintaining airflow while minimizing dust and allergens.
Key specs
- size:16x25x1
- material:Electrostatically charged filter media
- usage:FOR RESIDENTIAL use only
- special features:Exclusive Filtrete 3-in-1 technology
- compatible device:Furnace, AC, HVAC system
9.5

Excellent

Our Rating

9.9
Simple to use

9.7
Easy installation

9.1
worth the money
4

Filtrete
Filtrete 20x25x4 AC Furnace Air Filter, MPR 1000, MERV 11, Fits Honeywell & AprilAire Space-Gard, Allergen Defense, Electrostatic Air Cleaning Filter, 2-Pack (actual size 19.88 x 24.63 x 4.31)

24% Off
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.
Key specs
- size:20x25x4
- material:Fiberglass
- usage:Furnace air filter
- special features:Filtrete 3-in-1 technology
- compatible device:Honeywell, Lennox furnaces
9.4

Excellent

Our Rating
5

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 Size 15.69x24.69x0.81 in)
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.
Key specs
- size:16 x 25 x 1
- material:Electrostatically charged filter media
- usage:Furnace, AC, HVAC
- special features:3-in-1 technology
- compatible device:Furnace, AC, HVAC
9.3

Excellent

Our Rating
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6

Filtrete

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)
9.2

Excellent

Our Rating

9.9
Simple to use

9.5
Easy installation

9.5
Sheerness
7

Filtrete
Filtrete 20x20x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 2 Pack (Actual Size 19.719 x 19.719 x 0.84 in)

28% Off
Main highlights

Exclusive Technology for Cleaner Air
Designed with Filtrete 3-in-1 technology to capture unwanted particles, contributing to a cleaner, fresher home environment.

Versatile Use for HVAC Systems
Ideal for use in furnaces, air conditioners, heating systems, or HVAC systems, ensuring optimal air quality and system efficiency.

Effective Dust and Allergen Control
Customers praise the filter's ability to reduce dust and allergens, maintaining a cleaner home environment and efficient HVAC performance.
Key specs
- size:20 x 20 x 1
- material:Electrostatically charged filter media
- usage:Furnace, AC, HVAC
- special features:3-in-1 technology
- compatible device:Furnace, AC, HVAC
9.0

Excellent

Our Rating
8

Filterbuy
Filterbuy 16x25x4 Air Filter MERV 8 Essential Dust & Allergy Defense (2-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 15.50 x 24.50 x 3.63)
Main highlights

Efficient Dust and Allergen Protection
MERV 8 rating captures 90% of airborne particles, enhancing indoor air quality without compromising airflow.

Versatile Use for Various HVAC Systems
Ideal for commercial and residential HVAC systems, including furnaces, air conditioners, and heat pumps.

Easy Installation Praised by Users
Customers frequently commend the filters for their straightforward installation process.
Key specs
- size:2 Count Pack of 1
- material:Polyester, Aluminum, Plastic
- usage:Commercial/Residential
- special features:Easy to Install, Dust Collection, Removable
- compatible device:Furnace, air conditioner, heat pump, HVAC system
8.8

Very Good

Our Rating

9.1
Easy installation

8.2
Durability

8.0
worth the money
9

Simply
Simply 16x25x1 Air Filter, MERV 8, MPR 600, 6 Pack, For Home AC Furnace & HVAC (Actual Size: 15.75"x24.75"x0.75") DUST, Pet, & Allergy Control

10% Off
Main highlights

Key Features
Universally compatible, captures 90% of airborne particles with advanced pleated technology, and lasts up to 3 months. Made in USA.

Ideal Use Cases
Perfect for homes, offices, schools, hospitals, and commercial spaces seeking cleaner air by trapping dust, mold, pet dander, and pollen.

Customer Reviews Highlight
Most praised for its ease of installation, superior air purification performance, and compatibility with various HVAC systems.
Key specs
- size:16x25x1
- material:Electrostatically Charged Synthetic Media
- usage:Homes, offices, schools
- special features:Advanced Pleated Technology
- compatible device:HVAC systems
8.6

Very Good

Our Rating

9.9
Sheerness

9.5
Easy installation

9.1
worth the money
10

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)
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.
Key specs
- size:20 x 25 x 5
- material:Electrostatically Charged Filter Media
- usage:FOR RESIDENTIAL use only
- special features:Captures more particles
- compatible device:Lennox furnaces
8.3

Good

Our Rating

10 Best furnace filters of 2025

1

(2-Pack) 410 Replacement Filter Compatible with April-Aire Whole House Air Purifier 1410, 1610, 2410, 2416, 3410, 4400, MERV 10, 16 x 25 x 4 Air Filter Replacement

How do we rank?

How do we rank?

Analyzing top stores

2

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 19.88x24.63x4.31 in)

9.1

8.9

8.7

3

Filtrete 16x25x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 2 Pack (Actual Size 15.719 x 24.72 x 0.84 in)

9.9

9.7

9.1

4

Filtrete 20x25x4 AC Furnace Air Filter, MPR 1000, MERV 11, Fits Honeywell & AprilAire Space-Gard, Allergen Defense, Electrostatic Air Cleaning Filter, 2-Pack (actual size 19.88 x 24.63 x 4.31)

5

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 Size 15.69x24.69x0.81 in)

6

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)

9.9

9.5

9.5

7

Filtrete 20x20x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 2 Pack (Actual Size 19.719 x 19.719 x 0.84 in)

8

Filterbuy 16x25x4 Air Filter MERV 8 Essential Dust & Allergy Defense (2-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 15.50 x 24.50 x 3.63)

9.1

8.2

8.0

9

Simply 16x25x1 Air Filter, MERV 8, MPR 600, 6 Pack, For Home AC Furnace & HVAC (Actual Size: 15.75"x24.75"x0.75") DUST, Pet, & Allergy Control

9.9

9.5

9.1

10

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)

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