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Actual Size: 15x28x1
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





Actual Size: 15x28x1
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





Actual Size: 15x28x1
RESIDENTIAL 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: 15x28x1 in → 15x28x1 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 & Debris
Dust Mites & Particles
Pollen
Mold
Lint
Dander
Smoke & Smog
Comparable to:FPR: 10
MPR: 1900-2800
Dust & Debris
Dust Mites & Particles
Pollen
Mold
Lint
Dander
Smoke & 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 | 15 x 28 x 1 inches |
| Actual Size | 15 x 28 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 |
Looking for stronger defense against allergens, pet dander, and other hidden irritants in your air? Filterbuy’s 15x28x1 MERV 11 HVAC & Furnace Air Filters are precision-engineered in the USA with over a decade of manufacturing expertise. They’re designed to capture finer particles than standard filters from pollen and mold spores to household dust so you can enjoy fresher indoor air while protecting your heating and cooling system from unnecessary wear.
Powerful Protection, Easy Airflow MERV 11 filters capture stubborn particles — pollen, pet dander, smoke, and fine dust — while keeping your HVAC system breathing freely.
Proven Allergen Defense Research from the EPA and CDC shows MERV 11 technology can help reduce allergens and harmful airborne particles in your home.
Engineered for Lasting Performance FilterBuy’s American-made design — from optimized pleats to deep-loading media — holds more dust, maintains airflow, and extends filter life.
Healthier, Quieter Homes Customers report less visible dust, fewer allergy flare-ups, and smoother, quieter HVAC operation.
Stay on Schedule for Peak Protection Replacing your filter regularly ensures cleaner air, lower energy bills, and longer equipment life.
Clean indoor air isn’t a luxury — it’s a foundation for a healthy, comfortable home. One of the best ways to protect your family (and your HVAC system) is by choosing the right filter, and that’s where MERV ratings come in.
MERV, or Minimum Efficiency Reporting Value, measures how effectively a filter captures airborne particles. The higher the rating, the more pollutants it can remove from pollen and pet dander to fine household dust. Filters with MERV 11 or higher excel at trapping the small irritants that trigger allergies and clog your system, so your air stays fresh and your lungs stay happy.
Seasonal sneezes don’t have to be part of your home décor. Our 15x28x1 MERV 11 filters are designed to capture stubborn particles like pollen, pet hair, and dust mites helping you breathe easier while keeping your HVAC running smoothly.
Cleaner Air, Less Irritation: Say goodbye to sniffles and itchy eyes during allergy season.
Balanced Performance: High-capacity pleats trap fine particles without restricting airflow.
Long-Lasting Value: Each filter is built to perform for up to three months, reducing the need for frequent changes.
Think of them as quiet heroes working behind the scenes, giving your family fresher, healthier air with minimal effort.
Not all air filters are created equal. At FilterBuy, we pair American manufacturing expertise with a relentless focus on quality and customer needs.
Durable Construction: Every filter is crafted to hold more dust and resist collapse, outlasting cheap alternatives.
Smart Engineering: MERV 11 strikes the ideal balance between filtration strength and smooth airflow.
Trusted by Homeowners: Thousands of 5-star reviews reflect our commitment to cleaner air and dependable service.
When you choose FilterBuy, you’re investing in better air — and the peace of mind that comes with protecting your family and home.
Selecting the right filter doesn’t have to be complicated. Here’s how to match your home’s needs with the right solution:
Check the MERV Rating: Aim for MERV 11 or higher if you have pets, allergies, or want added protection.
Think About Lifespan: Most quality filters last up to 90 days — set reminders so replacements stay on track.
Match to Your Lifestyle: Allergy-prone household? Multiple pets? Choose a filter built for your specific challenges.
A thoughtful choice now helps keep your air cleaner and your HVAC running at peak efficiency.
A well-maintained HVAC system doesn’t just save money — it makes your whole home healthier. Replacing filters on schedule ensures better airflow, fewer allergens, and less strain on your equipment.
With FilterBuy MERV 11 filters, it’s simple: swap them every few months, enjoy consistent comfort, and keep energy bills in check. It’s one of the easiest ways to safeguard your family’s air quality while protecting your HVAC investment.

After testing hundreds of filter designs in our own lab, we’ve discovered that clean, healthy air isn’t just about using a tighter weave. The real secret is balancing high-efficiency filtration with steady airflow. That’s why every 15x28x1 MERV 11 filter we make is precision-engineered to capture stubborn particles — like pollen, pet dander, and fine dust — without straining your HVAC system. It’s a proven way to protect both your family’s lungs and the equipment that keeps your home comfortable.
At FilterBuy, we back every MERV 11 filter with trusted research and years of in-house testing. Here’s why these filters make such a difference in real homes:
EPA data confirms that MERV 11 filters capture:
≥ 85% of particles sized 3–10 μm
≥ 65% of particles sized 1–3 μm
≥ 20% of particles as small as 0.3–1 μm
Our own lab results echo these findings. Optimized pleat spacing and deeper media hold more dust while maintaining smooth airflow.
According to the CDC, higher-efficiency filters can significantly improve air quality, especially when ventilation is limited.
We consistently see fast improvements in homes that switch to properly sized MERV 11 filters — less dust, fewer allergens, and more efficient HVAC operation.
The EPA Indoor airPLUS program highlights that MERV 11+ filters help reduce PM2.5, tiny particles linked to respiratory and cardiovascular issues.
Families managing allergies or asthma often notice fewer irritants and an overall fresher home after upgrading to our MERV 11 models.
Clean indoor air is more than a comfort — it’s essential for your family’s health and for keeping your HVAC system at its best. Research from the EPA and CDC confirms that MERV 11 filters capture harmful particles while allowing airflow to stay strong.
At FilterBuy, our testing and customer feedback show that the best results come from pairing fine-particle capture with steady airflow. That’s why every 15x28x1 MERV 11 filter we make features carefully engineered pleats, high-capacity media, and a precise fit to lock in dust without overworking your system.
Homeowners who choose FilterBuy report:
Fewer allergy symptoms
Less visible dust
Quieter, more efficient HVAC performance
Our Opinion: A well-built MERV 11 filter is one of the smartest, simplest ways to protect your lungs and your HVAC investment. Keep replacements on schedule, and you’ll enjoy fresher air, cleaner rooms, and longer-lasting equipment — results we’ve seen firsthand in homes across the country.
Confirm Your Size
Double-check that your system uses a 15x28x1 filter so you get the perfect fit.
Select Your MERV 11 Pack
Choose the quantity that matches your home’s needs — single filters or value packs for easy reorders.
Order from FilterBuy.com
Enjoy fast, free U.S. shipping and convenient subscription options that keep replacements on schedule.
Install with Care
Slide the filter in with the airflow arrows facing the furnace or blower for peak performance.
Stay on Schedule
Replace every 90 days, or sooner if you have pets, allergies, or high dust levels.
Breathe the Difference
Experience cleaner air, less dust, and a quieter, more efficient HVAC system — all thanks to a filter built to protect what matters most.
No. MERV 11 is safe for most modern HVAC systems when filters are changed on schedule. It captures smaller particles — like pet dander, mold spores, and fine dust — without restricting airflow in well-maintained equipment.
Exception: very old or undersized systems may need a lower-resistance filter.
Absolutely, in many homes.
MERV 8 handles dust, lint, and basic pollen.
MERV 11 adds protection against finer irritants: mold spores, pet dander, and light smoke.
If you have pets, allergies, or want noticeably cleaner air, MERV 11 is a smart upgrade.
MERV 13 traps even smaller particles — including some bacteria, smoke, and virus carriers. It’s excellent for asthma or near-hospital-level filtration, but its higher resistance means your HVAC must be able to handle it. If you’re unsure, stick with MERV 11 for a proven balance of airflow and filtration.
HEPA filters remove 99.97% of particles down to 0.3 microns, but most residential HVAC systems aren’t designed for HEPA because of the extreme airflow restriction. For whole-house use, MERV 11 (or MERV 13 if supported) is usually the right call unless you own a HEPA-compatible system.
For most households, MERV 8–13 is ideal:
MERV 8: Basic defense against dust and pollen.
MERV 11: Great mix of airflow and finer filtration (our most popular).
MERV 13: Maximum filtration most residential units can safely handle.
Typically 2–3 months. Homes with pets, smokers, or heavy dust may need a change every 30–60 days, while low-traffic, no-pet homes can stretch closer to 90 days.
Not if your system is designed for medium-efficiency filters and you replace them before they clog. Problems only occur when airflow is blocked by an overdue filter or when a system isn’t sized for higher MERV levels.
Look for trusted brands with consistent sizing and strong reviews:
FilterBuy – American-made quality and great value
Honeywell
3M Filtrete
Aprilaire
Choosing a reputable brand ensures reliable fit and performance.
Yes, if you exceed what your HVAC can handle:
Restricted airflow can strain the blower motor.
Filters may load faster and require more frequent changes. Always confirm your system specs before moving to MERV 13 or above.
A pleated filter with a MERV rating between 8 and 13 offers the best mix of efficiency, airflow, and lifespan for central HVAC systems.
Healthcare facilities often rely on MERV 14–20, with HEPA (17–20) in operating rooms or isolation areas. These levels are much higher than most home systems can accommodate.
A MERV 11 will catch some smoke particles but not the smallest ones. For better smoke protection, use MERV 13 or higher — or supplement with a standalone HEPA purifier.