Best Furnace Filters in 2022

With a high-quality furnace filter, protecting your furnace is a simple and easy task. Selecting a suitable option can help to improve your indoor air quality through the removal of airborne contaminants. To maintain the quality of your heating and air-conditioning systems, a furnace filter is a functional and useful solution.

Deciding on the type of furnace filter can be a daunting task since there are several types to choose from that are all made from different materials. In this article, we will analyze the effectiveness and suitability of some of the most top-rated furnace filters available in the market.

The ability of such products to improve indoor air quality is also a significant element to consider, thus we’ve made sure to include this factor in our analysis.

Why Might a Furnace Filter Be Advantageous for You?

To grasp why a good-quality furnace filter would be advantageous for you and your household, first, we need to understand why it is used in the first place and how furnaces work in general.


A furnace keeps your home warm through a continuous heating cycle. The blower transfers heated air through ducts and the warm air is circulated all over the house. Colder air will then be drawn into the furnace and this cycle starts again.


Since the indoor air is continuously recycled, there is a high chance that it could absorb contaminants or allergens throughout the cycles. As a result, the furnace will circulate the tainted air all over your home.


To prevent the circulation of airborne contaminants, a furnace filter would be very useful. It prevents contaminants such as dirt from going into your furnace and being redistributed. As a result, your furnace is likely to last longer and your indoor air quality is likely to improve.


How To Choose The Most Suitable Furnace Filter

There are frequently used technical terms associated with furnace filters. Part of the reason why choosing between products can be difficult is because of the introduction of unfamiliar features and words that you need to learn.

Those who are aiming to purchase furnace filters will come across some of the following acronyms: FPR, MPR, and lastly MERV. Let’s take a look at what they all mean.


Microparticle Performance Rating (MPR)


The MPR is a measure of how capable the furnace filter is at trapping contaminants and other tiny particles that are less than 1 micron (μm) in size. A suitable MRP range is between 1,500μm to around 1,900μm. Only certain products use this measurement, specifically those that come under the 3M brand.

Minimum Efficiency Reporting Value (MERV)


MERV is a well-established measurement that assesses the performance and efficiency of furnace filters. It was first developed by the ASHRAE and has since been used to check factors such as how well furnace filters trap particles of varying sizes.


The higher the MERV rating, the better the quality of the furnace filter. For example, a MERV rating between 13 to 16 means that the product can trap particles that are 1 to 0.3 μm in sizes such as insecticide dust and bacteria. However, a MERV rating between 1 to 4 can only trap particles that are greater than 10 μm in size (e.g., dust mites).


Since this measurement was developed by the ASHRAE, all furnace filters purchased within the USA will have a rating. In general, a MERV rating between 8 to 11 is already considered to be highly effective. In comparison to air filtration systems, a typical air filter has a rating of around 6 to 13.


For those of you who feel that their indoor air quality is more contaminated due to the presence of construction works or even pets, you may wish to consider furnace filters with higher MERV ratings. It will ensure brilliant performance from your furnace filter and can assure you that it is capable of trapping very small particles to improve your air quality.


Filter Performance Rating (FPR)


The FPR is a measurement that was created by Home Depot. It measures the effectiveness of furnace filters and is somewhat comparable to the MERF rating. Furnace filters with an FPR rating between 1 to 4 are considered to have good performance, whereas Furnace filters with an FPR rating of 10 are considered to have premium-level performance.


How to Choose the Most Suitable Furnace Filter


When it comes to choosing the most effective and highest-quality furnace filter for your household, there are plenty of important factors to consider.


To protect your furnace and thus extend its lifetime, there are plenty of elements that are worth acknowledging. Certain filters are much better at improving the indoor air quality in your home.

In this article, we’ve developed a detailed list of important factors that you need to consider before making any purchase.


Type of Furnace Filter


There are various types of furnace filters available in the markets. Furnace filters can be made from a variety of different materials such as electrostatic filters that use electrostatically charged particles to draw in contaminants.


There are also polyester filters and fiberglass filters, the latter trapping bigger-sized contaminants and the former being capable of trapping smaller contaminants. Polyester filters tend to be more expensive, however, they are also of higher quality.


Other filters include pleated filters that are incredibly efficient and capable of trapping very small contaminants such as bacteria. There’s also the option of buying washable or disposable filters.


When it comes to deciding which filter is most suitable for you and your household, it’s important to account for whether there are pets present, whether your household has smokers, and whether you live in an area where there is frequent construction.


It’s also important to account for if a member of your household is, unfortunately, suffering from allergies. It would be prudent to choose a higher quality filter, in this case, to help ensure good indoor air quality.


For many individuals, a major factor in whether they make a purchase or not is the effectiveness of the furnace filter in filtering small, airborne contaminants without reducing the airflow of their system.


Note that it is important that you choose a furnace filter that has been approved for residential use to make sure that it is safe for your household.



Furnaces often come in various sizes. As such, your chosen furnace filter needs to be the correct size. If you purchase a filter that does not fit your furnace completely, this could result in a major reduction in its efficiency.


The size of a furnace filter is often displayed on the packaging, however, if you require more information, it would be best to measure it directly.



Furnace filters come in a variety of different thickness levels. The thickness can have a large influence on the ability of the filter to remove airborne contaminants. Commonly, furnace filters tend to be either 1 or 4 inches.

Make sure to be careful with your purchase as if you choose wrongly, the filter might not fit into your furnace.


Top-Rated Furnace Filters


When it comes to choosing the best quality furnace filter that suits your requirements, it is important to have a good understanding of furnace filters that are of great quality.


Our team has collected, analyzed, and verified reviews and gathered valuable opinions from professionals to give you a list of the best products. Below is a detailed list of the top-rated furnace filters in the market:


AIRx Health Pleated Air Filter


With the AIRx Health Pleated Air Filter, you receive a well-regarded product with a Minimum Efficiency Reporting Value of 13. As such, it is effective at trapping very small airborne contaminants including viruses, insecticide dust, and bacteria.


AIRx has ensured that this air filter was designed to be highly efficient at its energy use whilst also performing brilliantly even in areas with low indoor air quality and the presence of contaminants from building construction.


Due to the high pleat count, the AIRx Health Pleated Air Filter allows for enhanced airflow. Lastly, the electrostatic filter means that the product is more efficient at capturing harmful contaminants.



The higher number of pleats indicates potentially increased airflow. There are also health filters to remove small contaminants such as dirt and dust from the air.

Furthermore, with the existence of electrostatic filters, electrostatically charged particles are used to trap airborne contaminants at a better rate. This helps to truly keep your indoor air clean, fresh, and comfortable for all the members of your household.



The AIRx Health Pleated Air Filter can be quite loud, therefore it may not be very convenient if your furnace is located close to quiet spaces. There have also been reviews from verified customers where the advertised dimensions may not be accurate to the actual filter dimensions.


Multiple size options: Yes

Pleated: Yes

MERV Rating: 13

Number of units in each pack: 6

Durability: 90 days


Air-Care Electrostatic Washable Permanent A/C Furnace Air Filter


The Air-Care Electrostatic Washable Permanent A/C Furnace Air Filter is a brilliant option for those who are more environmentally minded. This is because it is washable, thus making it reusable. With this filter, there will be little need to continue replacing it, thus helping both the environment and your wallet.


When the filter becomes dirty enough that it requires cleaning, it is a simple process to remove the filter, wash it, ensure that it is completely dried, and then place it back into the filter. Rewashing it also means that in the long-term it becomes less expensive in comparison to its alternatives.


The Air-Care Electrostatic Washable Permanent A/C Furnace Air Filter should be washed around once a month. This will ensure that it is clean and thus give it the capacity to continue working efficiently.


This furnace filter is capable of trapping 88% of airborne contaminants. It has a total of 5 different layers of filters and it also includes an electrostatic filter. The electrostatic filter easily traps harmful airborne contaminants such as bacteria and mold spores.

This furnace filter is convenient, long-lasting, effective, and entirely worth the great reviews that it garners from satisfied customers.



The Air-Care Electrostatic Washable Permanent A/C Furnace Air Filter contains 5 filter layers, meaning that your filter is heavily protected. The electrostatic filter also ensures that your filter is protected against harmful contaminants. This has a brilliant effect on your air quality so everyone in your household gets access to clean air.


Furthermore, it is reusable and traps 88% of airborne contaminants for your peace of mind.



Although it is washable, if you wash it wrongly, it may cause damage to the filter. Furthermore, this furnace filter may not be suitable for all filters. You should check beforehand if it suits your particular filter.



Multiple size options: Yes

Pleated: No

MERV Rating: 6

Number of units in each pack: 1

Durability: 30 days


Filtrete AC Furnace Air Filter, MPR 300, Clean Living Basic Dust


The Filtrete AC Furnace Air Filter, MPR 300, Clean Living Basic Dust has been developed by Filtrete to be inexpensive yet of premium quality and efficiency. In order to effectively protect your household from allergens such as dust, this furnace filter is the right option.


Filtrete has continuously developed high-quality products and has become well-renowned. It is well-established in various industries including heating, cooling, and ventilation. With their reputation for quality, it is safe to say that the Filtrete AC Furnace Air Filter, MPR 300, Clean Living Basic Dust will be highly effective.


This filter will ensure that your furnace is protected and is running efficiently. Due to its quality, you can be assured that your indoor air quality is clean and comfortable.


This furnace filter has a Microparticle Performance Rating (MPR) of 300 which gives your furnace the necessary protection to prevent major blockages because of debris. This helps to boost the longevity of your furnace, saving you the cost of fixing.


With electrostatically charged particles, you can also ensure that your furnace and your home are protected from harmful airborne contaminants that may aggravate allergies.

The Filtrete AC Furnace Air Filter, MPR 300, Clean Living Basic Dust is compatible with high-velocity equipment. This indicates that your furnace can run efficiently with this filter. It is highly capable of filtering harmful particles without needing to compromise the airflow of the furnace.


The Filtrete AC Furnace Air Filter, MPR 300, Clean Living Basic Dust is a high-efficiency furnace filter that comes at a very inexpensive price. For the benefits that it provides in filtering contaminants, the price is more than suitable for those on a tight budget.



Unfortunately, it has a relatively low Microparticle Performance Rating. This makes it less effective at handling very small particles when compared to other high-performance furnace filters. It is also licensed for residential use only, meaning that it cannot be used in other indoor air spaces such as offices, studios, and others.


Multiple size options: Yes

Pleated: Yes

MERV Rating: 5

Number of units in each pack: 6

Durability: 90 days


Honeywell Air Cleaning Filter


With the Honeywell Air Cleaning Filter, you receive a high-quality product from a well-established company. Honeywell was founded more than 100 years ago in 1906. Throughout their history, they’ve perfected and refined their craft such that their products are very well-renowned and of superior quality.


With the high Minimum Efficiency Reporting Value (MERV) rating of 11, it is not only brilliant at filtering large debris, but it is also excellent at handling very small and potentially harmful airborne microparticles. In total, it can successfully filter 90% of contaminants that enter the furnace.


Furthermore, through their use of premium-level polypropylene, Honeywell can ensure that their filter for this product is much more efficient in comparison to its fiberglass alternatives. With an advanced static pressure drop system built directly into the product, you can be confident that the airflow has been optimized and is unrestricted by the filter.


Lastly, it may be worth noting that depending on your purchase, it can come as either a one-pack or a two-pack.



The Honeywell Air Cleaning Filter has a high Minimum Efficiency Reporting Value. This indicates that the overall performance and efficiency of this furnace filter are of very high standards.


The product is of great quality both in terms of its hardware and use. Due to the high MERV rating, it has excellent filtration that easily beats many of its competitors on the market.


In environments where there is an abnormally large amount of dust, its longevity can be negatively affected.



Multiple size options: No

Pleated: Yes

MERV Rating: 11

Number of units in each pack: 1 / 2

Durability: 90 days


Nordic Pure 4


With the Nordic Pure 4 filter, buyers can get access to a product with a Microparticle Performance Rating of between 1,500 to 1,900 and a Minimum Efficiency Reporting Value of 12. These high ratings indicate that the product is incredible in its capacity to filter out both large and small contaminated microparticles.


To fully protect your furnace and maintain its longevity, this filter is a wonderful choice. It is equipped with an excellent electrostatic filter that completely traps harmful airborne particles. It is highly effective at ensuring that contaminants and allergens such as pollen and dust are filtered out from the air.

The Nordic Pure 4 filter has been developed using premium hypoallergenic and antimicrobial material. In layman’s terms, hypoallergenic means that it is less likely to cause allergic reactions, and antimicrobial means it works actively against harmful microorganisms. In terms of its effects, this means that the filter works brilliantly against bacteria, germs, and viruses.


For households with one or more pets, this filter would also be a very suitable choice. It effectively removes pet fur from the air and would be particularly useful if you have pets that shed their coats often.

Furthermore, since the filter frames have been developed using recycled materials, it is also a suitable choice for those who are environmentally conscious.


With the Nordic Pure 4 filter, you won’t have to be concerned with having to change the filter too frequently. Being able to deal with particles such as those from pets means that it has a lengthier lifespan in comparison to many alternatives.


Furthermore, as previously mentioned, this filter is pet-conscious and pet-friendly. It is also very durable, thus increasing its lifespan once again.



A disadvantage of this filter is that although it has a great filtration ability, it can also restrict airflow, making it less effective.



Multiple size options: Yes

Pleated: Yes

MERV Rating: 12

Number of units in each pack: 6

Durability: 30–90 days


FilterBuy Silver Furnace Filter


The FilterBuy Silver Furnace Filter is an inexpensive option that is highly capable of filtering dust, bacteria, and other airborne contaminants. This product is perfect for those who suffer from allergy symptoms, whether seasonal or otherwise.


For those who want to securely protect their furnaces from the build-up of debris, this filter has a Minimum Efficiency Reporting Value of 8. It can surely filter out mold and pollen as well.

The frames of these filters are developed using a special type of material. They are made from beverage boards, meaning that even in very high temperatures of 200°F (93.3°C), they can still function efficiently. As such, this product is highly suitable for areas with higher humidity levels.


The FilterBuy Silver Furnace Filter is capable of filtering 90% of all harmful airborne contaminants that would otherwise impact your indoor air quality. This product also features 14 pleats /ft, meaning that it has more surface area where more particles can be filtered.



This furnace filter is quite inexpensive despite its very high quality. It can filter up to 90% of contaminants which means your air quality is much higher and filled with less harmful contaminants.



The Clean Living Basic Dust Filter is only for residential use. That means that it cannot be used in other indoor air spaces such as dance studios or offices, making it less convenient.



Multiple size options: Yes

Pleated: Yes

MERV Rating: 8

Number of units in each pack: 4

Durability: 90 days


Why Should Your Filter Be Regularly Checked and Changed?

The consequence of leaving your filter unchecked and unchanged for a long period is that it can begin to restrict airflow. The more particles it traps, the harder it becomes for air to pass through the furnace filter.

With restricted airflow, your furnace needs to work extra hard to pass air through the filter. This results in poor energy efficiency and could increase your energy costs. If it continues to remain unchanged, it may eventually break your furnace, leading to expensive repair costs.

How Often to Change Filters?


A furnace filter should be changed every 60 days. In contrast, there are furnace filters that can last 90 days. The duration in which it lasts depends entirely on the make and model of your filter. For your convenience, it is best to check first before making a purchase.

If you live in multiple occupancy households, the furnace filter likely needs to be changed more often. Several factors may increase the frequency of filter replacements. These include poor air quality due to pollution, or if you have pets.

For households with individuals who are prone to allergies, it may also be prudent to change your furnace filter more frequently.


Useful advice


You should plan for when you need to replace your filters. This might entail putting it on your calendar or setting a reminder. This will ensure that your energy usage is optimized and your costs kept low. It will also ensure good indoor air quality.

Purchasing the most suitable filter


When it comes to finding and purchasing the best filter for your household, you need to understand how filters work. To help you purchase the most suitable filter and improve your air quality, we have written the traits the reflect a good quality product and have given several examples of well-established products.

Before making a purchase, make sure that you keep in mind the factors needed for a good quality furnace filter for your circumstances. We wish you the best of luck and hope that you have a lot of fun when it comes to choosing the right furnace filter for you and your household.

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.