5 Best Electrostatic Air Filters: Washable & Permanent Reviewed

Josh Mitchell

Written By

Josh Mitchell

Expert Reviewed By

Holly Curell

Last Updated On

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I've come to the conclusion that an electrostatic air filter is the best option for purifying the air in my home.

This is an excellent choice; this filtration type is a cost-effective way to rid the home of harmful pollutants, ranging from airborne bacteria and viruses to dust and pet dander.

Making the decision on which electrostatic filter is best for your HVAC system isn't easy.

That's why I've compiled this complete list of the 5 best electrostatic air filter products for your home's HVAC.

Quick Glance - My Recommendations

X6672 Lennox Healthy Climate 16x25x5 Merv 16...

Lennox X6672 Healthy Climate

Editor’s Choice

Nordic Pure 16x25x1 (15 1/2 x 24 1/2 x 3/4)...

Nordic Pure

Affordable

Trophy Air Washable Electrostatic HVAC...

Trophy 6 Stage Filter

Recommended Washable Model

5 Best Electrostatic Air Filters For Clean Home Air

1. Lennox X6672 Healthy Climate

4.9

Overall Score


Filtration Ability

5.0

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Material Used

4.75

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Value for Money

5.0

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Who is the Lennox X6672 best for?

The Lennox X6672 is best for anyone who wants the highest-rated MERV filter for cultivating a healthy indoor climate.

Pros
  • MERV 16 rating
  • Made from hypoallergenic electrostatic material
  • Recommended by Consumer Reports
  • Additional carbon-coated filtration
  • Filters 95%+ dust and other allergens
CONS
  • Not washable, must be replaced every 12 months
  • High price tag

Up first on the list of best electrostatic air filters is the Lennox X6672. This filter measures 16" high by 25" wide by 5" deep.

This isn't a standard size, so you'll want to check your current furnace filter to ensure compatibility.

If this filter does fit your system, it’s a keeper. It’s rated at MERV 16, which is the highest possible rating on the MERV scale.
Trophy 6 Stage Filter merv 16

This rating is actually why I’ve chosen it as the #1 product, and thousands of happy reviewers have reported cleaner, fresher air after using it.

It’s even rated as the #1 choice by Consumer Reports.

The Lennox is ideal for filtering light dust, pollen, pet dander, and smoke. It’s even capable of handling airborne bacteria and viruses.

Compared to all other filters on this list, it’s the ideal choice for anyone suffering from seasonal allergies and/or asthma.[1]

Compared to others, the filter material used to construct the Lennox is unique.

It’s made from hypoallergenic and antimicrobial pleated electrostatic filter material, and it’s durable enough to last for up to 1 year.

Unfortunately, this is not a washable filter, so replacements are required.

Still, you can get a full 12 months of use depending on your home's current air quality and local environment.

The only other downside is the high cost, but that’s to be expected from a MERV 16 filter.

Feature

Details

MERV Rating

16

Sizes Available

16” x 25” x 5”

HVAC System Compatibility

Honeywell FC35A1001, FC100A1029, FC200E1029, Carrier/Bryant EXPXXFIL0016, EXPXXUNV0016, EXPXXLMC0016, FILCCCAR0016

Manufacturing Location

Overseas

Primary Material

Pleated electrostatic material


2. Nordic Pure MERV 12

4.7

Overall Score


Filtration Ability

4.75

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Material Used

4.5

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Value for Money

5.0

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Who is the Nordic Pure MERV 12 best for?

The Nordic Pure MERV 12 is best for anyone who wants an effective yet budget-friendly electrostatic filter replacement.

Pros
  • Great value for money
  • Standard size is compatible with most HVAC units
  • Can be washed or replaced
  • Moisture resistance to reduce the risk of mold
  • MERV 12 rating
CONS
  • Flimsy material isn’t ultra-durable
  • Cannot eliminate odors

Nordic Pure believes that keeping your home’s air clean shouldn’t be an inconvenience to your budget.

That’s why the company has provided clean-air-lovers with the Nordic Pure MERV 12 filter, which is both affordable and effective.

You can purchase a 6-pack of these filters for about $50, making this product the most affordable filter that actually delivers results.

These filters are technically washable and reusable, so a 6-pack isn’t really necessary, but it’s still nice to have backups on hand.

If you do choose to replace rather than wash, I recommend changing this product out every 3 months or even every month if you suffer from severe allergies or asthma.

It’s made from electrostatically charged synthetic pleated material that’s great for catching air particles as small as 0.3 microns, including bacteria, pollen, dust, dust mites, pet dander, smoke particles, and allergens.

Unfortunately, it’s not capable of eliminating odors.

Nordic Pure MERV 12 filter
The 16x25x1 dimensions are standard for most HVAC furnaces, so installing the Nordic Pure shouldn’t be a problem.

My only real complaint is that the pleated material is quite flimsy, but after extended use, this material is clearly capable of filtering pollutants from the air.

Feature

Details

MERV Rating

12

Sizes Available

16” x 25” x 1”

HVAC System Compatibility

Standard units

Manufacturing Location

USA

Primary Material

Electrostatically charged pleated material


3. Trophy 6 Stage Filter

4.6

Overall Score


Filtration Ability

4.0

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Material Used

5.0

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Value for Money

5.0

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Who is the Trophy 6-Stage best for?

The Trophy 6-Stage Filter is best for anyone who wants an easy-to-wash, easy-to-maintain filter designed for lifetime use.

Pros
  • Washable for lifetime use
  • Durable, heavy-duty aluminum
  • 6-stage filtration for maximum results
  • Reduces stress on HVAC units
CONS
  • Metal filtration is difficult to remove
  • Lower MERV 5 rating

The HVAC furnace filter made by Trophy is unique, particularly when it comes to the filtration material.

Both the Lennox and Nordic Pure use a self-charging pleated fabric medium, but this one is designed with heavy-duty aluminum that’s crafted in the United States.

Trophy 6 Stage Filter USA
There are a lot of benefits to using a good-quality metal air filter. First of all, the filter can be used for years and even a lifetime with proper maintenance and regular cleaning.

For that reason, this is my go-to pick if you’re looking for a washable product that has no end date.

Here's how the Trophy electrostatic air filter works.

  • As air is drawn in. 
  • It passes through 4 layers of thin, durable aluminum charged media.
  • Then passes through 2 layers of electrostatically charged media for added effectiveness against airborne particles like dust, dander, and pollen.

Because this is made primarily from aluminum, it doesn't have an official MERV rating.

After scouring electrostatic air purifier reviews for filters, most people compare this to a 5 or 6 MERV-rated filter.

That’s not a very high rating compared to the Lennox MERV 16 or Nordic Pure 12.

There’s good news, though; the lower MERV rating means continuous airflow, so your HVAC unit won’t be overly stressed with continued use of the Trophy filter.

All in all, this is a great choice if you want a washable filter that can be used indefinitely.

Just know that the internal filtration layers can be difficult to reach, so you’ll have to take the filter apart to properly clean it. 

Feature

Details

MERV Rating

5-6

Sizes Available

All sizes available

HVAC System Compatibility

Standard units

Manufacturing Location

USA

Primary Material

Aluminum, electrostatic media


4. Aerostar

4.6

Overall Score


Filtration Ability

4.25

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Material Used

5.0

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Value for Money

4.5

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Who is the Aerostar best for?

The Aerostar Filter is best for those looking for an effective MERV 11 filter for the furnace or air conditioner that won’t break the bank.

Pros
  • MERV 11 rating
  • Backed by Filtration Group Corporation
  • Affordable price
  • Can filter microscopic particles like bacteria and smoke
CONS
  • Not washable (replacements required)

The MERV 11 filter from Aerostar is another recommended product for improving indoor air quality.

The MERV 11 rating is ideal for filtering out all kinds of particles, including lint, dust mites, mold spores, pollen, pet dander, fine dust, and even smoke and odors.

This product uses the typical pleated material for filtration. It's not washable, so you'll definitely want to factor in replacement filter costs.

Luckily, it features an affordable price tag - you can get a pack of 6 for less than $50, which is similar to the Nordic Pure filters.

Depending on your home’s air quality and your air struggles, you should replace the Aerostar every 60 to 90 days.

That’s pretty standard, but if you want something that requires less frequent replacement, go with a washable filter instead, like the one from Trophy.

Aerostar MERV 11
Aside from the MERV 11 rating, I love that this product is backed by the Filtration Group Corporation.[2]

This company was founded in 1942, and it's constantly taking action to improve technology surrounding air filtration and purification.

Another great thing about Aerostar is that they make filters in all sizes.

This one comes in the standard 16x25x1 size option, but you can purchase the same filter in just about any size your HVAC unit requires.

Feature

Details

MERV Rating

11

Sizes Available

All sizes available

HVAC System Compatibility

Standard units

Manufacturing Location

USA

Primary Material

Electrostatically charged pleated material


5. BNX TruFilter

Highly Reviewed MERV 13 Filters

4.4

Overall Score


Filtration Ability

4.5

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Material Used

4.5

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Value for Money

4.25

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Who is the BNX TruFilter best for?

The BNX TruFilter is best for protecting your home against airborne bacteria and viruses, thanks to its MERV 13 rating.

Pros
  • MERV 13 rating
  • Ideal for filtering bacteria and viruses
  • Filters 98% of airborne pollutants
  • Amazing BNX customer service
  • Sustainable product reduces environmental waste
CONS
  • No washable feature
  • Some complaints about shipping damage

There’s a lot to love about the TruFilters from BNX, especially if you’re on the hunt for a highly-rated and positively-reviewed MERV 13 filter.

The MERV 13 technology is capable of up to 98% of airborne particles, including common bacteria and viruses found in households.

In addition to filtering out harmful bacteria, this electrostatically charged material is perfect for trapping odors, smoke, pollen, pet dander, dust, lint, mold, dust mites, and even smog.

BNX TruFilter filter

Best of all, it provides low airflow resistance to reduce strain on your HVAC unit.

After doing some research on the company itself, I learned a lot about BNX’s dedication to the environment.

All BNX products, including the TruFilter, are made to reduce environmental waste and packaged in sustainable recycled cardboard.

Similar to the filters from Aerostar, BNX filters are available in all sizes and can be purchased in 2, 4, or 6 packs.

My only complaint is the filter's lack of washability, but this isn't a big deal considering the affordable cost of replacements.

Feature

Details

MERV Rating

13

Sizes Available

All sizes available

HVAC System Compatibility

Standard units

Manufacturing Location

USA

Primary Material

Electrostatically charged pleated material


Comparing Electrostatic Air Filters (By MERV & Size)

Preview

Name

Rating

MERV Rating

Sizes Available

Price

X6672 Lennox Healthy Climate 16x25x5 Merv 16...

Lennox X6672 Healthy Climate

4.9

16

16” x 25” x 5”

Nordic Pure 16x25x1 (15 1/2 x 24 1/2 x 3/4)...

Nordic Pure

4.7

12

16” x 25” x 1”

Trophy Air Washable Electrostatic HVAC...

Trophy

4.6

5-6

All sizes available

Aerostar 16x25x1 MERV 11 Pleated AC Furnace...

Aerostar

4.6

11

All sizes available

BNX TruFilter 20x25x1 Air Filter MERV 13...

BNX TruFilter

4.4

13

All sizes available


ACLAB Note:

While HVAC filters are important for keeping the incoming air in check. If you are concerned about the air quality in your home, then you may want to look into dedicated air purifiers.

Comparing Electrostatic With Other Filter Types

In HVAC, filters draw in air, which is first heated or cooled depending on your thermostat settings and time of year.

Before the air is pushed through ducts and delivered to a room, it's cleaned for safe and healthy breathing, and this is all thanks to the furnace filter.

There are several types of filters to choose from, including:

Electrostatic Filters Vs Regular Filters

While an electrostatic filter utilizes static electricity to charge contaminants as they enter the filtration system, regular filters capture airborne particles within the pleated fiberglass material.

Because most electrostatic filters are washable and reusable, this type of filtration is much more cost-effective.

Regular filters require constant maintenance and replacement, and they often put additional strain on HVAC components since their material restricts airflow.

TL;DR: Electrostatic filters use static electricity to actively capture particles. They are also mostly washable. Regular filters are passive filters and they need to be replaced constantly.

Electrostatic Filters Vs Disposable Filters

Disposable filters are made to be used for a certain amount of time, and once that time is up, they’re thrown away and replaced.

Most electrostatic filters are reusable thanks to their washable materials, so they have a much longer lifespan.

With disposable filters, you’ll have to factor in replacement costs as well as their lack of eco-friendliness - both of which are major cons if you ask me!

TL;DR: Electrostatic filters are generally washable and reusable. Disposable filters are not and thus can be expensive to use in the long run.

Electrostatic Filters Vs HEPA Filters

HEPA, short for High-Efficiency Particulate Air, offers one of the highest levels of filtration, filtering out as much as 99.97% particulate matter from the air.[3]

The particles are collected through multiple filtration stages, so it’s a great choice for anyone.

Unfortunately, HEPA filters are not often washable, so you’ll have to factor in replacement costs.

Plus, HEPA isn’t ideal for capturing gases, chemicals, or odors, so keep that in mind if you cook with a lot of garlic or you’re a smoker.

TL;DR: HEPA filters are the ultimate at capturing particles from the air, but they are expensive to procure, they are not washable, and you have to replace them constantly.


How To Choose The Right Electrostatic Filter - Buyer’s Guide

Compatibility Of Electrostatic Filter With Your HVAC System

Before you buy any type of furnace filter, you need to make sure it’s compatible with your HVAC components.

Not every home’s HVAC can work with an electrostatic furnace filter, so you’ll want to check into this before you buy one of the products in the review section above.

In most cases, though, you can use an electrostatic filter as long as it’s the correct size.

TL;DR: The starting point when buying electrostatic filters is to first check if it is compatible with your HVAC system.

Size & Dimensions

Speaking of size, this type of filter comes in multiple sizing options.

It’s easy to confirm the size you need; just remove your current air filter and check the measurements listed on the product.

If you don’t see any dimensions listed on your current filter, feel free to whip out a measuring tape.

Just measure your current filter for width, depth, and height. There are lots of different sizing options to choose from, so this is a necessary step before you buy.

It’s also important to pay close attention to the nominal size versus the actual size.

The actual size will be slightly smaller because it just measures the material without the frame.

For example, the Aerostar filter is listed as 16x25x1, but the actual size is 15.75x24.75x0.75.

Luckily, many of these filters come in multiple sizes, like the BNX TruFilter.

With this one, you can buy a small 10x10x1 filter, a much larger 24x24x1 filter, and any size in between.

TL;DR: Make sure the size and the dimensions of the filter fit with your HVAC system. You can take out your old filter to get the exact dimensions supported.

Understand MERV Rating

MERV, short for Minimum Efficient Rating Value, is the measurement of filter effectiveness for capturing larger particles between 0.3 and 10 microns.[4]

The MERV scale ranges from 1 to 16, with 16 being the highest level of filtration - aka, the best.

Many electrostatic filtration options come with a MERV rating between 5 and 7, like the Trophy brand, but I've mainly included MERV 8 ratings or higher on this list for obvious reasons.

In terms of MERV, the best option on this list is, by far, the Lennox X6672 Healthy Climate filter.

This is rated as MERV 16, capturing up to 95% of particles ranging in size from 0.3 to 10 microns that pass through the filter.

TL;DR: The higher the MERV rating, the better would be the filter at capturing smaller particles. Additionally, the higher the MERV rating, the more expensive the filter will tend to be.

Types Of Particles Filtered

Electrostatic filtration is geared towards capturing lightweight dust, airborne bacteria, and pet dander.

It’s also great for trapping odors and gases. Unfortunately, it’s not ideal for things like heavy dust particles and thick pet hair.

You'll definitely want to think about your home's air and the common air struggles you deal with before deciding that electrostatic is the way to go.

ACLAB Note:

For capturing gases, VOCs, and odors, you need to have an air purifier with activated carbon filter. These cannot be installed in HVAC devices (unless stated so in the manual) and instead you will need to procure a standalone air purification device.

My home tends to have a lot of light dust, especially in lesser-used spaces like the guest room. So, for me, electrostatic filtration is perfect.

The MERV rating will also tell you a lot about which types of particles the filter is capable of capturing, so always opt for a higher MERV when possible.

TL;DR: Depending upon the MERV rating, electrostatic filters can capture particles ranging in size from dust and pet dander to bacteria and microbes.

Filter Material Used

Most electrostatic filters are made from a combination of polypropylene and mesh, like the BNX TruFilter.

However, this isn't always the case, and some are made from heavy-duty aluminum, like the HVAC furnace filter from Trophy.

Both materials have pros and cons.

Mesh material is better for capturing tiny allergens like bacteria and viruses, but they’re not as easy to wash, and in many cases, they’re not washable at all.

Metal filters made from aluminum are super easy to maintain.

That’s why I love the Trophy filter; you can spray the surface with an HVAC filter cleaner, let it dry, and put it back into place.

As long as you keep up with cleaning, this filter material can last forever.

TL;DR: Electrostatic filters use different materials. Polypropylene and mesh is great at capturing particles, whereas, aluminum and metal based filters are easier to maintain.

Ease Of Installation & Maintenance

Unlike installing a furnace or another complicated HVAC component, replacing your air filter is really simple.

To install, all you have to do is remove the old filter and slide the new one into place - it can be done in a matter of seconds.

If you get a washable electrostatic air filter like the Trophy 6-Stage or the Carter 20x25, maintenance is just as simple.

Both are made from aluminum that's easy to wash, and with regular cleaning, neither filter requires replacements.

TL;DR: Installing electrostatic filters is simple and as easy as taking out the old one and replacing it with the new one. If you are unsure, either consult the manual or speak to an expert.

Price & Warranty

Electrostatic filters are often more expensive than regular filters, but not by much.

The upfront cost is higher, keep in mind, because these are often washable and can be used for much longer than traditional pleated air filters.

You’ll also notice that filters with a higher MERV tend to be more expensive.

There’s a reason for that; these are more effective at capturing different air particles, so the higher price tag is 100% justified.

Depending on the product, warranties can range anywhere from 90 days to a lifetime.

Lifetime warranty policies aren’t common, and you’ll only come across those for metal mesh filtration like the Trophy aluminum filter.

TL;DR: Electrostatic filters are expensive compared to regular filters, but still won't break the bank. Plus since most of them are washable, they prove to be cheaper in the long run. The higher the MERV rating, the more expensive the filter.

How We Review & Rank Our Product List

At Air Conditioner Lab, our team follows a similar process when evaluating all products reviews before formulating our final lists for readers.

We begin by gathering data sources directly from brands, e-commerce platforms, online retailers and press releases.

These are then added to a master file we use to compare features specifications from all Central AC models. You can access this Central AC Sheet Here.

Next, we narrow down all the products on the market by evaluating user reviews, ratings and feedback from a wide variety of online and in-person sources.

Our team then discusses and co-ordinates our first hand experiences using these products, as well as gather independent opinions and feedback through Youtube and customer reviews.


FAQs

How Do I Know If My Electrostatic Filter Is Working Properly?

As long as the filter is new and the right size, it should start working immediately. You can check its effectiveness by inspecting the filter after a week or two from being installed. If there’s a buildup of particles like dust, dander, and pet hair, then it’s doing its job.

Do Electrostatic Air Filters Make Noise?

Yes, electrostatic air filters can make noise at times. Because this filter uses electricity to charge particles that pass through it, you might notice a slight popping noise, especially as larger particles are captured.

Continuous popping can mean that the filter needs cleaning, so use this noise as an indicator of when to wash your filter.

Do Electrostatic Air Filters Work Better Than HEPA Filters?

Electrostatic air filters work better than HEPA filters when capturing the tiniest dust particles.

While a HEPA filter can capture particles as small as 0.3 microns, electrostatic types can capture particles as small as 0.1 microns.

How Long Do Electrostatic Filters Last?

Many electrostatic filters are designed to last a lifetime. If you've chosen a washable reusable furnace filter, you can use it indefinitely with regular cleaning and maintenance.

If your filter isn't washable, replacing it every 90 days unless the packaging says otherwise is a good rule of thumb.

So, Which Is The Best Choice?

If you’re looking for optimal air filtration and the cleanest air possible, you can’t go wrong with the Lennox X6672.

It has an impressive MERV 16 rating, and the hypoallergenic antimicrobial material is great for combating allergies.

The Lennox isn't the most budget-friendly option, though. If you're looking for a more affordable clean air solution, check out the Nordic Pure filters instead.

Then there's the Trophy metal filter, ideal if you're looking for a permanent electrostatic air filter that lasts a lifetime.

My #1 Recommendation
Lennox X6672 Healthy Climate

  • MERV 16 rating
  • Made from hypoallergenic electrostatic material
  • Recommended by Consumer Reports
  • Additional carbon-coated filtration
  • Filters 95%+ dust and other allergens

References: 

  1. https://health.ucdavis.edu/blog/cultivating-health/tips-to-reduce-seasonal-allergy-symptoms-and-treatment-options-to-help/2023/03
  2. https://www.filtrationgroup.com/
  3. https://www.epa.gov/indoor-air-quality-iaq/what-hepa-filter
  4. https://www.epa.gov/indoor-air-quality-iaq/what-merv-rating
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Josh Mitchell

Founder

Josh Mitchell
My name is Josh and I am obsessed with home appliances. From portable AC units to heaters and air purifiers, I enjoy testing, learning and using these devices to improve the air quality inside my family home.

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Midea U Shaped Window Air Conditioner

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