What are the best AC filters?
We offer the top AC filters based on real tests and user stories, where people shared how they reduced dust and allergies while lasting up to 12 months without clogging.
Clean air starts with the right AC filter. Many users share how switching to top Filtrete filters cut down on dust and eased their allergies fast.
Our guide picks the best based on real tests and user stories. Folks love how these filters last up to 12 months without clogging. You will find easy fits for your HVAC system here.
Dive in to see which filter boosts your home’s air quality best. Trust our picks to make breathing easier every day.
List of Top 10 AC Filters
| Image | Title | Best For | Price |
|---|---|---|---|
 |
Filtrete 14x30x1 Air Filter, MPR 300, MERV 5, Clean Living Basic Dust 3-Month Pleated 1-Inch Air Filters, 6 Filters (Pack of 1) |
This Filtrete air filter is perfect for homeowners who want to keep their homes feeling clean and fresh by capturing dust and particles from the air in their furnaces, air conditioners, or HVAC systems. It’s also great for families looking for an easy way to maintain better indoor air quality with regular filter changes every three months using the helpful Smart App reminders. |
|
 |
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) |
This Filtrete air filter is perfect for homeowners dealing with allergies, asthma, or dust. It’s ideal for those using Honeywell or Space-Gard air cleaners who want cleaner air every day. |
|
 |
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 who want clean air in their homes, especially if they have pets or suffer from allergies. |
|
 |
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 traps many microparticles and allergens to help keep your home air clean. It’s also great for families or anyone who wants to breathe easier by cutting down on dust and other irritants in the air. |
|
 |
Filtrete 20x30x1 Air Filter, MPR 300, MERV 5, Clean Living Basic Dust 3-Month Pleated 1-Inch Air Filters, 6 Filters |
Ideal for homes that want cleaner air with less work. This 6-pack fits 20x30x1 furnaces and air conditioners, uses 3-in-1 tech to trap particles, and you should change every 90 days. |
|
 |
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 19.88×24.63×4.31 in) |
Is your air full of dust and allergens? If you have Honeywell or Aprilaire Space-Gard systems, you need this. The Filtrete 20x25x4 filter keeps your home clean and healthy all year. |
|
 |
Amazon Basics 14x20x1 Air Filter 6 Pack, MERV 8 AC Furnace Filters (Actual Size: 13.75″ x 19.75″ x 0.75″) |
This filter is perfect for homes that want cleaner air and a well-running furnace. It’s great for people with allergies or dust sensitivity, busy families, and anyone who wants a simple, ready-to-use 6-pack you can replace every 60 to 90 days. |
|
 |
Filtrete 20x30x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 2 Pack (Actual Size 19.81 x 29.81 x 0.81 in) |
This filter is perfect for homes with allergies or asthma, or anyone who wants cleaner air and fewer dust particles. It’s for homes with HVAC systems and people who want easy maintenance with a 2-pack of 3-month pleated filters and Smart App reminders. |
|
 |
Filtrete 18x24x1 Air Filter, MPR 300, MERV 5, Clean Living Basic Dust 3-Month Pleated 1-Inch Air Filters, 6 Filters |
This Filtrete air filter is perfect for homeowners and families who want to keep their indoor air clean and fresh. It works great in furnaces, air conditioners, and HVAC systems to trap unwanted particles and make your home feel healthier. |
|
 |
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) |
The Filtrete 20x25x5 air filter is perfect for people with allergies who want cleaner air in their homes. It fits well in Lennox furnaces and helps block dust, pollen, and pet hair. |
Detailed Reviews
Discover the top 10 AC filters picked by expert analysis and real customer feedback for the best in comfort and value. Each one shines with strong features, top performance, and clear benefits to match your home needs. Dive in to find your perfect filter for cleaner air and easy peace of mind.
1. Filtrete 14x30x1 Air Filter, MPR 300, MERV 5, Clean Living Basic Dust 3-Month Pleated 1-Inch Air Filters, 6 Filters (Pack of 1)
This Filtrete air filter pack has six filters for your home. It grabs bad particles to help make your air clean and fresh.
It uses special tech to trap dirt and dust well. The filter has a 300 MPR and MERV 5 rating for catching many small bits. It fits most HVAC systems to work for people in many homes.
Change your filter every 90 days for best results. Use the Filtrete Smart App to get reminders on time. Filtrete is a top trusted brand for air filters in North America.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Filtrete air filter is perfect for homeowners who want to keep their homes feeling clean and fresh by capturing dust and particles from the air in their furnaces, air conditioners, or HVAC systems. It’s also great for families looking for an easy way to maintain better indoor air quality with regular filter changes every three months using the helpful Smart App reminders.
Ready to Purchase?
2. 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)
The Filtrete 20x25x4 AC Furnace Air Filter is a 2-pack with exact dimensions of 19.88 x 24.63 x 4.31 inches. It fits Honeywell and Space-Gard brand media air cleaners.
This filter has MPR 1000 plus MERV 11 rating. It captures up to 2X more microparticles than MERV alone. It uses Filtrete 3-in-1 technology to trap unwanted particles.
The filter captures dust, lint, and allergens. It is certified asthma and allergy-friendly. It helps provide cleaner air in your home.
Change the filter every 12 months for best results. Filtrete is North America’s most trusted brand of HVAC filters. Use the Filtrete Smart App for reminders to change it.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Filtrete air filter is perfect for homeowners dealing with allergies, asthma, or dust. It’s ideal for those using Honeywell or Space-Gard air cleaners who want cleaner air every day.
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
Simply 20x20x1 Air Filter fits most units. Actual size is 19.75 x 19.75 x 0.75 inches.
It traps dust and pollen. It also catches mold and pet dander. Lasts up to 3 months; Made in USA.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This air filter is perfect for families who want clean air in their homes, especially if they have pets or suffer from allergies.
It’s also great for teachers in schools and workers in offices looking to reduce dust and improve air quality.
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)
Keep your air clean. This is a 2-pack of 3-month filters. It fits 20x25x1 furnaces and ACs.
This uses Filtrete 3-in-1 technology to pull in and trap particles. With MERV 11 and MPR 1000, it catches many tiny particles.
This filter is certified asthma and allergy-friendly. Change it at least every 90 days, or use the Smart App reminders.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Filtrete air filter is perfect for people with allergies or asthma, as it traps many microparticles and allergens to help keep your home air clean. It’s also great for families or anyone who wants to breathe easier by cutting down on dust and other irritants in the air.
Ready to Purchase?
5. Filtrete 20x30x1 Air Filter, MPR 300, MERV 5, Clean Living Basic Dust 3-Month Pleated 1-Inch Air Filters, 6 Filters
Breathe easier with Filtrete Air Filters. This 6-pack helps create a cleaner home. Enjoy fresher air flowing through your space.
This filter’s size is 20x30x1. The exact size is 19.81 x 29.81 x 0.81.
Change filters every 3 months for best results. Use the Filtrete Smart App for reminders. Trust Filtrete for cleaner air today.
| Pros | Cons |
|---|---|
|
|
Perfect For:
Ideal for homes that want cleaner air with less work. This 6-pack fits 20x30x1 furnaces and air conditioners, uses 3-in-1 tech to trap particles, and you should change every 90 days.
Ready to Purchase?
6. 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 19.88×24.63×4.31 in)
This 2-pack filter has a MPR 1550 and MERV 12 rating and fits Honeywell and Aprilaire Space-Gard. The actual size is 19.875 x 24.625 x 4.31 in.
It uses exclusive Filtrete 3-in-1 technology to pull in and trap particles. It’s CERTIFIED asthma and allergy friendly. Use the Filtrete Smart App for reminders.
| Pros | Cons |
|---|---|
|
|
Perfect For:
Is your air full of dust and allergens? If you have Honeywell or Aprilaire Space-Gard systems, you need this. The Filtrete 20x25x4 filter keeps your home clean and healthy all year.
Ready to Purchase?
7. Amazon Basics 14x20x1 Air Filter 6 Pack, MERV 8 AC Furnace Filters (Actual Size: 13.75″ x 19.75″ x 0.75″)
Amazon Basics Air Filters keep your home air clean and fresh. These MERV 8 filters catch dust, lint, and pollen with ease. They help make breathing healthier every day.
The filters have a strong beverage board frame with wire mesh for lasting use. Electrostatic material pulls in tiny allergens as small as 3 microns.
Get this 6-pack for up to 12 months of swaps every 60 to 90 days. Actual size is 13.75″ x 19.75″ x 0.75″. Boost your furnace now with these reliable filters.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This filter is perfect for homes that want cleaner air and a well-running furnace. It’s great for people with allergies or dust sensitivity, busy families, and anyone who wants a simple, ready-to-use 6-pack you can replace every 60 to 90 days.
Ready to Purchase?
8. Filtrete 20x30x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 2 Pack (Actual Size 19.81 x 29.81 x 0.81 in)
Keep your home fresh with the Filtrete 20x30x1 MERV 11 filter. This 2-pack gives you 3-month pleated filtration for cleaner air.
It uses MPR 1000 and MERV 11 to trap tiny particles. It’s CERTIFIED asthma and allergy-friendly. Set reminders with the Smart App and change at 90 days.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This filter is perfect for homes with allergies or asthma, or anyone who wants cleaner air and fewer dust particles. It’s for homes with HVAC systems and people who want easy maintenance with a 2-pack of 3-month pleated filters and Smart App reminders.
Ready to Purchase?
9. Filtrete 18x24x1 Air Filter, MPR 300, MERV 5, Clean Living Basic Dust 3-Month Pleated 1-Inch Air Filters, 6 Filters
Make your home a clean space. The Filtrete 18x24x1 MPR 300 MERV 5 filter helps catch dust and particles. This is a 6-pack of 3-month filters.
The size is 17.81 x 23.81 x 0.81 inches. It uses exclusive 3-in-1 technology to pull in and trap particles.
Change your filter at least every 90 days. The Filtrete Smart App can set 30-, 60-, or 90-day reminders. Filtrete is a trusted brand for home air.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Filtrete air filter is perfect for homeowners and families who want to keep their indoor air clean and fresh. It works great in furnaces, air conditioners, and HVAC systems to trap unwanted particles and make your home feel healthier.
Ready to Purchase?
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)
Breathe easier with the Filtrete 20x25x5 AC Furnace Air Filter! This 2-pack is perfect for keeping your home’s air clean.
This filter is MERV 11 and MPR 1000. It fights allergens. It fits Lennox devices.
Enjoy cleaner air and a more comfortable home. Get your Filtrete filters today!
| Pros | Cons |
|---|---|
|
|
Perfect For:
The Filtrete 20x25x5 air filter is perfect for people with allergies who want cleaner air in their homes. It fits well in Lennox furnaces and helps block dust, pollen, and pet hair.
Ready to Purchase?
Buying Guide
Finding the right AC filter can improve your home’s air. Top filters trap dust and allergens for fresher breathing. They last long and fit most systems.
Many users say Filtrete filters cut dust fast and ease allergy symptoms. One shared how the 20x25x4 MPR 1000 model helped their asthma in a week. Folks love the 3-month change reminders from the Smart App.
- Filter Size: Pick the right size for your HVAC. Measure your old filter to ensure a snug fit. Wrong size lets dirty air slip through.
- MERV Rating: A higher number catches more particles. MERV 11 stops allergens better than MERV 5. Check what works for your home’s needs.
- MPR Rating: Look for higher MPR for more captures. It shows how well the filter grabs tiny bits. Pair it with MERV for best results.
- Lifespan: Choose filters that last 3 to 12 months. Longer ones save on swaps. Dirty ones drop air flow and boost bills.
- Allergy and Asthma Certification: Get filters marked asthma friendly. They trap dander, pollen, and dust. Users with allergies see quick relief.
- Brand Trust: Stick to known names like Filtrete. They test for real world use. Smart apps give change alerts.
- Pack Count: Buy multi-packs for cost savings. Six-packs suit homes with often changes. Two-packs work for thicker models.
- Price Point: Compare costs per filter. Cheaper packs like Amazon Basics fit budgets. Premium ones offer more features.
- Ease of Use: Select filters with quick installs. Electrostatic types need less upkeep. Apps send alerts for easy reminders.
- Pet Hair Protection: If you have pets, pick for dander. Higher MERV stops fur and hair. Users with cats see clear benefits.
- Frame Strength: Go for sturdy frames that hold shape. Wire mesh prevents bending. It keeps air flowing right.
- Compatibility: Ensure it fits your furnace or AC. Check for brands like Honeywell or Lennox. Wrong fit wastes money.