10x28x1 MERV 11 Pleated Air Filter
Actual Size: 9.5x27.5x0.75
Free Delivery 
Factory-Direct Low Prices, Made in the USA
Hassle-Free Returns & Free Exchanges
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months
10x28x1 MERV 11 Pleated Air Filter
Actual Size: 9.5x27.5x0.75
Free Delivery Factory-Direct Low Prices, Made in the USAHassle-Free Returns & Free ExchangesRESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months
10x28x1 MERV 11 Pleated Air Filter
Actual Size: 9.5x27.5x0.75
Free Delivery Factory-Direct Low Prices, Made in the USAHassle-Free Returns & Free ExchangesRESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months
About
- This is a list 10x28x1 MERV 11 air filter replacement for your furnace, air conditioner, heat pump, or HVAC system
- Actual air filter size: 9.5x27.5x0.75
- MERV 11 synthetic media (comparable with MPR 1000/1200 and FPR 7) offers superior protection from dust, pollen, pet dander, mold, smog and more by trapping 95% of airborne particles without impacting air flow
- High-quality construction means electrostatically charged pleated filter media, reinforced wire backing for structural integrity, and a durable frame to resist heat and humidity
- Built to last 3 months. 300% longer than fiberglass models
- 100% manufactured in the United States and designed with recyclable materials
- Learn more about 10x28x1 Air Filters
Top-Rated Filters. American Made. Delivered Free.
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
Things to Know About Filter Sizes
Nominal Size
- The rounded size printed on your filter or HVAC unit (e.g., 10x28x1).
- Usually whole numbers to make identifying and ordering easier.
- A label for compatibility—not the exact measurement.
Actual Size
- The true, trimmed dimensions of the filter (e.g., 9.5x27.5x0.75 inches).
- Filters are manufactured slightly smaller so they slide into the filter slot without forcing.
- If you don't know your nominal size, measure your filter to get the actual size, then round up to find the nominal size to search on our site.
Why the difference?
- Nominal sizes simplify shopping and standardize categories.
- Actual sizes ensure the filter fits properly inside your HVAC's filter rack.
How To Find Your Nominal Size When You Don't Know It
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: 9.5x27.5x0.75 in → 10x28x1 nominal.
Search by nominal size on our site for the best fit.
Why Getting the Right Size Matters
- Too small? Air can bypass the filter, reducing air quality and efficiency.
- Too big? It won't fit—risking bent frames and airflow issues.
- Just right? You get maximum performance, better filtration, and cleaner air.
Free Exchange Policy
If the filter you buy doesn't fit, we'll send you a better size.
What's a MERV Rating?
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.
Merv 8
Comparable to:FPR: 4-7
MPR: 600-1000
Dust & Debris
Dust Mites & Particles
Pollen
Mold
Lint
Dander
Merv 11
Comparable to:FPR: 6-9
MPR: 1200-1550
Dust & DebrisDust Mites & ParticlesPollenMoldLintDander
Smoke & Smog
Merv 13
Comparable to:FPR: 10
MPR: 1900-2800
Dust & DebrisDust Mites & ParticlesPollenMoldLintDanderSmoke & Smog
Bacteria
MERV 8
Comparable to:FPR: 4-7MPR: 600-1000
MERV 11
Comparable to:FPR: 6-9MPR: 1200-1550
MERV 13
Comparable to:FPR: 10MPR: 1900-2800
What Makes Our Filters Last 90 Days? Quality, From the Inside Out
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:
Pleated Design
More pleats = more surface area to capture dust and debris, keeping your air cleaner longer.
Electrostatically Charged Media
Pleats are magnetized to attract and trap microscopic particles—like pet dander, pollen, and smoke.
Synthetic Beverage Board Frame
Engineered to resist warping in extreme temperatures and high humidity.
Aluminum Dual Wire Backing
A layer of metal reinforcement keeps pleats evenly spaced and structurally sound—no sagging, even at high airflow.
Made in the USA
Assembled with care. Built to perform. Ships fast, free, and reliably from our U.S. facilities.
How to Install Your Filter in 4 Simple Steps
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.
Never forget to replace your air filter again.
- Save 5% on every order
- Choose Your Delivery Schedule
- Edit, Skip, or Cancel Anytime.
Pleated Filters vs. Fiberglass—What's the Difference?
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:
Pleated Filters
Efficiency:
High (MERV 8–13) – Traps more particles
Lifespan:
90 days – Long-lasting performance
Air Quality:
Excellent – Cleaner, healthier air
Materials:
Recyclable and durable
Fiberglass Filters
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.
How Often Should You Change Your Filter?
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:
Every 90 Days
Standard ScheduleFor most homes without pets or special air quality concerns. Great for general upkeep and energy efficiency.
Every 60 Days
If You Have Pets or AllergiesShedding fur, dander, and allergy triggers can build up fast. Changing your filter every two months helps keep the air fresher and symptoms at bay.
Every 30 Days
If You Have Respiratory Concerns or Live in Smog/Wildfire ZonesFor households affected by smoke, pollution, or respiratory conditions, monthly changes ensure maximum protection.
Want to stay on track? Set a reminder—or skip the stress with auto-delivery so fresh filters show up right when you need them.
Don't Just Take Our Word For It...
Got More Questions? We've Got Answers.
Product Specifications
| Nominal Size | 10 x 28 x 1 inches |
| Actual Size | 9.5 x 27.5 x 0.75 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 |
Buy the Best 10x28x1 MERV 11 HVAC & Furnace Air Filters for Home from Filterbuy
At Filterbuy, we’ve spent years refining what makes an air filter truly effective for today’s homes. Our 10x28x1 MERV 11 HVAC and furnace air filters aren’t just built to industry standards—they’re crafted with real-world performance in mind. Based on customer feedback and in-house testing, we engineered these filters to trap over 90% of airborne particles commonly found in households with pets, children, or allergy sufferers. If you're serious about improving indoor air quality while protecting your HVAC system, this filter delivers the performance you need—straight from our family-owned U.S. facility to your door.
TL;DR Quick Answers
Buy the Best 10x28x1 MERV 11 HVAC & Furnace Air Filters for Home from Filterbuy
For homeowners seeking cleaner indoor air without sacrificing HVAC efficiency, Filterbuy’s 10x28x1 MERV 11 air filters offer a strong balance of performance and value. They capture common airborne particles like dust, pollen, pet dander, and mold spores while maintaining steady airflow—helping extend system lifespan and reduce energy strain. With U.S.-manufactured quality, consistent sizing, and subscription options for hassle-free replacements, Filterbuy makes it easy to maintain healthier air and reliable system performance year-round.
Top Takeaways
MERV 11 captures 90%+ of dust, pollen, and allergens.
Made in the USA with durable, high-quality materials.
Balances strong filtration with efficient airflow.
Costs less than $1/month per person for cleaner air.
Easy 90-day replacement for consistent performance.
Why Choose Filterbuy’s 10x28x1 MERV 11 Air Filters for Your Home?
Filterbuy 10x28x1 MERV 11 air filters are a good and safe bet when it comes to maintaining the air in your home clean and your HVAC system performing to the best of its potential. These filters are designed to trap more than 90 percent of air particles, such as dust, pollen, mold spores, pet dander, and smoke, and make the indoor climate healthier, particularly to allergy sufferers, pet or child-owning families, and other allergy-prone individuals.
Our filters are made in the USA with high-quality and durable materials to ensure the structure is preserved as time goes by to avoid hindering the airflow and putting your HVAC system under pressure. All filters are precision-cut to fit snugly and are pleated to maximize area in order to provide high-quality filtration.
We test our filters in real-life conditions and we use customer feedback to improve our filters to perform better than the typical filters. Whether you are replacing your existing filter or upgrading to better your home air quality, our 10x28x1 MERV 11 filter is used by thousands of people because of its high efficiency, long lasting, and the quick delivery.
“After working with homeowners across the country and analyzing thousands of filter performance reports, we designed the 10x28x1 MERV 11 filter to meet real indoor air quality needs—not just technical specs. Our goal was to create a filter that families can rely on for protection against common airborne irritants without sacrificing HVAC efficiency. We stand behind every filter we ship because we build them like we’re putting them in our own homes.”
Supporting Statistics & First-Hand Insights
We design our filters based on research, testing, and customer feedback. Here’s why our 10x28x1 MERV 11 filter stands out:
Indoor Air Pollution Is Worse Than You Think
Americans spend ~90% of their time indoors.
Indoor air can be 2–5× more polluted than outdoor air.
Source: EPA.gov
What we’ve seen: Many customers report fewer allergy symptoms after switching to MERV 11.
MERV 11 Filters Trap More Harmful Particles
Captures ~20% of fine particles (0.3–1 µm).
Filters out dust, smoke, mold spores, and pet dander.
Source: EPA Technical Bulletin
Our testing: Consistently balances airflow and filtration in real-world conditions.
Cost-Effective and Health-Focused
Adds less than $1/month per person.
Helps reduce respiratory issues and improve IAQ.
Source: IAQScience.LBL.gov
Our insight: Affordable protection that pays off in cleaner air and HVAC efficiency.
Final Thought & Opinion
Choosing the right air filter matters—and we’ve seen the difference it makes.
Why Our MERV 11 Filters Stand Out:
Balanced ProtectionCaptures over 90% of harmful particles without restricting airflow.
Built on Real ExperienceWe've tested this filter in our labs, our homes, and thousands of customer HVAC systems.
Driven by Customer FeedbackContinuous product improvements come directly from real-world use cases.
Our Perspective:
Air quality shouldn’t be a compromise. You deserve clean air and a well-functioning HVAC system—and this filter delivers both.
Quality pays off. A few extra dollars on a high-efficiency filter can mean fewer allergies, less dust, and longer equipment life.
Made for everyday households. From families with pets to allergy-sensitive individuals, we’ve designed this filter with real homes in mind.
Bottom line:
You don’t need to choose between performance and protection. With Filterbuy’s 10x28x1 MERV 11 filter, you get both—backed by experience, testing, and trust.
Next Steps
Take action to improve your home's air quality today:
Check Your Filter Size
Make sure your HVAC system uses 10x28x1 filters.
Size is usually printed on your current filter or system label.
Select MERV 11
Ideal for capturing dust, pollen, pet dander, and mold spores.
Great for homes with allergies or pets.
Order from Filterbuy
Fast shipping.
Made in the USA.
Set a Reminder
Replace filters every 90 days.
Replace more often with pets or allergy concerns.
Browse Other Options
Need a different size or MERV rating?
Explore our full product catalog.
Frequently Asked Questions
1. What does MERV 11 mean in air filters?
MERV 11 indicates the filter’s efficiency at capturing particles. It traps over 90% of airborne contaminants like dust, pollen, pet dander, and mold spores—making it ideal for homes with allergies, pets, or high indoor air quality needs.
2. How often should I replace a 10x28x1 MERV 11 filter?
Replace every 90 days for typical households. If you have pets, allergies, or run your HVAC system frequently, consider replacing every 60 days for optimal performance.
3. Is 10x28x1 a standard air filter size?
While not the most common, 10x28x1 is a real and specific size used in certain HVAC systems. Always double-check your current filter or system specs before ordering.
4. Will a MERV 11 filter restrict airflow in my HVAC system?
No—MERV 11 filters from Filterbuy are designed for high efficiency without significantly restricting airflow. They're engineered to maintain proper system performance while improving air quality.
5. Can I use a MERV 11 filter if my system currently uses a lower MERV rating?
In most cases, yes. MERV 11 is compatible with most residential HVAC systems. However, check your system’s manual or consult a technician to be sure it supports higher-efficiency filters.
Upgrade Your Air Quality with the Best 10x28x1 MERV 11 Filters
Take the next step toward cleaner, healthier indoor air by choosing Filterbuy’s high-performance 10x28x1 MERV 11 HVAC and furnace filters. Shop now to enjoy reliable filtration, improved airflow, and convenient delivery options that keep your home protected year-round.