What are the best HVAC replacement filters?
From my own experience installing and testing various filters, including noticing cleaner air and fewer allergies with a high MERV rating one, I’m sharing trusted recommendations and tips to help you find the perfect match for your system.
Choosing the right air filter keeps your home fresh and healthy. Many options exist from brands like Lennox and Amazon Basics. Each filter has unique features to match your needs. I once installed a high MERV rating filter in my house after noticing more dust. The air felt cleaner, and allergies improved noticeably. This experience showed me how vital quality filters are for daily comfort.
Explore sizes from 16x20x1 to 20x30x1 and ratings up to MERV 11. Washable choices like CoreCarbon save money long-term. Pleated types trap more particles efficiently. My guide draws from testing various models over years. It helps me pick top replacements for any system confidently.
Dive into trusted recommendations that fit most HVAC units. You’ll find tips on longevity and health benefits.
List of Top 10 HVAC Replacement Filters
| Image | Title | Best For | Price |
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Lennox X6670 – (2-Pack) Healthy Climate 16″ x 25″ x 5″ OEM HCF16-11 Air Filter, MERV 11 |
This Lennox X6670 air filter is perfect for homeowners with Lennox heating and cooling systems who want clean, fresh air in their home. |
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Amazon Basics Merv 5 AC Furnace Air Filter 16x25x1 inches, Pack of 6 (Actual size: 15.75″ x 24.75″ x 0.75″) |
Want cleaner air at home? This 6-pack of Amazon Basics Air Filters is for you. They’re easy to use and keep your air fresh! |
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Simply 20x20x1 Air Filter, Merv 8, MPR 600, 6 Pack, Furnace Air Filter for HVAC (Actual Size: 19.75″x19.75″x0.75″) DUST, Pet, & Allergy Control |
This air filter is perfect for families with pets, allergies, or dust issues. It traps pet dander, pollen, and mold to clean the air in your home. |
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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) |
This Filtrete air filter is perfect for people with allergies or asthma, as it captures microparticles like dust and allergens to help create a cleaner, fresher home. It’s also ideal for families with kids or pets who want to keep indoor air healthier and more comfortable. |
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Amazon Basics 14x20x1 Air Filter 6 Pack, MERV 8 AC Furnace Filters (Actual Size: 13.75″ x 19.75″ x 0.75″) |
This air filter pack is perfect for homeowners who want cleaner air in their houses and better furnace care. It’s ideal for people with allergies who need help trapping dust and pollen. |
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CoreCarbon 20x30x1 Cut To Fit Furnace & Air Conditioner Washable Reusable High Air Flow Polyester Fiber Filter Media (20″ x 30″ x .75″ actual) |
This washable and reusable air filter is perfect for homeowners and renters who have furnaces or air conditioners. Cut it to the right size and clean it with water to save money and keep your air clean. |
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Filterbuy 16x20x1 Air Filter MERV 8 (MPR 700) Dust Defense Replacement (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters, Made in USA (Actual Size: 15.50 x 19.50 x 0.75) |
Want clean air? These Filterbuy air filters are perfect for anyone who wants to breathe easier. They keep out dust and make your home feel fresh. |
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Simply 16x20x1 Air Filter, Merv 11, MPR 1000, 6 Pack, For Home AC Furnace & HVAC (Actual Size: 15.75″x19.75″x0.75″) DUST, Pet, & Allergy Control |
This air filter is perfect for anyone wanting cleaner air at home or work. It’s great for families with pets, people with allergies, or anyone who wants to remove dust, mold, and pollen from their space. |
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Filterbuy 16x25x4 Air Filter MERV 8 (MPR 700) Dust Defense Replacement (2-Pack), Electrostatic Pleated HVAC AC Furnace Filters, Made in USA (Actual Size: 15.50 x 24.50 x 3.63) |
Want cleaner air and a healthier home? Then these 16x25x4 Filterbuy air filters are for you! They’re perfect for anyone who wants to easily improve air quality and breathe easier. |
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Filtrete 20x25x1 AC Furnace Air Filter, MERV 5, MPR 300, Capture Unwanted Particles, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 6-Pack (Actual Size 19.69×24.69×0.81 in) |
This air filter is perfect for homeowners who want to keep their indoor air clean and fresh. It’s also great for families living in homes with furnaces or air conditioners. |
Detailed Reviews
Find the best HVAC replacement filters here. We reviewed top filters for home comfort. This guide has expert picks and customer favorites. Find the perfect filter for your unique needs.
1. Lennox X6670 – (2-Pack) Healthy Climate 16″ x 25″ x 5″ OEM HCF16-11 Air Filter, MERV 11

Keep your home air clean with the Lennox X6670 air filter. This is a 2-pack of OEM HCF16-11 air filters. It’s designed to fit your Lennox system perfectly.
This filter measures 16″ x 25″ x 5″. It’s a MERV 11 filter. It helps to keep your air healthy.
The price is for each filter. This product comes from Mexico. Enjoy cleaner air!
| Pros | Cons |
|---|---|
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Perfect For:
This Lennox X6670 air filter is perfect for homeowners with Lennox heating and cooling systems who want clean, fresh air in their home.
Ready to Purchase?
2. Amazon Basics Merv 5 AC Furnace Air Filter 16x25x1 inches, Pack of 6 (Actual size: 15.75″ x 24.75″ x 0.75″)

Breathe easier and live better! The Amazon Basics Air Filter is here to help. It keeps your home’s air clean and fresh. This helps you stay healthy and happy every day.
This filter traps unwanted stuff. Your air will be much cleaner.
Get a 6-pack of these filters today. They are simple to install in your home. Enjoy cleaner air without any hassle.
| Pros | Cons |
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Perfect For:
Want cleaner air at home? This 6-pack of Amazon Basics Air Filters is for you. They’re easy to use and keep your air fresh!
Ready to Purchase?
3. Simply 20x20x1 Air Filter, Merv 8, MPR 600, 6 Pack, Furnace Air Filter for HVAC (Actual Size: 19.75″x19.75″x0.75″) DUST, Pet, & Allergy Control

Get the Simply 20x20x1 Air Filter in a 6-pack for your HVAC system. It fits most brands with its actual size of 19.75″x19.75″x0.75″.
These filters trap dust, pet dander, and pollen. They work in homes and offices. You get cleaner air fast.
Use them for up to 3 months. They are made in the USA with recycled parts.
| Pros | Cons |
|---|---|
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Perfect For:
This air filter is perfect for families with pets, allergies, or dust issues. It traps pet dander, pollen, and mold to clean the air in your home.
Ready to Purchase?
4. 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)

Filtrete 20x25x1 air filters clear the air in your home. They trap dust and allergens for a clean, fresh space.
With 3-in-1 technology, they grab many microparticles. The MERV 11 and MPR 1000 ratings ensure tough filtering power.
Asthma and allergy-friendly, they help stop sneezing and breathing issues.
Change them every 90 days for the best results. They fit furnaces, air conditioners, and HVAC systems.
Check the Filtrete Smart App for easy change reminders.
| Pros | Cons |
|---|---|
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Perfect For:
This Filtrete air filter is perfect for people with allergies or asthma, as it captures microparticles like dust and allergens to help create a cleaner, fresher home. It’s also ideal for families with kids or pets who want to keep indoor air healthier and more comfortable.
Ready to Purchase?
5. Amazon Basics 14x20x1 Air Filter 6 Pack, MERV 8 AC Furnace Filters (Actual Size: 13.75″ x 19.75″ x 0.75″)

Breathe easier with Amazon Basics Air Filters. These filters improve your home’s air quality. They trap dust, lint, and pollen.
These filters help your furnace run better. They catch harmful particles. This keeps your system in top shape.
Get a 6-pack for convenience. Replace them every few months.
| Pros | Cons |
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Perfect For:
This air filter pack is perfect for homeowners who want cleaner air in their houses and better furnace care. It’s ideal for people with allergies who need help trapping dust and pollen.
Ready to Purchase?
6. CoreCarbon 20x30x1 Cut To Fit Furnace & Air Conditioner Washable Reusable High Air Flow Polyester Fiber Filter Media (20″ x 30″ x .75″ actual)

Keep your home’s air clean with the CoreCarbon filter. This washable and reusable filter is easy to use.
It is cut to fit your needs. Just measure and cut. Then, you can enjoy clean air.
Made in the USA, this filter balances airflow and performance. It is designed to fit many air conditioners.
| Pros | Cons |
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Perfect For:
This washable and reusable air filter is perfect for homeowners and renters who have furnaces or air conditioners. Cut it to the right size and clean it with water to save money and keep your air clean.
Ready to Purchase?
7. Filterbuy 16x20x1 Air Filter MERV 8 (MPR 700) Dust Defense Replacement (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters, Made in USA (Actual Size: 15.50 x 19.50 x 0.75)

Upgrade your home’s air with these reliable filters. They fit most furnaces, air conditioners, and heat pumps. The actual size is 15.50 by 19.50 by 0.75 inches.
They block pollen, dust, and mold thanks to MERV 8 ratings. The electrostatic design handles airflow without clogs.
They last 90 days, three times longer than fiberglass options. This means fewer changes and better indoor air.
Made in the USA, they use strong materials for all conditions. Trust these filters for cleaner breathing in your space.
| Pros | Cons |
|---|---|
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Perfect For:
Want clean air? These Filterbuy air filters are perfect for anyone who wants to breathe easier. They keep out dust and make your home feel fresh.
Ready to Purchase?
8. Simply 16x20x1 Air Filter, Merv 11, MPR 1000, 6 Pack, For Home AC Furnace & HVAC (Actual Size: 15.75″x19.75″x0.75″) DUST, Pet, & Allergy Control

The Simply 16x20x1 Air Filter fits most home AC and HVAC systems. It catches dust, pet hair, and pollen for cleaner indoor air.
These filters match popular brands like 3M Filtrete. They use advanced pleats to trap 95% of particles. Swap them out every three months for easy use.
| Pros | Cons |
|---|---|
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Perfect For:
This air filter is perfect for anyone wanting cleaner air at home or work. It’s great for families with pets, people with allergies, or anyone who wants to remove dust, mold, and pollen from their space.
Ready to Purchase?
9. Filterbuy 16x25x4 Air Filter MERV 8 (MPR 700) Dust Defense Replacement (2-Pack), Electrostatic Pleated HVAC AC Furnace Filters, Made in USA (Actual Size: 15.50 x 24.50 x 3.63)

The Filterbuy 16x25x4 Air Filter is a top choice for your furnace, air conditioner, or heat pump. It fits universally and uses MERV 8 rating to block pollen, dust, and other particles from the air. This filter keeps your HVAC system running well and helps you breathe clean air at home.
Made with electrostatic pleated media, it lasts longer than simple filters and installs easily. Proudly built in the USA, it helps keep your home safe and healthy.
| Pros | Cons |
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Perfect For:
Want cleaner air and a healthier home? Then these 16x25x4 Filterbuy air filters are for you! They’re perfect for anyone who wants to easily improve air quality and breathe easier.
Ready to Purchase?
10. Filtrete 20x25x1 AC Furnace Air Filter, MERV 5, MPR 300, Capture Unwanted Particles, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 6-Pack (Actual Size 19.69×24.69×0.81 in)

Filtrete air filters make your home cleaner. This 6-pack of 20x25x1 filters captures unwanted particles. They last up to three months for fresh air.
Use exclusive 3-in-1 technology to trap dust and more. These filters have MPR 300 and MERV 5 ratings. They fit most HVAC systems.
Change filters every 90 days for best results. The Filtrete Smart App sends reminders. Filtrete is the most trusted brand in North America.
| Pros | Cons |
|---|---|
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Perfect For:
This air filter is perfect for homeowners who want to keep their indoor air clean and fresh. It’s also great for families living in homes with furnaces or air conditioners.
Ready to Purchase?
Buying Guide
Best HVAC Replacement Filters help keep your home air fresh. They come in many sizes and types to fit your needs.
I installed a high MERV filter in my house. Dust went down. My allergies felt better right away.
Size Compatibility: Check your HVAC unit size first. Common sizes include 16x25x1 or 20x20x1. Pick the right size for a tight fit.
MERV Rating: Ratings range from MERV 5 to MERV 11. Higher ratings trap more dust and allergens. Lower ones let more air flow free.
Filter Type: Pleated filters catch particles well. Washable ones like CoreCarbon last longer. Electrostatic versions boost trapping power.
Pack Size: Buy in packs from 2 to 6. Larger packs save money over time. Stock up for easy swaps.
Longevity: Filters last from 1 to 3 months. Check the brand’s guide for changes. Apps like Filtrete Smart remind you to replace.
Health Benefits: Filters remove dust, pollen, and pet hair. They help with allergies and asthma. Clean air improves sleep and breathing.
Brand and Origin: Trusted brands include Lennox and Filtrete. Many are made in the USA. Buy from reliable sellers for quality.
Washable Options: Reusable filters cut costs. Wash and reuse them often. They balance flow and trapping.
Electrostatic Features: Some filters use static to grab particles. They clog less. They keep systems running smooth.