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  • Every order is carefully packed and shipped by our team in Indiana. Your purchase helps support American jobs and hardworking families right here in the Midwest. Our AIRx Furnace / AC Filters and ClearChoice Fridge Filters are made in the USA.

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  • Spend $70 or more and your order ships free! We'll get your filters out the door fast so you can enjoy clean air and water.*

    * Orders under $70 ship for $5.99.

  • Shop with confidence! If you're not completely satisfied with your purchase, you have up to one year to return it for a refund or exchange. We stand behind every filter we sell.

    Learn More

  • Every order is carefully packed and shipped by our team in Indiana. Your purchase helps support American jobs and hardworking families right here in the Midwest. Our AIRx Furnace / AC Filters and ClearChoice Fridge Filters are made in the USA.

Cart 0

We don't know what's in your water,
but we know there's nothing in your cart.

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20x24x1 AIRx HEALTH Air Filter

AIRx 20x24x1-HEALTHOur#: 194894
Made in USA
20x24x1 AIRx HEALTH Air Filter
20x24x1 AIRx HEALTH Air Filter
20x24x1 AIRx HEALTH Air Filter
20x24x1 AIRx HEALTH Air Filter
20x24x1 AIRx HEALTH Air Filter
20x24x1 AIRx HEALTH Air Filter
20x24x1 AIRx HEALTH Air Filter
20x24x1 AIRx HEALTH Air Filter
20x24x1 AIRx HEALTH Air Filter
20x24x1 AIRx HEALTH Air Filter
20x24x1 AIRx HEALTH Air Filter
20x24x1 AIRx HEALTH Air Filter
Compatibility guarantee — Wrong fit or not happy - we'll make it right, up to a whole year
Change every 3 months
Change every 3 months Swap on schedule for best performance
Made with pride in Greenwood, Indiana
Made with pride in Greenwood, Indiana Your purchase supports American jobs
MERV
MERV Find your ideal filtration level
Compatibility guarantee
Compatibility guarantee Wrong fit or not happy - we'll make it right, up to a whole year

Filter Description

If you want to the ultimate solution to air quality concerns in your home, this is the air filter for you! The charged synthetic media in the filter attracts and captures very small particles that can irritate your lungs. We offer a convenient shopping experience with air conditioner filters and furnace filters in your size. We'll deliver your filters right to your front door!
Pleated media provides an extended surface area for highly-efficient filtration
MERV 13 rating means the filter removes 90% of particles from 1-3 microns in size (including bacteria and particles that carry viruses)
Meets "LEED" green building standards for new and existing buildings
Replace every 90 days under normal use
Made with pride in the USA
100% free returns on all filters

$33.99

$42.49
Code DF20 · Save 20%
$33.99 per filter
Code DF20 · Save 20%
SAVE 0% 1-pack

Pack Size

Filtration Level

Compare all →
In Stock, Ships onWednesday, Sep. 30th
Add $70.00 more to unlock free shipping! Add this and you're just from free shipping! Buy this and your order ships free!

Orders over $70 ship free. $5.99 otherwise.

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Compare Side-by-Side

MERV Filter Comparison

Choose the filtration level that fits your home — then tap Select to update your cart above.

MERV 8
Standard
DUST
RECOMMENDED
MERV 11
Superior
ALLERGY
OPTIMAL
MERV 13
Optimal
HEALTH
Best For
STANDARD
Residential / Commercial
Healthy Families
SUPERIOR
Residential / Commercial
Allergy Sufferers
OPTIMAL
Residential / Commercial
Premium Protection
Comparable
Ratings		 MPR 600 & FPR 5 MPR 1000–1200 & FPR 7 MPR 1500–1900 & FPR 10
Filtration Captures ≥90% of large particles Captures ≥95% of large particles Captures ≥98% of large particles
Dust, Lint & Debris
Mold, Pollen
Dander, Dust Mites
Smoke & Smog
Bacteria
Odor, VOCs
Your
Filter
MERV 8
Standard
DUST
Best For Residential / Commercial, Healthy Families
Comparable MPR 600 & FPR 5
Filtration Captures ≥90% of large particles
Dust, Lint & Debris
Mold, Pollen
Dander, Dust Mites
Smoke & Smog
Bacteria
Odor, VOCs
RECOMMENDED
MERV 11
Superior
ALLERGY
Best For Residential / Commercial, Allergy Sufferers
Comparable MPR 1000–1200 & FPR 7
Filtration Captures ≥95% of large particles
Dust, Lint & Debris
Mold, Pollen
Dander, Dust Mites
Smoke & Smog
Bacteria
Odor, VOCs
OPTIMAL
MERV 13
Optimal
HEALTH
Best For Residential / Commercial, Premium Protection
Comparable MPR 1500–1900 & FPR 10
Filtration Captures ≥98% of large particles
Dust, Lint & Debris
Mold, Pollen
Dander, Dust Mites
Smoke & Smog
Bacteria
Odor, VOCs

Swipe or use arrows · tap to select

MERV (Minimum Efficiency Reporting Value) is an ASHRAE industry standard for measuring air filter efficiency.

Compatibility guarantee

Wrong fit, leak, or just doesn’t work? We’ll send the right one. Free return shipping for all orders.

365-day satisfaction

Not happy? Send it back any time in the first year — we’ll make it right. Yes, even an open pack you’ve been running for months.

No-hassle returns

No restocking fees, no return-merch authorization mazes — just start a return and our helpful Customer Experience team will assist.

Filter Maintenance

Is it time to change your Filter?

Generally, we recommend you replace your air filters every 90 days. Find out below if you should change your filters more often.

If someone in your home has asthma or allergies change your filter every

6 Weeks

to ensure indoor air quality is at its best.

If you have pets change your filter every

2 Months

to avoid shedding and odor buildup.

If you have young children change your filter every

2–3 Months

as having clean air is even more important with children in your home.

Filter Specifications

What does this filter remove?

Filtration capabilities
Nominal Size
20 × 24 × 1"
Actual Size
19 ½ × 23 7⁄16 × ¾"
Filter Media
Electrostatically charged 100% synthetic gradient media that does not support microbiological growth
Filter Support Grid
30 gauge galvanized expanded metal grid
Frame
Moisture resistant double-wall beverage board
Max Temperature
180F (82C) continuous service, peak 225F (107C)
Max Humidity
Resistant to 100% R.H.
Initial Resistance
0.25" WC
Rated Velocity
300 FPM

Performance Testing

Performance Rating

MERV (µm) PSE (%) 0.3-1.0 1.0-3.0 3.0-10 Airflow Rate (CFM) 492 738 983 1229 983 * * Max Rated Airflow
13 51 88 98 Initial Resistance (IWC) 0.13 0.21 0.29 0.39 0.29 *
MERV
13
(µm) PSE (%)
0.3-1.0 51
1.0-3.0 88
3.0-10 98
Airflow Rate (CFM) Initial Resistance (IWC)
492 0.13
738 0.21
983 0.29
1229 0.39
983 * 0.29 *
* Max Rated Airflow

Replaces These Filters

National Filter Sales

PF-03-202401-6

About This Product

Is this the right air filter for you?

If you want to the ultimate solution to air quality concerns in your home, this is the air filter for you!  The charged synthetic media in the filter attracts and captures very small particles that can irritate your lungs. We offer a convenient shopping experience with air conditioner filters and furnace filters in your size.  We'll deliver your filters right to your front door!

  • Pleated media provides an extended surface area for highly-efficient filtration
  • MERV 13 rating means the filter removes 90% of particles from 1-3 microns in size (including bacteria and particles that carry viruses)
  • Meets "LEED" green building standards for new and existing buildings
  • Replace every 90 days under normal use
  • Made with pride in the USA
  • 100% free returns on all filters

Customer Reviews

4.4 4.4 out of 5 stars
32 verified reviews
5★
(25)
4★
(2)
3★
(0)
2★
(2)
1★
(3)
4
4.4 / 5 (32)
Kat 304 days ago
5
does a good job, we breathe better now in the house, will continue to buy these filters
Richard P. 452 days ago
5
They came in sufficient time they fit good they look good
BARBARA R. 657 days ago
5
Ordering for years
BARBARA R. 831 days ago
5
Good product. Using many years. Quick and easy ordering and shipping
Pamela M. 1146 days ago
5
I use this company for all of my filter needs. I have 2 air purifiers, new furnace w/ AC unit and of course my refrigerator. Great value and great products
Robert W. 1178 days ago
5
I have not had any problems with this product at all.
Bryan W. 1469 days ago
4
Well. I haven't had enough time to tell how well these work. They arrived unmarked/ no labeling except for size. As a lung transplant patient I would have preferred the Health label as seen on your advertisement. No merv rating on these? How do I know the are what they should be?
Terri B. 1964 days ago
5
Great product, wrong size, my fault
John B. 2203 days ago
5
Although these filters are on the high end in cost comparatively, the quality is excellent.
Kirk 2295 days ago
5
Great filters.
melvin s. 2737 days ago
5
Always pleased when ordering and your salesman know how to help plus I like the discount thanks ???
Deb 2805 days ago
5
Furnace filters are great for eliminating dust in my house. We live in the woods and heat with our wood burner. I need a good dust catcher filter.
Billy D. 3235 days ago
5
Yes! We now have AC filters that fit, they even have a higher rating, and are cheaper than the ones we were getting at home depot (and I love home depot.)
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