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🚚 Free Shipping | Top-Brands HVAC Filters | 5⭐ Trusted!
🚚 Free Shipping | Top-Brands HVAC Filters | 5⭐ Trusted!
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NaturalAire HVAC, Furnace and AC Replacement Air Filters

Improve your indoor air quality with NaturalAire filters from RememberTheFilter.com. Available in MERV 8, 10, and 13 ratings, these filters capture dust, pollen, dander, and more.

Why NaturalAire?

  • Superior Filtration: Third-party certified to trap airborne particles.
  • Energy Efficient: Electrostatically charged media keeps HVAC systems clean, saving energy.
  • Durable: Clay-coated frames and wire backing ensure lasting performance.

MERV Ratings

  • MERV 8: Captures dust, pollen, mold spores (3+ microns).
  • MERV 10: Filters pet dander, fine dust (1+ micron).
  • MERV 13: Traps bacteria, smoke for maximum protection.

Benefits

  • Cost-effective bulk options.
  • Eco-friendly materials.
  • Custom sizes available.

Shop trusted NaturalAire filters at RememberTheFilter.com with free shipping on orders over $50. Upgrade your air quality today!

Filters

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$ 95.99 - $ 182.99
$ 95.99 - $ 182.99
$ 95.99 - $ 182.99
$ 95.99

NaturalAire Standard MERV 8 Filters (12 pack)

The NaturalAire Standard air filter removes dramatically more potentially harmful airborne particles, compared to basic fiberglass air filters. It ...

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$ 95.99 - $ 182.99
$ 95.99 - $ 182.99
$ 95.99 - $ 182.99
$ 95.99
$ 137.99 - $ 261.99
$ 137.99 - $ 261.99
$ 137.99 - $ 261.99
$ 137.99

NaturalAire Microparticle MERV 10 Filters (12 pack)

NaturalAire Microparticle Pleated Air Filter, MERV 10 Removes additional airborne allergens and contaminants, to help protect the ones you love. M...

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$ 137.99 - $ 261.99
$ 137.99 - $ 261.99
$ 137.99 - $ 261.99
$ 137.99
$ 174.99 - $ 262.99
$ 174.99 - $ 262.99
$ 174.99 - $ 262.99
$ 174.99

NaturalAire Healthy Ultra MERV 13 Filters (12 pack)

NaturalAire Healthy Ultra Pleated Air Filter, MERV 13 Hospital-grade air filtration provides maximum protection for your home’s environment. Hospi...

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$ 174.99 - $ 262.99
$ 174.99 - $ 262.99
$ 174.99 - $ 262.99
$ 174.99
$ 191.76 - $ 191.76
$ 191.76
$ 247.99
$ 247.99 - $ 247.99
$ 247.99

15 x 24 x 1/4 Naturalaire Expanded Aluminum Kwik Kut Filters KK1601 (24 filters)

This 15" x 24" x 1/4" trim to size filter is made of washable aluminum. Traps dust, dirt, and pollen. Case of 24 filters. 

$ 191.76 - $ 191.76
$ 191.76
$ 247.99
$ 247.99 - $ 247.99
$ 247.99
$ 109.99 - $ 109.99
$ 109.99
$ 109.99 - $ 109.99
$ 109.99

15x24x1/4 Naturalaire Kwik Kut Foam Filter KK500 - 24 pack

Flanders Precisionaire Naturalaire KK500, 15" x 24" x 1/4", Foam Poly Packed, Kwik Kut Filter. Simply cut the filter to the desired size. Reduces D...

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$ 109.99 - $ 109.99
$ 109.99
$ 109.99 - $ 109.99
$ 109.99
$ 179.99 - $ 179.99
$ 179.99
$ 179.99 - $ 179.99
$ 179.99

15x24x1/4 Naturalaire Plastic Back Foam Kwik Kut Filters - KK1000 (24 pack)

Precisionaire KK1000, 15" x 24" x 1/4", Plastic Back Foam, Kwik Kut Room Air Conditioner Filter. Foam filter reinforced with a plastic backing, thi...

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$ 179.99 - $ 179.99
$ 179.99
$ 179.99 - $ 179.99
$ 179.99
$ 124.99 - $ 124.99
$ 124.99
$ 124.99 - $ 124.99
$ 124.99

15x24x3/8 Naturalaire Kwik Kut Fiberglass Filter KK600 - 24 Pack

Naturalaire KK600 Cut-to-Fit filter made by Flanders Precisionaire, 15" x 24" x 3/8", Spun Fiberglass, Poly Packed Kwik Kut Air Conditioner Filter....

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$ 124.99 - $ 124.99
$ 124.99
$ 124.99 - $ 124.99
$ 124.99
$ 78.99 - $ 78.99
$ 78.99
$ 78.99 - $ 78.99
$ 78.99

20x30x1 Naturalaire Cut-to-Fit Natural Fiber Washable Filter (6 pack)

NaturalAire Cut-To-Fit Media Pad (SM1006) Cut-To-Fit Media Pad, Up to MERV 4 Natural fiber media pad Low airflow resistance reduces energy costs E...

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$ 78.99 - $ 78.99
$ 78.99
$ 78.99 - $ 78.99
$ 78.99
$ 208.99 - $ 208.99
$ 208.99
$ 208.99 - $ 208.99
$ 208.99

Custom Size NaturalAire MERV 8 Filters (12 Filters)

The NaturalAire Standard MERV 8 air filter removes dramatically more potentially harmful airborne particles, compared to basic fiberglass air filte...

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$ 208.99 - $ 208.99
$ 208.99
$ 208.99 - $ 208.99
$ 208.99
Naturalaire MERV 10 air filters custom size
$ 228.99 - $ 228.99
$ 228.99
$ 228.99 - $ 228.99
$ 228.99

Custom Size NaturalAire MERV 10 Filters (12 Filters)

The NaturalAire Microparticle air filter removes potentially harmful airborne particles to keep the air in your home or office clean and healthier....

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$ 228.99 - $ 228.99
$ 228.99
$ 228.99 - $ 228.99
$ 228.99
Naturalaire MERV 13 custom size air filters
$ 248.99 - $ 248.99
$ 248.99
$ 248.99 - $ 248.99
$ 248.99

Custom Size NaturalAire Ultra MERV 13 Filters (12 Filters)

Pleated Air Filter, MERV 13, 1-Inch Hospital-grade air filtration provides maximum protection for your homeÕs environment. MERV 13 rating: Reduces...

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$ 248.99 - $ 248.99
$ 248.99
$ 248.99 - $ 248.99
$ 248.99
$ 57.14 - $ 112.99
$ 57.14 - $ 112.99
$ 57.14 - $ 112.99
$ 57.14

NaturalAire Odor Eliminator Filters with Baking Soda (4 Pack)

The NaturalAire Odor Eliminator with Baking Soda air filter neutralizes common household odors. It uses the power of baking soda to rid your home o...

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$ 57.14 - $ 112.99
$ 57.14 - $ 112.99
$ 57.14 - $ 112.99
$ 57.14
10x20x1 NaturalAire Standard MERV 8 Filters (12 pack)
$ 98.99 - $ 98.99
$ 98.99
$ 98.99 - $ 98.99
$ 98.99

10x20x1 NaturalAire Standard MERV 8 Filters 84858.011020 (12 pack)

The NaturalAire Standard air filter removes dramatically more potentially harmful airborne particles, compared to basic fiberglass air filters. It ...

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$ 98.99 - $ 98.99
$ 98.99
$ 98.99 - $ 98.99
$ 98.99
12x12x1 NaturalAire Standard MERV 8 Filters (12 pack)
$ 97.99 - $ 97.99
$ 97.99
$ 97.99 - $ 97.99
$ 97.99

12x12x1 NaturalAire Standard MERV 8 Filters 84858.011212 (12 pack)

The NaturalAire Standard air filter removes dramatically more potentially harmful airborne particles, compared to basic fiberglass air filters. It ...

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$ 97.99 - $ 97.99
$ 97.99
$ 97.99 - $ 97.99
$ 97.99
12x20x1 NaturalAire Standard MERV 8 Filters (12 pack)
$ 95.99 - $ 95.99
$ 95.99
$ 95.99 - $ 95.99
$ 95.99

12x20x1 NaturalAire Standard MERV 8 Filters 84858.011220 (12 pack)

The NaturalAire Standard air filter removes dramatically more potentially harmful airborne particles, compared to basic fiberglass air filters. It ...

View full details
$ 95.99 - $ 95.99
$ 95.99
$ 95.99 - $ 95.99
$ 95.99
12x24x1 NaturalAire Standard MERV 8 Filters (12 pack)
$ 99.99 - $ 99.99
$ 99.99
$ 99.99 - $ 99.99
$ 99.99

12x24x1 NaturalAire Standard MERV 8 Filters 84858.011224 (12 pack)

The NaturalAire Standard air filter removes dramatically more potentially harmful airborne particles, compared to basic fiberglass air filters. It ...

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$ 99.99 - $ 99.99
$ 99.99
$ 99.99 - $ 99.99
$ 99.99
10x24x1 NaturalAire Standard MERV 8 Filters (12 pack)
$ 150.99 - $ 150.99
$ 150.99
$ 150.99 - $ 150.99
$ 150.99

10x24x1 NaturalAire Standard MERV 8 Filters 84858.011024 (12 pack)

The NaturalAire Standard air filter removes dramatically more potentially harmful airborne particles, compared to basic fiberglass air filters. It ...

View full details
$ 150.99 - $ 150.99
$ 150.99
$ 150.99 - $ 150.99
$ 150.99
10x10x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
$ 106.99 - $ 106.99
$ 106.99
$ 106.99 - $ 106.99
$ 106.99

10x10x1 NaturalAire Microparticle MERV 10 Filters 85256.011010 (6 pack)

The NaturalAire Microparticle air filter removes potentially harmful airborne particles to keep the air in your home or office clean and healthier....

View full details
$ 106.99 - $ 106.99
$ 106.99
$ 106.99 - $ 106.99
$ 106.99
10x20x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
$ 68.99 - $ 68.99
$ 68.99
$ 68.99 - $ 68.99
$ 68.99

10x20x1 NaturalAire Microparticle MERV 10 Filters 85256.011020 (6 pack)

The NaturalAire Microparticle air filter removes potentially harmful airborne particles to keep the air in your home or office clean and healthier....

View full details
$ 68.99 - $ 68.99
$ 68.99
$ 68.99 - $ 68.99
$ 68.99
10x24x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
$ 112.99 - $ 112.99
$ 112.99
$ 112.99 - $ 112.99
$ 112.99

10x24x1 NaturalAire Microparticle MERV 10 Filters 85256.011024 (6 pack)

The NaturalAire Microparticle air filter removes potentially harmful airborne particles to keep the air in your home or office clean and healthier....

View full details
$ 112.99 - $ 112.99
$ 112.99
$ 112.99 - $ 112.99
$ 112.99
10x30x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
$ 109.99 - $ 109.99
$ 109.99
$ 109.99 - $ 109.99
$ 109.99

10x30x1 NaturalAire Microparticle MERV 10 Filters 85256.011030 (6 pack)

The NaturalAire Microparticle air filter removes potentially harmful airborne particles to keep the air in your home or office clean and healthier....

View full details
$ 109.99 - $ 109.99
$ 109.99
$ 109.99 - $ 109.99
$ 109.99
12x12x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
$ 88.99 - $ 88.99
$ 88.99
$ 88.99 - $ 88.99
$ 88.99

12x12x1 NaturalAire Microparticle MERV 10 Filters 85256.011212 (6 pack)

The NaturalAire Microparticle air filter removes potentially harmful airborne particles to keep the air in your home or office clean and healthier....

View full details
$ 88.99 - $ 88.99
$ 88.99
$ 88.99 - $ 88.99
$ 88.99
12x18x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
$ 108.99 - $ 108.99
$ 108.99
$ 108.99 - $ 108.99
$ 108.99

12x18x1 NaturalAire Microparticle MERV 10 Filters 85256.011218 (6 pack)

The NaturalAire Microparticle air filter removes potentially harmful airborne particles to keep the air in your home or office clean and healthier....

View full details
$ 108.99 - $ 108.99
$ 108.99
$ 108.99 - $ 108.99
$ 108.99
12x20x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
$ 68.99 - $ 68.99
$ 68.99
$ 68.99 - $ 68.99
$ 68.99

12x20x1 NaturalAire Microparticle MERV 10 Filters 85256.011220 (6 pack)

The NaturalAire Microparticle air filter removes potentially harmful airborne particles to keep the air in your home or office clean and healthier....

View full details
$ 68.99 - $ 68.99
$ 68.99
$ 68.99 - $ 68.99
$ 68.99

Your Trusted Source For Naturalaire Filters

We offer a complete selection of high-performance Naturalaire HVAC filters. Whether you're replacing filters in your home, office, or commercial HVAC system, you'll find trusted options in MERV 1–13, including pleated, fiberglass, washable, and specialty filters.

All Naturalaire filters are made in the USA and sourced from leading manufacturers like AAF Flanders and Koch Filter. Choose from standard and custom sizes to ensure a proper fit for your system—and enjoy clean air backed by over 50 years of HVAC experience.

Filter Fit Guarantee™

Have concerns about ordering Naturalaire filters online? Your purchase is backed by our Filter Fit Guarantee™.

Free Delivery

We will ship your Naturalaire filters direct to your door, for free! All orders in the domestic U.S over $50.

Highly Rated Naturalaire Filters

NaturalAire HVAC, Furnace and AC Replacement Air Filters from leading manufactuerers.

Have questions about Naturalaire Filters?

What are Naturalaire filters designed for?

Naturalaire are designed to capture airborne particles and improve system performance in a wide range of HVAC and air filtration applications.

How do I know if Naturalaire are right for my system?

The best way to determine if Naturalaire are right for your system is to check your current filter specs, system requirements, or reach out to our team—we’re happy to help you choose the correct option.

Are Naturalaire filters used in residential or commercial systems?

Naturalaire can be used in a variety of applications depending on system compatibility. Some are ideal for homes, while others are built for commercial, industrial, or specialized environments.

How often should Naturalaire filters be replaced or maintained?

Replacement schedules for Naturalaire filters vary based on environment, usage, and filter type. Always follow manufacturer guidelines or consult your facility manager or HVAC technician for best results.

What efficiency levels are available in Naturalaire?

Naturalaire filters are available in a range of filtration levels—from basic to high-efficiency—based on your air quality goals and system requirements.

Are your Naturalaire filters made in the USA?

Most of our Naturalaire replacements are proudly made in the USA by trusted manufacturers known for quality and performance.

What makes RememberTheFilter.com a trusted source for Naturalaire filters?

With nearly 20 years online and over 50 years of HVAC experience, we offer only high-quality Naturalaire replacement filter from leading brands—backed by real expertise and personalized support.

What MERV Rating Is Right for You?

MERV (Minimum Efficiency Reporting Value) measures how well an air filter captures particles. A higher number means better filtration—but it must still be compatible with your HVAC system. Here's a breakdown to help you choose the right filter for your home or business.

MERV 1–4

Basic protection. Captures larger particles like dust, lint, and pollen. Minimal airflow resistance. Best for older systems or basic residential use.

✔ Highest airflow
✘ Does not trap fine particles

MERV 8

Great balance of airflow and filtration. Captures mold spores, dust mites, pet dander, and pollen. Most common choice for residential HVAC systems.

✔ Good airflow
✔ Effective for everyday air quality needs

MERV 10

Enhanced dust-holding capacity and improved particle removal compared to MERV 8. Traps finer particles like mold spores, hair spray, and fabric fibers.

✔ More efficient than MERV 8
✔ Still maintains strong airflow

MERV 11

Captures smaller particles like auto emissions, smoke, and some airborne bacteria. Ideal for homes with pets or allergy concerns. Moderate impact on airflow.

✔ Great for allergies
✘ May reduce airflow in older systems

MERV 13

Highest residential-grade filtration. Captures airborne bacteria, tobacco smoke, and fine particles. Recommended for asthma, smoke exposure, or medical-grade needs.

✔ Best indoor air quality
✘ Not suitable for all systems without airflow evaluation

How to Measure HVAC Filters

To find the correct replacement, measure the length, width, and depth of your existing filter. Most filters are labeled with a nominal size (like 16x24x1), which is a rounded number—actual measurements are often slightly smaller. Accurate sizing ensures a proper fit and helps maintain airflow efficiency.

How to Measure HVAC Filter

Step 1: Remove Old Filter

Turn off your system and remove the existing filter. Look for printed dimensions on the frame—this is usually the nominal size.

Step 2: Measure Actual Size

Use a tape measure to get exact dimensions (length × width × depth). Round down to the nearest 1/8" if needed—example: 15-5/8" × 23-5/8" × 3/4".

Step 3: Match or Order Custom

If your measurements don’t match a standard size, we offer custom filters made to your exact dimensions.

Trust RememberTheFilter.com for Premium HVAC Filters & Expert Service

With nearly 20 years online and over 50 years of combined HVAC filter experience, we’re more than just a retailer—we’re filtration experts. As a proud member of the National Air Filtration Association (NAFA), we serve residential, commercial, and government customers across the U.S. Our filters are made in America and sourced from leading manufacturers like AAF Flanders, Koch Filter, and more.

We believe in clean air, fair prices, and helping people—not algorithms.

  • ✅ Nearly 20 years online helping homeowners and businesses nationwide
  • ✅ 50+ years of combined HVAC filtration experience
  • ✅ Member of NAFA – National Air Filtration Association
  • ✅ Made in the USA – filters from AAF Flanders, Koch, and more
  • ✅ Exact Filters® – custom built to your specs, down to 1/8"
  • ✅ Trusted by schools, clinics, and commercial buildings across the U.S.

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