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Actual Size: 19 1/2" x 19 1/2" x 3/4"
Free Delivery 
Factory-Direct Low Prices, Made in the USA
Hassle-Free Returns & Free Exchanges
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months
Actual Size: 19 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: 19 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: 19 1/2" x 19 1/2" x 3/4" in → 20x20x1 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
Comparable to:FPR: 10
MPR: 1900-2800
Dust & DebrisDust Mites & ParticlesPollenMoldLintDanderSmoke & Smog
Odors
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 | 20 x 20 x 1 inches |
| Actual Size | 19 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, Carbon |
| Lifespan | Up to 90 Days |
| Origin | Made in USA |
At Filterbuy, we’ve spent years refining our 20x20x1 odor eliminator HVAC and furnace air filters based on real customer feedback and in-house testing. Our filters don’t just mask odors—they’re built with advanced activated carbon technology that targets and neutralizes pet smells, kitchen fumes, and airborne pollutants at the source. Manufactured in the USA and rigorously quality-checked, these filters reflect our commitment to clean air and healthier living. When you buy from Filterbuy.com, you’re not just getting a filter—you’re getting our experience, innovation, and promise of breathable, odor-free air delivered to your door.
Powerful Odor Control
MERV 11+ filters with activated carbon.
Targets odors from pets, smoke, and cooking.
Cleaner Indoor Air
Indoor air can be 2–5x more polluted than outside.
Standard filters often aren't enough.
Trusted & USA-Made
Built, tested, and shipped from the U.S.
Trusted by families, hosts, and property managers.
Fast, Visible Results
Odor reduction in 24–48 hours.
Backed by real customer results.
Easy & Hassle-Free
Quick install, fast shipping, and auto-delivery options.
Looking for a reliable way to eliminate household odors and improve indoor air quality? Filterbuy’s 20x20x1 odor eliminator HVAC and furnace filters are engineered with high-efficiency filtration and activated carbon layers that capture odor-causing particles—like pet dander, smoke, and kitchen fumes—before they circulate through your home.
Proudly made in the USA, these filters offer a tight fit for standard home HVAC systems and deliver long-lasting performance without restricting airflow. Backed by real-world testing and thousands of satisfied customers, they combine MERV-rated protection with specialized odor control technology you can trust.
Whether you're replacing filters in a new system or upgrading from basic fiberglass options, Filterbuy makes it easy to shop online, customize your subscription, and enjoy fast, free shipping to your door.
“After helping thousands of homeowners tackle stubborn indoor odors, we’ve learned that not all air filters are created equal. That’s why our 20x20x1 odor eliminator filters use a dual-layer design with activated carbon to neutralize smells at the molecular level—something basic filters simply can’t do. We don’t just manufacture filters—we engineer healthier, fresher air based on what real homes need.”
We've helped thousands of homeowners improve indoor air. These stats—and our experience—prove why odor-eliminating filters matter:
EPA research confirms this, especially in homes with pets, cooking, or smoking.
In some cases, indoor air is up to 100x worse.
We’ve tested homes where odors lingered despite regular filter changes. 🔗 EPA Source
That’s why our filters are built for real-world use—removing smells, dust, and allergens.
Customers with kids and pets see the biggest difference. 🔗 EPA Source
Our filters use carbon for a reason—it works.
California Air Resources Board backs this: carbon reduces VOCs and odors.
We include it in every 20x20x1 odor eliminator we build. 🔗 CARB Source
We've worked with thousands of homeowners, renters, and property managers who struggled with indoor odors. Here's what we've learned:
Basic filters trap dust, but they don’t tackle odors.
Many people don’t realize odor control requires targeted technology.
We’ve seen homes where air “felt clean” only after switching to carbon-enhanced filters.
Designed based on real customer feedback and field testing.
Powered by activated carbon that neutralizes smells at the source.
Made in the USA with quality and airflow performance in mind.
If you're still using fiberglass or generic filters, you're missing out on:
Fresher air
Better odor control
At Filterbuy, we don't just sell filters—we build solutions based on what real homes need. And we breathe the results every day.
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Follow these quick steps to improve your home's air quality:
1. Confirm Your Filter Size
Make sure you need a 20x20x1 filter.
Not sure? Check our sizing guide.
2. Choose Your Filter
Select a MERV 11+ filter with activated carbon.
All filters are USA-made and ready to ship.
3. Set Up Auto-Delivery (Optional)
Never forget to change your filter.
Subscribe for scheduled shipments.
4. Install in Minutes
No tools required.
Need help? View install tips.
5. Enjoy the Results
Smell improvement in 24–48 hours.
Join thousands who trust Filterbuy.
Odor eliminator filters are specially designed with activated carbon, which absorbs and neutralizes odors from pets, smoke, cooking, and more. Regular filters may trap dust, but don’t eliminate smells.
Yes, if your system requires a 20x20x1 filter size, it will fit. Always check your current filter or HVAC manual to confirm the correct size before purchasing.
We recommend replacing every 60–90 days for optimal odor control and airflow. Homes with pets, allergies, or heavy use may benefit from more frequent changes.
No. Our 20x20x1 odor filters are engineered to balance high-efficiency odor removal with low airflow resistance, keeping your HVAC system running smoothly.
Yes! All Filterbuy filters, including our odor eliminator line, are proudly manufactured in the USA with high-quality materials and rigorous quality control.
