August 15, 2025

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10 Best furnace filters of 2025

Save up to 26% off

Best Choice

1

Aprilaire
AprilAire 413 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 13, Healthy Home Allergy, 16x25x4 Air Filter (Pack of 1)
Main highlights

Optimized Performance with MERV 13
The AprilAire 413 filter offers superior filtration, capturing dust, pollen, and allergens to enhance home air quality.

Ideal for Allergy-Prone Homes
Perfect for homes with pets or allergy sufferers, improving air quality by trapping allergens and dust.

Exact Fit and Longevity
Customers praise its precise fit and durability, lasting up to six months even in pet-friendly homes.
Key specs
- features:Self-Seal Technology
- compatible device:AprilAire Air Purifier
- dimensions:16 x 25 x 4 inches
- filter type:MERV 13
- material:N/A
9.8

Exceptional

Our Rating

9.9
Easy installation

9.7
Durability

9.7
Sheerness
How do we rank?

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Careful review Our team ensures quality, value, and fit based on real user feedback

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Thousands of users trust our site daily

Based on millions of stores and reviews

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Value for Money

2

Filtrete
Filtrete 20x25x4 AC Furnace Air Filter, MPR 1550, MERV 12, Fits Lennox & Honeywell, Allergen, Electrostatic Air Cleaning Filter, 2-Pack (actual size 19.88 x 24.63 x 4.31)

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
- dimensions:24.56 x 4.31 x 19.88 inches
9.6

Exceptional

Our Rating

9.1
materials Quality

8.9
Durability

8.7
Easy installation
3

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

20% 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
- dimensions:15.75 x 24.75 x 0.75 inches
9.4

Excellent

Our Rating

9.9
Sheerness

9.5
Easy installation

9.1
worth the money
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
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.
9.2

Excellent

Our Rating

9.9
Simple to use

9.9
Sheerness

9.7
Easy installation
5

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)

15% Off
9.1

Excellent

Our Rating

9.9
Simple to use

9.5
Easy installation

9.5
Sheerness
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6

Filterbuy
Filterbuy 16x25x4 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 15.50 x 24.50 x 3.63 Inches)
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
- dimensions:15.38 x 24.38 x 3.63 inches
9.0

Excellent

Our Rating

9.1
Easy installation

8.2
Durability

8.0
worth the money
7

Amazon Basics
Amazon Basics 16x20x1 Air Filter 6 Pack, MERV 8 AC Furnace Filters (Actual Size: 15.75" x 19.75" x 0.75")
Main highlights

Captures Household Irritants and Improves Air Quality
AC/Furnace filter for capturing household irritants, improving air quality, and promoting furnace efficiency. Merv 8 rating comparable to MPR 600 and FPR 5.

Ideal for Residential Use and Regular Maintenance
Captures allergens between 3-10 microns including lint, dust, and pollen. For optimal results, change filter every 60 to 90 days.

Praised for Good Fit and Easy Installation
Customers appreciate the filters for their good fit in air intake boxes and easy installation, despite some concerns about sturdiness and occasional damage during shipping.
Key specs
- size:16 x 20 x 1 inch
- material:Electrostatically charged synthetic
- usage:Residential
- special features:Captures allergens
- dimensions:20 x 16 x 1 inches
8.9

Very Good

Our Rating

9.3
Easy installation

9.1
Sheerness

8.4
worth the money
8

CoreCarbon
CoreCarbon 20x30x1 Cut To Fit Furnace & Air Conditioner Washable Reusable High Air Flow Polyester Fiber Filter Media (20" x 30" x .75" actual)
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.
Key specs
- size:20x30x1
- material:Polyester
- usage:Furnace
- special features:Washable, Cut to fit
- dimensions:20 x 30 x 1 inches
8.7

Very Good

Our Rating
9

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
- dimensions:24.75 x 19.75 x 4.38 inches
8.4

Good

Our Rating

9.1
Easy installation

8.4
Durability

8.0
worth the money
10

Filterbuy
Filterbuy 16x20x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 15.50 x 19.50 x 0.75 Inches)
Main highlights

Efficient Particle Capture
MERV 8 pleated filters trap 90% of airborne particles, enhancing indoor air quality.

Versatile Home Application
Ideal for residential HVAC systems, including furnaces and air conditioners.

Perfect Fit Assurance
Customers appreciate the true-to-size dimensions for easy installation.
Key specs
- size:4 Count Pack of 1
- material:Polyester, Aluminum, Plastic
- usage:Commercial/Residential
- special features:Easy to Install, Dust Collection, Removable
- dimensions:19.5 x 15.5 x 0.75 inches
8.3

Good

Our Rating

9.9
Easy installation

9.7
Durability

9.5
worth the money

10 Best furnace filters of 2025

1

AprilAire 413 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 13, Healthy Home Allergy, 16x25x4 Air Filter (Pack of 1)

9.9

9.7

9.7

How do we rank?

How do we rank?

Analyzing top stores

2

Filtrete 20x25x4 AC Furnace Air Filter, MPR 1550, MERV 12, Fits Lennox & Honeywell, Allergen, Electrostatic Air Cleaning Filter, 2-Pack (actual size 19.88 x 24.63 x 4.31)

9.1

8.9

8.7

3

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

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)

9.9

9.9

9.7

5

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

6

Filterbuy 16x25x4 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 15.50 x 24.50 x 3.63 Inches)

9.1

8.2

8.0

7

Amazon Basics 16x20x1 Air Filter 6 Pack, MERV 8 AC Furnace Filters (Actual Size: 15.75" x 19.75" x 0.75")

9.3

9.1

8.4

8

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

9

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

8.4

8.0

10

Filterbuy 16x20x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 15.50 x 19.50 x 0.75 Inches)

9.9

9.7

9.5

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