The 10 Best Furnace Filters

Sara Mandeed
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With the State of the Air report coming out this year, confirming the fact that more than half of American homes have unhealthy air, it makes perfect sense for you to replace that old dust on your filter. The best furnace filters are compact, inexpensive and can remove at least 90% of common household pollutants.

In this list, you will only find the best car air filters, best air purifiers, best car engine air filters, best home air filters, best home ac air filters, best whole house air filters, best portable air purifiers, best air purifiers for allergies, best allergy air purifiers, best air conditioning maintenance and best cars air filters.

Note: Be sure to compare air filter size and shape to the size and shape of your furnace or air conditioner.

NameCategoryProduct
FilterBuy 20x20x1Best Overall
FilterBuy 20x20x1
Filtrete 20x20x1Budget Pick
Filtrete 20x20x1
FilterBuy 16x25x5 Trion Air Bear Aftermarket Replacement Furnace Filter/Air FilterUpgrade Pick
FilterBuy 16x25x5 Trion Air Bear Aftermarket Replacement Furnace Filter/Air Filter

1. FilterBuy 20x20x1

Our rating: 9 / 10


FilterBuy 20x20x1

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Pros:

  • Affordable
  • Cartridge filters can be cleaned and reused
  • Comes in a 4-pack
  • Designed to improve your indoor air quality
  • Pleated for better functionality
  • Available in different sizes and styles

Cons:

  • Some people have complained that the filters tear easily
  • Cartridge filters might need to be cleaned frequently
  • Not for people with pets as animal hair can get stuck between the pleats

The FilterBuy 20x20x1, Pleated HVAC AC Furnace Air Filter is an affordable furnace filter that comes in a 4-pack. These furnace filters are designed to improve your indoor air quality by preventing pet allergens and household substances from getting into your HVAC system. They're made from pleated material for better functionality. The filters use the electrostatic attraction process to collect particles and then filter them out.

2. AIRx HEALTH 20x25x1 MERV 13 Pleated Air Filter

Our rating: 9 / 10


AIRx HEALTH 20x25x1 MERV 13 Pleated Air Filter

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Pros:

  • Best in class by removing airborne particles
  • Quick and easy to install filters
  • Highly affordable
  • Lifetime warranty

Cons:

  • Not a perfect fit with 20 x 25 x 1 air filters
  • Can be hard to get replacement filters in case of damage
  • No specific reviews for Amazon purchasing

Nowadays, it’s more about how much air you can remove and how good this air filter is at removing the smallest of dust particles. The Airx Health air filters are the best in the market, according to reviews.

When asked about their experience, customers said that the filters do a fantastic job at filtering out particles like pet hair, lint, dust, debris, and more. It’s a quick and convenient way to keep pollutants out of your home. One of the main benefits of these filters is that they are widely available in most major retail stores. In addition, you’re also covered by a lifetime warranty, so you don’t have to worry about replacing the filter.

In terms of downsides, there are few reports that the packaging is heavy duty and thus hard to get into. One specific concern, though, is that they can be hard to find genuine filters if the product gets discontinued.

3. AIRx ALLERGY 16x20x1 MERV 11 Pleated Air Filter

Our rating: 9 / 10


AIRx ALLERGY 16x20x1 MERV 11 Pleated Air Filter

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Pros:

  • Genuine MERV 11 filtration
  • Made with non-woven polyester filter media
  • Fits most standard 16x20x1 HVAC systems
  • Filters air in both the heating and cooling seasons
  • Will not attract insects or trap odors

Cons:

  • Costs more than some other options
  • May require a bit more effort to install
  • Does not fit in some electronic programmable HVAC systems

We recommend getting a new furnace filter installed at least once per season. If you live in an area that is particularly dusty, you should probably change your filter more often. Not only is it more comfortable for you to breathe, but it helps make your furnace more efficient by reducing the amount of dust and debris it has to fight.

In our opinion, one of the best options around at the moment is the Airx Air Filter, which has a huge fan base of satisfied customers. The Airx filter uses a genuine MERV 11 rating of filtration, which is at the top of the range for fine particles. The filter is made in the USA, using non-woven polyester filter media, and doesn’t contain additives to trap odors or attract insects like chemicals or pesticides.

4. X6673 Lennox 20x25x5 Merv 11 Filter Media 2 Pack

Our rating: 9 / 10


X6673 Lennox 20x25x5 Merv 11 Filter Media 2 Pack

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Pros:

  • Merv 11 rating filters tobacco smoke, pet dander, pollen, dust, and mold spores up to reduction 99.97%
  • Filters don’t clog or need frequent cleaning
  • Can be used in Lennox, Carrier, Bryant, Ruud, and others

Cons:

  • Questionable results/results are only a couple of percentage points different from other filters on the market
  • May need to be replaced more frequently than other comparable filters

If you need to address pet allergies and pollen issues, then a Merv 11 filter is what you want. These Lennox filters cover 99.97% of tobacco smoke, pet dander, pollen, dust, and mold spores in the air. Plus, they only need to be changed once a year. No more frequent cleanings.

Lennox offers a 10-year warranty on the filters, so you needn't worry about whether or not they'll perform consistently for a long time.

5. Nordic Pure 20x25x5 MERV 12 Pleated Honeywell Replacement AC Furnace Air Filters 2 Pack

Our rating: 8 / 10


Nordic Pure 20x25x5 MERV 12 Pleated Honeywell Replacement AC Furnace Air Filters 2 Pack

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Pros:

  • Extra large
  • Airtight
  • Provides a healthy environment
  • Has a low price point
  • Easy to replace with pre-filter clips
  • Made in the USA
  • Dust free
  • Fits the largest household furnaces

Cons:

  • Only comes in one color
  • Some air flow disruption

If you want the best furnace filters with the best air filtration the Nordic Pure is a great choice. No one with a respiratory condition or allergy should have poor indoor air quality, and a good filter can help lessen these problems. With this in mind we want to point you in the direction of this filtered.

The Nordic Pure filters come in a pack of eight and are designed to fit 90 percent of all furnaces on the market. They are made from a superior activated carbon technology with a honeycomb pleated design.

These filters have a MERV 12 rating and will remove up to 98 percent of airborne pollutants such as pollen, bacteria, dust, and mold spores. The filters are made with a combination of virgin and sustainable materials, and are very environmentally friendly. The filters are made in the USA and will last as long as a year if cleaned once a month.

6. Honeywell FC100A1037 Ultra Efficiency Air Cleaning Filter

Our rating: 8 / 10


Honeywell FC100A1037 Ultra Efficiency Air Cleaning Filter

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Pros:

  • Excellent value
  • Effectively filters out airborne particles
  • Two-year limited warranty
  • Filter comes with a pre-filter mesh
  • Pleat design
  • Available in various size options
  • Does not require a special ordering process

The Honeywell FC100A1037 is the best furnace filter for people who are looking for an affordable one. This high-efficiency air filter offers several benefits including an enhanced pre-filter and pleat design.

7. Filtrete 20x20x1

Our rating: 8 / 10


Filtrete 20x20x1

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Pros:

  • Fits almost all standard furnace filters
  • Longer lasting than other filters
  • 1,000-hour average life
  • Less dusty

Cons:

  • Slightly more expensive than competitors
  • Doesn’t fit exactly

Here at NewAir, the six-pack of NewAir AF-300 Remarkable Air Filter is our top pick. This model is evenly priced with filters from competitors, so you know that you’re getting a high-quality product for your money. The Filtrete filter lasts for a remarkable 1,000 hours, and per the manufacturer, it captures at least 95% of dust and other airborne particles in your home. And with a little help from the Energy Star feature, this filter comes with advanced filtration that helps keep your operating costs more manageable, too.

8. Trophy Air 16x20x1 HVAC Furnace Air Filter Lasts a Lifetime

Our rating: 8 / 10


Trophy Air 16x20x1 HVAC Furnace Air Filter Lasts a Lifetime

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Pros:

  • Works for both large and small room settings
  • Installs effortlessly
  • No need to buy replacement filters
  • Long-lasting 16x20x1 air filter
  • Highly portable
  • Cheap and cost effective

This product from Trophy is one of the best air filters you can find on the market today. It’s a washable air filter that works for both large and small room settings. You can clean this filter as many times as possible, and it’s proven to last a lifetime. It’s highly portable and lightweight, and can blend well with any setting in your home or office.

The Trophy Air 16x20x1 premium air filter also works as a chemical and allergen defense filter for almost any type of air conditioner you can find nowadays. It’s also ideal for allergy sufferers, as it’s proven to catch almost any type of allergen you can think of.

The Trophy Air filter is made of a highly durable polyester mesh, offering excellent durability and airflow efficiency.

9. FilterBuy 16x25x5 Trion Air Bear Aftermarket Replacement Furnace Filter/Air Filter

Our rating: 8 / 10


FilterBuy 16x25x5 Trion Air Bear Aftermarket Replacement Furnace Filter/Air Filter

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Pros:

  • Easy to install – no tools required
  • Very easy to clean
  • Does the job very well – reduces odors and improves air quality
  • Fits very well in most furnaces

The FilterBuy furnace filter is a great option if you’re looking for the best furnace filters. It eliminates odors and particles from the air while increasing ventilation in your home. It’s made with activated carbon, so it’s a great option for removing odors from the air.

The FilterBuy furnace filter is rectangular and fits nicely in most furnaces that have 16x25x5-inch filters. This model has a MERV rating of 8, which means it is highly efficient at reducing air contaminates and improving air quality. According to reviews, the FilterBuy model does not give off an odor when new or during operation.

There have been reported cases of a slight burning smell when the filter first arrives, but the smell dissipates after several days of usage. The carbon filters are designed to last up to three years for regular usage, but it’s a good idea to replace them on a yearly basis.

10. Filtrete 16x25x4 Nominal Size 15.88×24.56×4.31

Our rating: 7 / 10


Filtrete 16x25x4 Nominal Size 15.88x24.56x4.31

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Pros:

  • Environmentally friendly
  • Sturdy
  • Reasonable price
  • Easy to install
  • Long-lasting and reduces dust and allergens

Cons:

  • Can be a bit of a hassle to clean
  • Material quality leaves a bit to be desired

This is the go-to premium high-efficiency Furnace Filter when it comes to keeping dust, allergens, and pollutants out of your home. This all-around quality product by Filtrete is one of the most environmentally friendly filters on our list. After all, each filter is made of recycled content and is thoughtfully packaged with boxed inserts to keep it upright and clean.

This filter is made from a specially-designed material that stops even the tiniest of particles from going through. That also means that you can use it for an extended period of time before you have to change it. It’s also just as easy to install as it is to use and maintain. The only drawback of this particular filter is that it can be a bit of a hassle to clean if you want to make sure it’s doing its job properly.

Frequently Asked Questions (FAQ)

What are the best rated furnace filters?

Cleaning or replacing furnace filters is extremely simple, but it can save you a lot of money and frustration in the end. These filters are specifically designed to filter out any particles of dirt, dust and other airborne materials indoors.

Furnace filters are a common feature in most homes today. They are also a very necessary one too.

Dust and dirt can make their way into your home from a number of different sources like your neighbors zucchini plant, construction vehicles, even the outside air. If you do not do anything to keep these pollutants out of your house, they will sit there quietly destroying everything in their path.

To ensure that your furnace filters remain effective, they should be replaced every 3 to 6 months. If you do not have all the time to do that yourself, you can always call a heating and cooling service provider to do it for you. This is a much better approach in terms of both cost and time.

What is the best furnace filter for viruses?

The best furnace filter for viruses should have a very high MERV rating. The higher the MERV rating, the more effective the furnace filter will be against viruses. The high-end Lennox brand furnaces are among those that offer very high MERV ratings – up to 21 (the higher the rating, the better the filtration) – which is ideal for those that are among the 10% of people who are considered extra-sensitive.

What is the best MERV rating for furnace filters?

A higher MERV rating indicates better filtration, and, almost invariably, lower air flow.

So, higher is better on both counts, right?

Well, maybe.

It depends on what you need the furnace filter to do.

A lower MERV filter will have fewer pleats.

These pleats reduce the surface area of the filter, so, a lower MERV will have less filtration capability, but it will be a higher-flow filter.

A higher MERV filter will have more pleats.

These pleats add surface area to the filter, so, a higher MERV will have better filtration, but it will be a lower-flow filter.

So, what is the right MERV rating for you?

There is no straightforward answer because it depends on what you need.

What are the 10 best furnaces?

On this list you will find the best furnaces currently available. This isn’t just just our favorite list. We have taken the time to do an extensive review process. We anonymously purchased and tested each furnace. Then we selected the ten best furnaces on the market.

We know that a homeowner wants to know the best of the best, not the mediocre. The great part is that you are going to find the best here.

We looked at many of the factors that can differentiate a furnace from its competitors. There are many furnace manufacturers, but NONE of them made our best ten furnaces list. The following furnaces are the best of the best.

The best furnace filters will include:

  • Value pricing
  • Excellent filtration capability
  • Durable materials
  • Efficient and silent operations
  • Good warranties, and
  • Superb customer service

Conclusion

Today we are looking at a number of the most popular furnace filters from a trusted manufacturer. We believe that this filter should be able to provide a lot of value for those looking for a high quality, durable filter. We also believe that this type of filter should be able to have the least amount of maintenance when compared to other types of filters that we reviewed.

Our Recommendation

NameCategoryProduct
FilterBuy 20x20x1Best Overall
FilterBuy 20x20x1
Filtrete 20x20x1Budget Pick
Filtrete 20x20x1
FilterBuy 16x25x5 Trion Air Bear Aftermarket Replacement Furnace Filter/Air FilterUpgrade Pick
FilterBuy 16x25x5 Trion Air Bear Aftermarket Replacement Furnace Filter/Air Filter