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5 Best Furnace Filters of 2025

Last Updated - 2025/06/25

1
Best Choice

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Healthy Climate

Lennox Healthy Climate 16x25x5 X6670 MERV 11 Filter-Actual Size 15 3/4" x 24 3/4" x 4 3/8". Pack of 3.

Healthy Climate

CA$114.88

More Details
Main highlights
- Replaces Honeywell FC35A1001, FC100A1029, FC200E1029
- Replaces EXPXXFIL0016, EXPXXUNV0016, EXPXXLMC0016, FILCCCAR0016, FILBBCAR0016
- Nominal Size: 16 inch x 25 inch x 5 inch
- Genuine Lennox Replacement Filter, MERV 11, Replaces X6670 for Lennox Model HCF16-10, HCC16-28
- Actual Size:15 3/4 inch x 24 3/4 inch x 4 3/8 inch
CA$114.88
2

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

PleatMate Furnace Filters

M8-1056 GENUINE 20x25x5 (Actual Size: 20-1/4 x 25-3/8 x 5-1/4) MERV 11 GOODMAN, ELECTRO-AIR, FIVE SEASONS, CARRIER, AMANA 20X25 MEDIA FILTERS - Case of 3 Filters, PRIME OEM PRODUCT.

PleatMate Furnace Filters

CA$97.96

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Main highlights
CA$97.96
3
Best Value
13% Off

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Filtrete
13% Off

Filtrete 16x25x1 Furnace Filter, MPR 300, MERV 5, Clean Living Basic Dust 3-Month Pleated 1-Inch Air Filters, 6 Filters

Filtrete

CA$53.62

CA$61.85
(13% Off)

More Details
Main highlights
- VERSATILE USES: Works for changing the home air filters in your furnace, air conditioner/heating system or HVAC system
- MAKE YOUR HOME YOUR SANCTUARY: 6-pack of 3-month pleated Filtrete 16x25x1 MPR 300 AC Furnace Air Filter helps capture unwanted particles from your household air to contribute to a cleaner, fresher home environment
- EXCLUSIVE TECHNOLOGY: Air filter designed with exclusive Filtrete 3-in-1 technology to pull in and trap unwanted particles to make air cleaner as it flows through
- DIFFERENT FROM NOMINAL SIZE: Slightly different from the nominal size, this air filter’s exact dimensions are 15.69 x 24.69 x 0.81
- COUNTLESS PARTICLES: With a 300 MPR and MERV 5 rating, your Filtrete Filter will help capture many particles from the air passing through it
- CHANGE YOUR FILTER OFTEN: For optimal performance, make sure to change your filter at least once every 90 days
CA$53.62
CA$61.85 (13% Off)
4

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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)

Filtrete

CA$58.98

More Details
Main highlights
- washable and non-electrostatic pleated 1" filters
- Outperforms fiberglass
- Lasts up to 3 months
- Carries a 1000 Microparticle Performance Rating (MPR)
- Attracts and captures microscopic particles like smoke and smog and large allergens like mold spores and pollen from the air passing through the filter
CA$58.98
5

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

electro-air

Five Seasons M1-1056 Replacement MERV 11 Premium Box Furnace Filter for Air Cleaner Purification Systems, 1400 CFM, 25.5 x 5.25 x 15.38" (3 Pack)

electro-air

CA$93.49

More Details
Main highlights
- Genuine Electro-Air Part # M1-1056 Size 15 3/8 x 25 1/2 x 5 1/4 MERV 11 Case of 3
CA$93.49

5 Best Furnace Filters of 2025

Lennox Healthy Climate 16x25x5 X6670 MERV 11 Filter-Actual Size 15 3/4" x 24 3/4" x 4 3/8". Pack of 3.

M8-1056 GENUINE 20x25x5 (Actual Size: 20-1/4 x 25-3/8 x 5-1/4) MERV 11 GOODMAN, ELECTRO-AIR, FIVE SEASONS, CARRIER, AMANA 20X25 MEDIA FILTERS - Case of 3 Filters, PRIME OEM PRODUCT.

Filtrete 16x25x1 Furnace Filter, MPR 300, MERV 5, Clean Living Basic Dust 3-Month Pleated 1-Inch Air Filters, 6 Filters

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)

Five Seasons M1-1056 Replacement MERV 11 Premium Box Furnace Filter for Air Cleaner Purification Systems, 1400 CFM, 25.5 x 5.25 x 15.38" (3 Pack)

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