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Actual Size: 9.5x24.5x1"
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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: 9.5x24.5x1"
Free Delivery Factory-Direct Low Prices, Made in the USAHassle-Free Returns & Free ExchangesRESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months
Actual Size: 9.5x24.5x1"
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: 9.5x24.5x1" in → 10x25x1 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 25 x 1 inches |
| Actual Size | 9.5 x 24.5 x 1" 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 |
At Filterbuy, we know firsthand how vital clean indoor air is for your family's comfort and health—because we manufacture and test our 10x25x1 MERV 11 HVAC and furnace air filters in-house, right here in the USA. Unlike generic options, our filters are engineered to strike the perfect balance between powerful allergen capture and optimal HVAC airflow—based on decades of customer feedback and real-world performance data. If you're looking for filters that truly deliver on both protection and performance, you've found your trusted source.
Captures up to 95% of dust, pollen, mold, and pet dander.
Made in the USA with durable, airflow-efficient design.
Backed by EPA and AAAAI research for trusted performance.
Replace every 3 months; available in convenient packs.
Trusted by HVAC pros and homeowners for clean air.
Filterbuy’s 10x25x1 MERV 11 HVAC & furnace air filters are designed to enhance your home’s air quality by capturing up to 95% of airborne particles—including dust, pollen, mold spores, pet dander, and smoke. Built with electrostatically charged synthetic media and reinforced with a durable frame, these filters offer superior performance without restricting airflow, making them ideal for allergy sufferers or anyone seeking cleaner indoor air.
Each filter is proudly made in the USA and built to last up to 3 months, providing long-lasting value and consistent protection. Whether you’re replacing a single unit or stocking up for the season, Filterbuy delivers factory-direct quality and fast shipping to your doorstep—so you can breathe easier, sooner.
"After years of working directly with homeowners and HVAC professionals, we’ve fine-tuned our MERV 11 filters to deliver exceptional air quality without compromising system efficiency. Our 10x25x1 filters are engineered based on real-world feedback and performance testing—because clean air isn’t a luxury, it’s a necessity."
We design our MERV 11 filters based on both scientific research and real feedback from homeowners. Here’s why they work:
People spend ~90% of their time indoors.
Indoor air often contains 2–5 times more pollutants than outside.
Our customers report noticeable air quality improvements after switching to MERV 11 filters. 🔗 EPA
Captures 65–79% of particles sized 1.0–3.0 microns (dust, mold, pet dander).
Offers a strong balance between filtration and airflow.
Trusted by HVAC professionals and tested in real-world conditions. 🔗 EPA – MERV Ratings
50%+ of U.S. homes contain six or more indoor allergens.
Many Filterbuy customers with asthma or allergies report symptom relief.
Filters help during peak allergy seasons. 🔗 AAAAI
These insights—rooted in science and Filterbuy’s direct experience—explain why our filters are a smart choice for healthier home air.
Making the right filter choice impacts more than your HVAC—it affects your air, health, and home. Here’s why our 10x25x1 MERV 11 filters stand out:
Years of customer feedback and testing guide our filter design.
Trusted by HVAC professionals nationwide.
MERV 11 captures harmful particles like dust, allergens, and dander.
Maintains strong airflow—no system strain.
We believe MERV 11 is the ideal choice for most homes.
It offers the right mix of protection and efficiency.
Filterbuy delivers filters made with care, performance, and trust in mind.
✅ When clean, breathable air matters, Filterbuy is the reliable choice.
Choose Your Pack
Select a single, 3-pack, or bulk option.
Check Your Size
Make sure 10x25x1 fits your HVAC or furnace.
Order from Filterbuy
Get fast, direct-to-door shipping.
Replace Every 90 Days
Set a reminder to keep air quality high.
Need Other Options?
Explore different sizes or MERV ratings.
MERV 11 is a filtration rating that indicates the filter can capture 65–79% of particles between 1.0–3.0 microns—such as dust, pollen, mold spores, and pet dander—without significantly reducing airflow. It’s ideal for homes with allergies, pets, or high air quality needs.
Typically every 3 months. However, if you have pets, allergies, or high HVAC usage, you may need to replace it every 1–2 months for optimal performance.
No—when properly installed, Filterbuy’s MERV 11 filters are designed to provide strong filtration while maintaining efficient airflow. They're a safe and effective upgrade from lower MERV ratings.
Yes. MERV 11 filters capture smaller particles and offer better protection against allergens, fine dust, and airborne irritants—making them more suitable for households with sensitivities or higher indoor air quality standards.
Absolutely. All Filterbuy filters, including the 10x25x1 MERV 11, are proudly manufactured in the USA using high-quality materials and rigorous quality control for long-lasting performance.
