2021 10 Best Furnace Filters 16x20x1 Inches in Size Worth Every Penny

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Furnace filters come in various sizes to fit different furnaces including 16x20x1, 20x20x1, 20x25x1 inches and so many others. Even though they may not seem like the most important items or the most interesting when shopping, they play an essential role and are thoroughly recommended for use in most furnace types.

The aim of such filters is to protect the furnace itself. This means shielding it from anything such as dust, hair, and all the other gunk that a return duct tends to pull in.

Though such filters aren’t predominantly designed for cleaning the air as such, what they do is to help the quality of the air in your home as they actively work to remove those pollutants present. Therefore you are less likely to suffer from such contaminated air being redistributed and recirculated around you.

Some people believe that furnace filters aren’t essential and therefore forgo them. However, while they essentially do a good job and greatly reduce any associated costs with running a furnace, the increased costs and long term effects of not using one can be problematic.

Without a filter in place, you will not only be prone to contaminants and therefore upset many allergy sufferers in the home, but ultimately you run the risk of getting debris stuck and lodged into your blower. This inevitably will lead to an accumulation of buildup, wear and tear and more than likely a breakdown – costing you much more to replace the entire filter than it would do to insert a simple filter!

Here we look at a good selection of high quality furnace filters all sized at 16x20x1. These are some of the best rated and popular products currently retailing online and therefore can all be purchased swiftly, thus ensuring your furnace works to its full capacity and best performance for many more years to come.


When looking for any filter type to fit your furnace, we recommend you keep an eye out for those displaying the MERV rating.

Otherwise known as the Minimum Efficiency Reporting Value, MERV refers to the overall effectiveness of the air filter.

Thus, those filters displaying a higher MERV rating will be able to offer a finer filtration process. This means that fewer articles of dust and other airborne contaminants can pass through these filter types.

As a guide, we recommend a MERV rating of between eight and 11, when it comes to purchasing a filter for the furnace. But, we also recommend double-checking with your manufacturer for the MERV rating on your model before purchasing these products. This is because some may suggest a maximum MERV rating for safety reasons.

Best Furnace Filters Brands

  1. Filtrete Furnace Filters The very popular Filtrete offer a wide selection of furnace filters. Though all four reviewed here that are sized at 16x20x1, each specific filter reviewed on this list offers a slight variant. These include a micro allergen filter, a clean living basic dust filter, a healthy living ultimate allergen filter, and a fantastic premium smart air filter. The MERV ratings of each of these filters also differ. Customers Filtrete filter products for furnaces claim these do a fantastic job at alleviating the home environment for those allergen sufferers, with many suggesting how they notice a real difference when using these specific filter types in their furnace.
  2. FilterBuy Furnace Filters – A family-owned company, FilterBuy have been in business supplying quality air solutions since 1958. It’s no wonder their filters come highly recommended by a majority of online customers. They find them to be fantastic products which work to outdo even those more expensive of counterparts! With many satisfied customers thoroughly happy with the result when using these filters, they are considered an ideal buy.
  3. Nordic Furnace Filters – Nordic Pure is also a popular brand that sells 16x20x1 air filters and several other sizes for the furnace. Though both filters reviewed on this list are pleated filter types, both products differ in their MERV rating. When it comes to customer feedback, customers of the Nordic Filter range highly commend these filter types, claiming they really do work for those allergy sufferers, alleviating, any problematic symptoms through the thoroughly improved airflow.
  4. Aerostar Furnace Filters – Aerostar filters are manufactured in the USA by a Filtration group and are one of the leading manufacturers and suppliers of residential filtration solutions. Customers of the Aerostar filters highly rate these products not just for their reduced low cost, but for their ability to really work and do a great job of capturing a great deal of muck that otherwise would have ended up in the living environment.
  5. Airx furnace filters – Customers of the Airx filters claim these to be straightforward hassle-free filters which are easy to fit but work superbly well in action. Their low price is also highly rated by many.

Best Furnace Filters 16x20x1 Inches in Size

1. FilterBuy AFB MERV 8 16x20x1 Pleated AC Furnace Air Filter

Here FilterBuy sell a pack of four filters sized 16x20x1 which are silver and pleated in design. FilterBuy AFB MERV 8 16x20x1 Pleated AC Furnace Air Filter,

With a MERV rating of 8, these American made products are claimed to capture an astounding 90% of airborne particles lingering around the home environment. This means they greatly reduce the presence of pet dander, debris, dust, pollen, and lint.

The result of applying these filters to your furnace is a better all-round indoor air quality.

One of the more long-lasting of designs, these are ideal for both residential and commercial use and can last for as long as three months. Better still, the higher quality which has gone into the design and manufacture of these filters ensures a more durable item which can hold against humidity and high temperatures, even up to 200 degrees Fahrenheit.

Utilizing a synthetic media in their makeup, this works to actively increase the particle efficiency, as opposed to those filters made up of the standard cotton media.

2. FilterBuy 16x20x1 MERV 11 Pleated AC Furnace Air Filter

Another FilterBuy product, this time these are the gold filters. With a MERV rating of 11. They are also the stronger filter types that can handle an increased element of problematic air pollutants. FilterBuy 16x20x1 MERV 11 Pleated AC Furnace Air Filter, (Pack of 4 Filters), 16x20x1 - Gold

Sold in a pack of four, these products are also pleated, ensuring even more effectiveness at doing the job of improving air quality.

Utilizing a synthetic media which is designed exclusively for allergen protection, these filters actively work to attract things such as pet dander, debris, dust mite, smoke, smog, and mold spores.

Longer lasting than standard filters, they work perfectly in homes and even those commercial places, including industrial-grade – such is their greater overall strength.

American made, and from a company that prides itself on decades of creating quality air solutions, these filters hold up well against humidity and high temperatures while remaining durable throughout use.

With the ability to elevate your furnaces overall performance, the FilterBuy filters also help minimize system backpressure while maintaining the correct airflow at all times. This is made simple by their addition of no less than 12 pleats per foot and beverage board frames which give wider surface area.

Customers of the Gold FilterBuy MERV 11 filters claim that the Gold element of these products ensures a better all-round filtration process and one that offers continuous high performance. The lower price tag attached also puts a smile on many customer faces.

3. Filtrete 16x20x1, AC Furnace Air Filter, MPR 1000, Micro Allergen

The first filter here is designed exclusively as a Micro Allergen filter. Sold in a pack of two these are 1000 MPR filters which claim to outperform other types of filters. That includes those washable filters, fiberglass filters, and non-electrostatic filters. 16x20x1, AC Furnace Air Filter,

Claimed to last on average around three months, these air filter types work to remove all unwanted air particles from your home environment. Therefore they actively make the cleaner air flow through with ease.

Utilizing an electrostatic Filtrete brand and three in one type of technology, their performance rated as outstanding and equates to a MERV rating of 11.

Suggested for residential use only, these filter types can be used to combat against pet dander, dust, pollen, smoke, and soot. With just a four-step installation process, they are easy to fit the first time and take just seconds to replace.

4. Filtrete 16x20x1, AC Furnace Air Filter, MPR 300, Clean Living Basic Dust

The second Filtrete choice is the Clean Living Basic Dust filter. Filtrete 16x20x1, AC Furnace Air Filter, MPR 300, Clean Living Basic Dust, 6-Pack

Sold in a practical pack of no less than six filters, this offers an MPR of 300. Once again, these filters are also claimed to outperform other types of filters on the market and are more active due to their pleated design.

The Clean Living Basic Dust filters also make use of the company’s three in one exclusive filter technology and reduces unwanted particles allowing just the cleaner air to come through.

With a MERV equivalent of five, these are best suited for reduced residential use and ideal for certain rooms in the home.

Working on eliminating problematic issues, they effectively combat smoke, bacteria, viruses, pet dander, and pollen. Therefore they are an ideal choice for all allergy sufferers and great for homes where children are present.

Once again, relying on the simple four-step installation process, they require minimal effort when it comes to replacement time.

5. Filtrete 16x20x1, AC Furnace Air Filter, MPR 1900, Healthy Living Ultimate Allergen

The third Filtrete filters on the list for review here are the Healthy Living Ultimate Allergen Filters. These are sold in a pack of two and are fairly priced. Best furnace filters 16x20x1

Once again, these filter types though a variant to the other Filtrete filter types, actively work to outperform other filter types on the market. This includes the usual washable, non-electrostatic, and fiberglass models.

Considered the better choice of air filters for your home furnace, they are more suited to residential dwellings but are still powerful performers. Including a pleated design, they also boast a slimline design of just one inch.

The Healthy Living Filters are also designed utilizing Filtrete’s wonderful branded three in one technology. So, they work as hard as they can to trap those unwanted air particles and strive to ensure only clean air makes its way into your living environment.

This means these filters actively attract and capture microscopic particles. Examples here include smoke, cough and sneeze debris, viruses, and bacteria. They are also effective when it comes to larger particles, which include that of pollen, lint, and household dust.

Yet, one of the most staggering features of these particular filters is their MERV rating. This sits at no less than 13!

6. Filtrete 16x20x1 Smart Air Filter, MPR 2200, Premium Allergen & Home Pollutants AC Furnace Air Filter

The fourth and final Filtrete model here on the list for review is the Premium Allergen and Home Pollutants Furnace Air Filter. Filtrete 16x20x1 Smart Air Filter,

With an MPR of 2200 equivalent to MERV rating of 13, this is available in a pack of two and benefits greatly from a smart air filter design throughout. This means these filters will actively work to detect any changes in your homes air pressure. When change is spotted, they automatically revert to an impressive algorithm. This ensures that the filter life can be optimized by working based on your homes airflow systems and equally, the correct particles are captured to ensure greater efficiency!

Recommended for residential use, the inclusion of the smart element takes your filter usage to the next level! This is because smart air filters utilize a sensor. This ensures that airflow and usage are continually monitored and when the time is necessary for a change – you are informed. Therefore, there’s no more guessing and you save more money long term.

In addition to this, you can immediately access the Smart App from Filtrete with these filter types and access a whole display of air quality information for your desired area. Thus, you can then monitor your indoor air quality more closely, regardless of where you are.

What’s more, the app will offer several notifications regularly, which all work to keep you updated about your filters life and progress, while providing necessary tips on how to improve the air quality in your home.

The many benefits of using a smart filter include the ability to capture those finer of particles that could otherwise be missed by standard filter types. These include particles such as bacteria, virus carriers, mold spores, and pollen. This means not only are they great for the home environment in general but ultimately the best solution for any homes with children and of course allergy sufferers.

7. Nordic Pure 16x20x1 MERV 12 Pleated AC Furnace Air Filters

The first Nordic Pure filter is a MERV 12 rating filter. Fantastically priced, here you’ll find your filters in a pack of six. Best furnace filters 16x20x1

Claimed to offer the more superior of air filter types they are ideally aimed at residential and even commercial properties.

With a MERV rating of 12, these work harder to improve the homes airflow quality and offer an MPR rating of 1500-1913.

With filter material that is pleated and electrostatic, these filters are also hyperallergic and antimicrobial, making them ideal for all homes and especially those where children or allergy sufferers reside.

Made entirely in the USA, Nordic Pure is a company which prides itself on offering only the best quality, and a wide variety of pleated air filters and these 12 MERV rated products are no exception here.

Filtering pet dander, Nordic Pure Air realize the hassle of having pets in the home when it comes to keeping the air quality clean. Known as one of the quickest triggers of allergies, their filters work to actively remove pet dander, including that not just of dogs but also cats, birds, and small furry pets such as hamsters and rabbits.

Best of all, the Nordic Pure filter range ensures that all filter purchases are made from recycled frames. This means they are constructed using recycled beverage board paper. Therefore they are much more environmentally friendly than many other filter types on the market.

8. Nordic Pure 16x20x1 MERV 8 Pleated AC Furnace Air Filters

These Nordic Pure furnace filters are also 16x20x1 in size but offer a MERV rating of 8.  Nordic Pure 16x20x1 MERV 8 Pleated AC Furnace Air Filters

Once again, pleated in design to ensure continued and better performance all-round, these filters benefit greatly from their unique construction and design. Boasting an electrostatic filter, they can cope better when it comes to capturing many more types of larger airborne particles. This includes such things as household dust, pollen, and mold spores – all of which can become problematic when left to build up over time.

Claimed to outperform those standard of air filters, they also work to outdo rival filter types such as fiberglass, disposable filters, and even those washable filter types.

Because of the use of hypoallergenic and antimicrobial pleated filter material employed throughout these designs, theses filters are more active at removing allergens. But, they do so while effectively cleaning the air but at just a low enough rate to ease any strain placed on the furnace itself.

Once again, using a recycled frame, by selecting the Nordic Pure filters you actively play your part in helping the environment in terms of recycling efforts and indeed via a reduced use of energy waste through this fantastic design!

9. Aerostar 16x20x1 MERV 8 Pleated Air Filter

Aerostar sells a pack of eight pleated air filters which you can select in either 8, 11 or 13 MERV rating. Aerostar 16x20x1 MERV 8 Pleated Air Filter, Made in the USA, 6-Pack

Made for efficiency, they have been designed to offer a more superior infiltration. Constructed using charged electrostatic synthetic in its material, these filters work to both draw in then capture those allergens present.

This works effectively on allergens that are between three to ten microns – meaning such things as lint, mold spore, dust, pet dander, and pollen. The idea is to protect those members of the household by improving the air quality around the home.

A most simple and cost-effective step, the company believe these filters greatly improve the home environment and thus prevent the triggers for any possible allergy sufferers.

Aerostar believes that by using these filters in your furnace, you ensure it can work more efficiently by not just removing any dirt present but ultimately reducing any stress on the motor. This is because when your unit runs correctly, the energy consumed is reduced dramatically.

Thus, by inserting an Aerostar filter into your furnace, you ensure a furnace which requires less maintenance and therefore will last you longer.

10. Airx Allergy 16x20x1 MERV 11 Pleated Air Filter

Airx Filters sell a 16x20x1 box of six pleated air filters, and several other sized filters, all which offer a MERV 11 rating. AIRx ALLERGY 16x20x1 MERV 11 Pleated Air Filter - Made in the USA - Box of 6

A premium filter type, the concept of these filters is to offer more pleats in their design as opposed to other types of retail filters. Therefore, this leads to a more efficient and energy-saving filter type, which works harder to capture even more of those problematic particles.

The aim of an Airx filter is to turn your furnace into a whole-house air cleaner! This ensures that those problematic issues most households deal with daily are reduced greatly. Thus you should see less evidence of mold, smoke particles, pet dander, pollen, dust, and other types of debris.

These specific filters are claimed to work like a micro-particle magnet. Therefore they actively trap and then lock any allergy-related particle types, working hard to protect your entire home from air contaminants.

Furthermore, the company believes that by using their filters in your furnace, you assure it can work to its optimal efficiency, increasing a better airflow all-round. Also, these encourage reduced energy usage – therefore lower bills and ultimately reduced maintenance costs!

Claimed to greatly outperform those other filter types including fiberglass types, reusable types and even those washable ones, the design of a pleated filter means more pleats per square inch. This ensures a higher efficient filter media all-round.

Final thoughts on Best Furnace Filters 16x20x1 In Size

To ensure the improved air quality, and that these filters do their very best job, experts recommend replacing them as and when is necessary.

Look to the maker of your filters for when you should need to replace them. But, as a general guide, for best performance, we recommend changing them every month to three months – if you have no other manufacturer literature suggesting otherwise.

It’s also worth bearing in mind that there are some months, such as during summer and winter, when your furnace will be working at its peak. Therefore, you may find you have to increase the frequency of your filter changes to accommodate such times.

It’s worth noting that even though this article is on 16x20x1 inch furnace filters, each of these also has several other size variations for you to choose from.

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