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Actual Size: 9 1/2" x 19 1/2" x 3/4"
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Factory-Direct Low Prices, Made in the USA
Hassle-Free Returns & Free Exchanges
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months
Actual Size: 9 1/2" x 19 1/2" x 3/4"
Free Delivery Factory-Direct Low Prices, Made in the USAHassle-Free Returns & Free ExchangesRESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months
Actual Size: 9 1/2" x 19 1/2" x 3/4"
Free Delivery Factory-Direct Low Prices, Made in the USAHassle-Free Returns & Free ExchangesRESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months
At Filterbuy, we don't cut corners—we craft high-quality air filters right here in the USA and ship them to your doorstep for free. No delays, no gimmicks—just clean air, made easy. With thousands of five-star reviews and filters built for real life & every HVAC system, it's no wonder why over 4 million families trust Filterbuy.
Proudly Made In The USA
Fast, Free Shipping on Every Order
Premium Materials That Go The Distance
85,000+ 5-Star Reviews From Happy Customers
Save Up to 70% Per Filter with Packs
Measure length × width × depth with a tape measure to find the actual size.
Round up each dimension to the nearest whole number to get the nominal size. Example: 9 1/2" x 19 1/2" x 3/4" in → 10x20x1 nominal.
Search by nominal size on our site for the best fit.
If the filter you buy doesn't fit, we'll send you a better size.
MERV stands for Minimum Efficiency Reporting Value—but don't let the technical name fool you. It's just a way to rate how well an air filter traps stuff like dust, pollen, pet dander, and smoke. The higher the MERV number, the more particles it catches—and the cleaner your air will be.
Comparable to:FPR: 4-7
MPR: 600-1000
Dust & Debris
Dust Mites & Particles
Pollen
Mold
Lint
Dander
Comparable to:FPR: 6-9
MPR: 1200-1550
Dust & DebrisDust Mites & ParticlesPollenMoldLintDander
Smoke & Smog
Comparable to:FPR: 10
MPR: 1900-2800
Dust & DebrisDust Mites & ParticlesPollenMoldLintDanderSmoke & Smog
Bacteria
We build every Filterbuy filter to deliver reliable 90-day performance—thanks to smart design and premium materials that do the heavy lifting. Here's what makes the difference:
More pleats = more surface area to capture dust and debris, keeping your air cleaner longer.
Pleats are magnetized to attract and trap microscopic particles—like pet dander, pollen, and smoke.
Engineered to resist warping in extreme temperatures and high humidity.
A layer of metal reinforcement keeps pleats evenly spaced and structurally sound—no sagging, even at high airflow.
Assembled with care. Built to perform. Ships fast, free, and reliably from our U.S. facilities.
Turn Off Your HVAC SystemSafety first.
Remove The Old FilterLook for the airflow arrow and make note of the direction.
Slide In Your New FilterArrow should point toward the system (same direction as before).
Turn Your System Back OnAnd enjoy the fresh, clean air.
Not all air filters are created equal. Pleated filters don't just last longer—they actually clean your air better. Here's how they stack up:
Efficiency:
High (MERV 8–13) – Traps more particles
Lifespan:
90 days – Long-lasting performance
Air Quality:
Excellent – Cleaner, healthier air
Materials:
Recyclable and durable
Efficiency:
Low (MERV 4 or less) – Misses small stuff
Lifespan:
30 days or less – Replace often
Air Quality:
Minimal – Basic protection only
Materials:
Thin, flimsy, and not recyclable
Pleated filters are a no-brainer—more protection, less hassle, and better air for your home.
Changing your filter on time keeps your HVAC system running efficiently—and helps protect your lungs from dust, allergens, and airborne irritants. Here's how often to swap it out based on your needs:
For most homes without pets or special air quality concerns. Great for general upkeep and energy efficiency.
Shedding fur, dander, and allergy triggers can build up fast. Changing your filter every two months helps keep the air fresher and symptoms at bay.
For households affected by smoke, pollution, or respiratory conditions, monthly changes ensure maximum protection.
| Nominal Size | 10 x 20 x 1 inches |
| Actual Size | 9 1/2" x 19 1/2" x 3/4" inches |
| Filter Type | Pleated |
| Media | Electrostatically Charged |
| Frame | Beverage Board |
| MERV Ratings Available | 8, 11, 13 |
| Lifespan | Up to 90 Days |
| Origin | Made in USA |
Struggling with poor indoor air quality or constant dust buildup? At Filterbuy, we understand how frustrating that can be—because we’ve helped thousands of homeowners overcome the same issue. That’s why we’ve engineered our 10x20x1 MERV 11 HVAC and furnace air filters to go beyond basic filtration. Built in the USA and rigorously tested in real homes, our filters capture up to 95% of airborne particles like allergens, pet dander, and fine dust—without restricting airflow. If you're looking for filters trusted by families and made by a team that lives and breathes clean air solutions, you’re in the right place.
MERV 11 captures up to 95% of dust, pollen, pet dander, and smoke.
Backed by EPA data and tested in real-life home environments.
Maintains strong airflow while delivering high-efficiency filtration.
Made in the USA with durable materials and fast, reliable shipping.
Lasts up to 90 days with optional auto-delivery for easy maintenance.
The 10x20x1 MERV 11 HVAC and furnace air filters of Filterbuy are made to provide high-quality home air by trapping 95 percent of the common air particles such as dust, pollen, mold spores, pet dander, and smoke. These filters are ideal in homes with pets, allergies or homes with high dust content and they present the best compromise between high-efficiency filtration and maximum airflow.
Designed and manufactured in the USA with quality, long-lasting materials, every filter can last 3 months. It does not matter whether you are replacing your home air filter or want to upgrade to a higher MERV rating; our MERV 11 filters are reliable ones that you can count on. Choose Filterbuy to have cleaner air, better protection, and quick delivery to your door.
"After working with countless homeowners concerned about indoor air quality, we've found that our 10x20x1 MERV 11 filters consistently deliver the best balance of performance and protection. They're designed based on real-world feedback to trap more allergens without restricting airflow—because we know clean air should never come at the cost of your system's efficiency."
We’ve tested our MERV 11 filters in real homes—and the results align with trusted third-party data. Here’s what makes them stand out:
Filters remove ≥ 20% of tiny airborne particles like smoke and allergens.
Ideal for homes needing advanced filtration.
✅ EPA confirms this level of efficiency for MERV 11 filters.
Trap dust, pollen, pet dander, and more.
Tested in real environments for consistent performance.
✅ Helps reduce allergy and asthma triggers.
Source – Allergy & Asthma Foundation of America
Removes up to 95% of particles (1–10 µm).
Great for wildfire seasons and smoky regions.
✅ EPA suggests MERV 9–12 filters for these conditions.
Cleaner indoor air, less exposure to pollutants, and filters that perform when it matters most—backed by both research and real-life results.
Choosing the right air filter makes a big difference—and we’ve seen it firsthand at Filterbuy.
✅ Proven in real homes – From allergy-sensitive families to wildfire zones, this filter delivers.
✅ Balanced performance – High filtration efficiency without airflow restriction.
✅ Built on experience – Designed based on real customer feedback and in-house testing.
MERV 11 is the ideal middle ground—more effective than basic filters, without the cost or system strain of hospital-grade options.
It’s not just about trapping particles—it’s about creating a healthier, more comfortable living space.
We trust it in our own homes—and that’s why we confidently recommend it for yours.
If you want reliable protection, cleaner air, and a filter backed by experience and performance—you’ll find it with Filterbuy’s 10x20x1 MERV 11.
Follow these quick steps to upgrade your home’s air quality:
Pick Your Pack
Choose a 3-pack, 6-pack, or more of 10x20x1 MERV 11 filters.
Plan Filter Changes
Replace every 90 days (or every 60 if you have pets or allergies).
Subscribe & Save
Set up auto-delivery for convenience and cost savings.
Order with Confidence
Made in the USA ✔️
Fast, free shipping ✔️
Satisfaction guaranteed ✔️
A 10x20x1 MERV 11 air filter is designed to trap up to 95% of airborne particles like dust, pollen, pet dander, mold spores, and smoke. It offers advanced filtration ideal for homes with allergies, pets, or high dust levels.
Typically every 90 days. However, if you have pets, allergies, or live in a high-pollution area, changing it every 60 days is recommended for optimal air quality.
No. MERV 11 is safe for most residential HVAC systems and provides a great balance between particle filtration and airflow. Always check your system’s specifications to confirm compatibility.
MERV 11 filters capture smaller and more particles than MERV 8, including finer dust, smoke, and pet allergens—making them better for households needing higher air quality protection.
Yes. All Filterbuy air filters, including the 10x20x1 MERV 11 model, are proudly manufactured in the USA using high-quality materials for reliable performance.
