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Actual Size: 13.5x35.5x1"
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





Actual Size: 13.5x35.5x1"
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





Actual Size: 13.5x35.5x1"
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: 13.5x35.5x1" in → 14x36x1 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 | 14 x 36 x 1 inches |
| Actual Size | 13.5 x 35.5 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 |
Finding a 14x36x1 MERV 13 air filter that truly fits and performs isn’t easy—we know because we’ve manufactured millions of them right here in our U.S. facilities for over a decade. Our engineers designed these filters to trap the tiniest particles—dust, pollen, smoke, even pet dander—without straining your HVAC system. The result? Cleaner air, longer system life, and peace of mind backed by first-hand testing and customer feedback. With Filterbuy, you get more than a filter—you get proven performance built from real-world experience.
MERV 13 works hard – Captures tiny particles like allergens, smoke, and bacteria.
Health boost – Helps reduce asthma and allergy triggers.
HVAC protection – Improves efficiency and extends system life.
Sized right – 14x36x1 fit ensures proper airflow and performance.
Filterbuy quality – American-made, tested, and ships free.
MERV 13 ratings for air filters are still a mystery to many homeowners. The acronym, which stands for Minimum Efficiency Reporting Value, denotes the level of effectiveness of a given filter in trapping particles of various sizes. The higher the MERV value, the greater the efficiency of the filter in capturing particles.
A filter with a MERV 13 rating is the best option when it comes to the quality of the air indoors among all other lower-rated filters. Being able to capture particles between 0.3 and 1.0 microns in size, MERV 13 filters not only trap bacteria but also the smoke from tobacco, the droplets from sneezing, and even the tiniest droplets of cooking oil. This is a very high rating that stands for an excellent level of purification of the indoor air in a house, thus preventing the vast majority of the particles, which, by now, may have become the most common allergy cases in the community.
Still, in some cases, a MERV 13-rated filter may not be the most sensible option for certain homes. Due to the considerable air resistance of this filter, a powerful HVAC system is required in order to accommodate it. So, the homeowners must evaluate their air quality needs, the performance of their HVAC systems, and then decide on the appropriate filter with an MERV rating.
Air filters of 14x36x1 are a great advantage as they mainly improve the indoor quality of the air. Efficiently, they capture all sorts of air pollutants, including dust, pollen, mold spores, and bacteria. Thus, these filters contribute to a healthy living environment by raising air quality.
The dimensions and MERV 13 rating of these filters provide the most effective compromise between air flow and the capture of the smallest particles. By the complete elimination of the particles that are in the air, to a very large extent, they decrease, causing respiratory problems which result from the bad quality of the air. Those who have allergies, asthma, or other lung-related diseases will get a lot of help from it.
One more main reason for the increased energy efficiency is the 14x36x1 air filters. Their prevention of debris buildup in the HVAC system is the main cause of the difference between them and the low-rated ones. On the one hand, the system's strain is less, while on the other hand, there is less energy consumption, and the equipment has a longer lifespan.
Filterbuy is a home air filtration brand that people trust and is known for its commitment to product quality and customer satisfaction. This company has taken the HVAC and furnace air filter market by storm.
Four reasons make Filterbuy products an excellent choice:
Excellence in Quality: The products that Filterbuy designs are compatible with various HVAC systems. Using top-notch materials, their filters not only make the air inside your house fresher but also of quality.
Customer Focus: Customer satisfaction is the most important thing for Filterbuy. They have a great customer service team that is always ready to help you with any questions or problems.
Extensive Selection: Filterbuy offers a variety of sizes and MERV ratings so that you can find the right filter for your HVAC system.
Ease in Purchase: The process of buying filters from Filterbuy is really simple. Their easy-to-use website makes it simple to find and order the filters you need.
It is very necessary to install HVAC filters in the right way for the system to work well. First, you need to identify the most suitable filter. Filterbuy's 14x36x1 MERV 13 filters are the ones that are mainly chosen due to their high efficiency, which results in a lot of satisfied customers.
Once the right filter is in place, the next step should be turning off your HVAC system for safety. Identifying where the filter is located is next; usually, the filter compartment is in the air return vent or inside the furnace. While removing the previous filter, the handling instructions should be observed, especially the arrows indicating the direction in which the air flows. The correct direction at the time of installing a new filter is very important.
Your new filter should be carefully slid into the designated space, ensuring that the arrows are pointing in the same direction as the airflow. A proper installation will be a tight fit without the need to use force. After the filter is put into its place, a test for the filter's stability should follow when the HVAC system is re-energized. A good way to keep a filter working effectively is through regular HVAC check-ups.
If you hold to these clear step roots, your HVAC system will run without loss in efficiency and will provide you with quality, stylish, and comfortable air throughout your house.
It is a combination of regular maintenance, proper use, and good habits that will lead to the result of a MERV 13 filter performance being optimized and its service life prolonged. These steps not only improve the quality of the air that is breathed in but also increase the efficiency of the HVAC systems.
It is a must to have filters that are clean all the time. Clean filters result in good airflow, less HVAC system strain, and lower energy costs. What is more, if this is ignored, a system failure can be experienced, resulting in expensive repairs.
Moreover, the role of air flow as a means of optimization should not be underrated. Thus, for instance, one can easily increase the efficiency of an HVAC system by simply removing the five obstructions located by the air intake vent, which is the most natural way for the system to get fresh air.
First of all, you can increase the filter efficiency and the filter's lifetime by following the instructions below:
Check your filter regularly, at least once a month
If necessary, change your filter every 60-90 days or more often if it becomes dirty
Make sure that the air intake vents are not blocked by any furniture or other objects
Set the filter in the correct position so that there is no air leakage.

“After manufacturing millions of filters and listening to thousands of families, one thing is clear—clean air isn’t just about dust control. The right MERV 13 filter protects your health, safeguards your HVAC system, and delivers peace of mind you can feel with every breath.”
Clean air at home isn’t just about comfort—it’s backed by research and proven in real homes.
We spend most of our lives indoors.
Americans spend 90% of their time indoors.
Indoor air can be 2–5× more polluted than outdoor air (EPA).
After producing millions of filters, we’ve seen how quickly they fill with dust, pollen, and unseen particles—proof of what you’re breathing in daily.
Asthma and allergies are widespread.
Nearly 1 in 10 U.S. adults and 6% of children live with asthma (CDC).
Many of our customers with asthma notice fewer flare-ups after upgrading to MERV 13.
Children are especially at risk.
About 2 out of 3 kids with asthma also have allergies (CDC).
Parents tell us their children sleep and breathe more easily when high-efficiency filters cut down allergens.
Why It Matters
The stats show how serious indoor air quality is.
Our first-hand testing and customer feedback prove MERV 13 filters make a real difference.
Cleaner air, fewer symptoms, and longer HVAC life—benefits you’ll see and feel.
Clean air at home isn’t optional—it’s essential. Research shows indoor air can be 2–5× more polluted than outdoors, and millions live with asthma or allergies that make this even more serious.
What we’ve seen at Filterbuy:
After producing millions of filters, we know how quickly they fill with dust, pollen, and fine particles.
Customers often tell us they notice less dust, fewer allergy flare-ups, and HVAC systems running smoothly with MERV 13 filters.
Why it matters:
Cleaner air = healthier family.
Better filtration = longer HVAC system life.
Consistent use = peace of mind every day.
Our opinion: The real value of a MERV 13 filter isn’t just particle capture. It’s the confidence that your home’s air is safer, your system is protected, and your family can breathe easier.
Check your size
Confirm you need 14x36x1.
Look for the size on the frame or measure your old filter.
Choose your filter
Select MERV 13 for top protection.
Unsure? Our team can guide you.
Order easily
Find your exact size online.
Filters are quality-tested and ship free.
Install correctly
Turn off your HVAC.
Follow airflow arrows for a snug fit.
Replace regularly
Change every 60–90 days (more often with pets/allergies).
Use auto-delivery for worry-free clean air.
Most homes do well with MERV 8–13. MERV 13 offers the best protection against fine particles like allergens and smoke if your system can handle it.
MERV 8 is for basic dust and lint. MERV 11 is better for pollen, pet dander, and mold. MERV 13 is best for allergies, asthma, smoke, and fine particles.
Typically 60–90 days, but replace more often with pets, allergies, or heavy HVAC use.
Yes, if your HVAC system is in good condition. However, some older or weaker systems may struggle with airflow. Always check manufacturer guidelines.
Yes. Filters rated too high can restrict airflow, causing strain, reduced efficiency, or damage to the blower motor.
MERV 13 provides superior filtration, capturing allergens, smoke, and bacteria. MERV 8 is fine for dust, but won’t catch finer particles.
All Filterbuy filters are made in the USA at family-owned facilities.
No. MERV 11 is commonly used in homes and balances good airflow with stronger filtration.
Hospitals typically use MERV 13–20, depending on the area. Operating rooms often use HEPA (MERV 17+).
No. Disposable filters are not washable. Cleaning damages the media and reduces effectiveness—always replace.
The filter will be clogged, restricting airflow, raising energy bills, and possibly damaging your HVAC system. Air quality also suffers greatly.
Prices range from $10–$30 per filter, depending on size and MERV rating. Custom sizes or higher MERV ratings cost more.