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Your cart is empty.Product Description
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Measurement System
Minimum Efficiency Reporting Value (MERV)
Rates the ability of filters to trap particles on a scale of 1-20 (smallest microns captured at 20).
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Standard Protection (90%)
MERV 8 Air Filters
Perfect for almost any home or business that wants great indoor air quality at a reasonable rate.
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Superior Protection (95%)
MERV 11 Air Filters
Perfect for homes or businesses accounting for factors like pets, smokers, and allergy sufferers.
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Optimal Protection (98%)
MERV 13 Air Filters
Perfect for larger homes or businesses, and those who want the best possible filtration experience.
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Odor Eliminator (90%)
MERV 8 Air Filters with Activated Carbon
Perfect for homes or businesses that want to inhibit unpleasant smells with reliable MERV 8 quality.
Choosing the Correct Filter Size
Nominal Size vs. Actual Size
The nominal size is a shorthand number rounded to the nearest whole or half inch, normally in a larger font (ex: 16 x 20 x 1). Whereas the actual size is an exact measurement, normally in a smaller font, that depicts the filter's precise dimensions (ex: 15.50 x 19.50 x 0.75). All filters have both.
Measuring Your Air Filter
If your current air filter does not have a dimension listed on the frame, use a tape measure to record the width x length x depth to find the actual size. Then round these measurements up to the nearest inch to find a corresponding nominal size, which will be easier to locate when searching online.
About Us
- The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.
Better Air For All
Championing indoor air quality
At Filterbuy, we care about the air you breathe because we consider it the foundation for maintaining a healthy lifestyle. Cleaner air is always better, and we are firm believers that everyone, everywhere deserves to breathe it. This is why we work around the clock to ensure that you, your family, and your community have access to clean indoor air, free of allergens and pollutants, that enables you to routinely live free and breathe freely.
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Finding the Perfect Fit
No matter the size, we've got you covered
We now offer a variety of expert services and hundreds of custom air filter sizes that are compatible with a near infinite number of systems, because we know that when it comes to clean air, there isn’t a one size fits all solution. This enables us to always provide value with a quality product that empowers you to protect your home or business, regardless of your filtration needs.
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Green Means Clean
Refreshing new look, same great quality
Our new, green frames are constructed with the same high quality materials that you have grown accustomed to. We made the decision to switch to this greener design to help symbolize the peace of mind that comes from knowing your home or business is being properly cared for. When you see Filterbuy green, you can exhale with the confidence that you are breathing crisp, pure, fresh air.
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100% American Made
Local sourcing and manufacturing
From our first air filter produced in 2013, we have proudly built our business in the USA, now manufacturing in Alabama, California, Florida, Illinois, North Carolina, Pennsylvania, Texas, and Utah. This robust, homegrown network gives us the unique ability to swiftly fulfill diverse, custom orders directly to the doors of households and businesses across the country at premium rates.
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Subscribe and Save
Don't let changing your filter be a burden
The nature of air filters requires them be replaced regularly, but opting into a subscription service can help to simplify that process. All you need to do is find the right product and choose the delivery interval. We do the rest by making sure your filters arrive on time as requested. The majority of our Amazon catalog is already eligible for the program, and you even get a discount on every delivery when you enroll, making it an easy choice.
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Where We Came From
Nearly 70 years of giving back
Our small, family-owned and operated company has evolved since its inception in 1958 to the filtration business that you know and love today with thousands of employees serving millions of customers. As our team continues to expand to new neighborhoods across the country, we make sure to stay true to our values by keeping our commitment to community investment and personal aid at every possible opportunity.
mmeadows
2025-09-02 14:46:38
Had a small issue with order (maybe was caused by me, not sure) either way around it, they went far above to satisfy me as the customer and I have placed more orders through them. Furnace filters, which are very high quality and exactly what I was looking for. Not cheap knock-offs.
Rose S.
2025-08-05 11:43:36
fit like a glove, buy in bulk its cheaper
John
2025-07-28 15:47:04
The MERV 13 works great with my residential HVAC system. Air quality and filtration are amazing! Highly recommended!!
Chris B
2025-07-18 18:06:44
Product received was not blue, as in the advertised picture.Appears they are switching over to generic "white" color for their entire line. It IS marked as MERV 13 on the side of the individual filters, so I'm hoping that's actually what I received.I do like Filterbuy for price/value, filtration, and airflow vs the bigger name filters. I've never had a problem with my coils freezing up like some other brands.I'd recommend
WeiRen Luo
2025-06-22 19:39:03
Faster delivery and great product
Matt Seegers
2025-06-18 14:37:23
My wife and I struggled for months to source the proper HVAC air filter for our system. A large part of the issue may have been due to the fact that the HVAC hardware in the attic is clearly a Frankenstein situation where previous owners had HVAC techs "rebuild" the whole indoor evaporator mechanism with a bunch of random parts from at least 3-5 different brand names.Anyways, I was tasked with managing this part of the condo once I moved in a few years ago and it was a struggle to figure out how it should be properly set up. After buying several filters of the wrong format/size we finally were able to confirm with an HVAC tech the proper size and proper installation of said filter.These filters are great. The only thing you should be concerned about is how well your HVAC system can handle higher-grade filters. I knew I wanted a HEPA-graded filter (I did my best to vacuum/clean out the ducts at least 2-3 times in the past 5 years), but I didn't realize that it could impact the performance of the HVAC system if it's too high of a grade. The filter an HVAC tech installed when we were trying to figure out why the system wasn't working consistently was almost transparent and clearly did not impede airflow.These filters need to be installed in the right direction (common with any decent filter) and clearly require much more force to push air through them than any super cheap option your HVAC tech might have in their truck. Does having a HEPA-grade filter impact airflow from the vents? Yes. Is it worth it? Yes--assuming your system can handle pushing air through the new bottleneck.Unfortunately, if your HVAC system can't handle moving air through this I think you will be in the market for a new evaporator/internal HVAC component in the near future. I spent hours (in aggregate) researching options for this and coming up with possible fixes that wouldn't require replacing the whole AC unit. We ultimately had to due to the compressor (the part that's outside) failing, but the installers confirmed that the old unit wouldn't have been able to keep up with higher-end filters anyways.TL;DR: Great filters. Only problem is that if your HVAC isn't robust enough to support pushing air through high-grade filters it will prove to you and your family that you need a new system. I still highly recommend these filters but if you're switching from super cheap/no-name filters to this and your system is old... you may be looking at a whole new HVAC setup if it can't handle airflow effectively.
Joshua Rauner
2025-05-23 18:46:27
First package was incorrect, but amazon quickly resolved the issue by sending a second package. Which arrived the next day and was correct... Thanks amazon!
Bobby McPhail
2025-04-19 14:28:05
Used to make a room filter with a 20†box fan!
Maiden Chic 666
2025-04-17 15:53:53
My apartment building recently changed the type of filters they use to save costs. They went from a brand name MERV 11 filter to a no-name MERV 6 filter. I immediately noticed a difference in my air quality and the amount of dust in my apartment. As I have COPD and am on oxygen this was not good. I did some research and found out the vast differences in MERV ratings and decided I need to purchase my own filters for the sake of my lungs. I found these MERV 13 at a great price so ordered them looking forward to breathing better soon. Unfortunately they sent the wrong size! I contacted Customer Service who were very friendly and professionally and immediately shipped out the correct size. I think they put a rush on the shipping as I had the correct filters in just a couple of days. I can tell the difference in the air quality already! I'm am looking forward to dusting so I can see how much less dust accumulates less quickly. These MERV 13 filters trap just about everything - they are the highest rated for residential use. Not even the particles from the summer wildfires are going to get through. Very happy with my purchase (so are my lungs!) and will be buying from this awesome seller again.
Customer
2025-03-04 16:16:37
Had 1 of 4 arrive damaged, but a replacement was dispatched without a fuss.So far 2 are working well in a NorthBox filtration unit, and look forward to getting our second NorthBox running as well.Will update on filter performance once they’ve both had a chance to work away a while.
Customer
2024-12-19 20:31:33
I taped a single Merve13 filter to a 20" fan to build a free standing air filter. I also taped four, 5" X 20" X 20" Merv 13 together with a 20" fan to build a second free standing unit. Both cleaned the air in my 2,400 square foot house after a few minutes - checked it out with an air quality meter.Not much 'cleaning' difference in the two except the 5" one with a much greater filter area will last much longer before it needs to be replaced. I have a 5' filter in my furnace as well and change it every 6 months, but it probably would easily last a year. After 6-months there is only very little residue on the filter.
Jean250
2024-12-07 12:21:42
Fits perfectly in the furnace/ air Conditionning system. Enough filters to last me 2 years and more.
Phil Bernard
2024-11-22 15:05:12
Great value for price. On time and arrived in good condition.
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