The search for an electrostatic air filter isn’t easy enough for you to do alone, especially if you’re a beginner in air filtration. It is tricky because there’s a lot for experts to educate you about. Nonetheless, I’m here with this list of the best electrostatic air filters to help.
Best Electrostatic Air Filters
- Nordic Pure 16x25x1
- K&N 20x25x1
- Carter 12x20x1
- Air-Care 16x20x1
- Venti Tech 16x20x1
- Trophy Air 16x25x1
- Aerostar 16x25x1
- LifeSupplyUSA 16x25x1
The 8 Best Electrostatic Air Filters in 2021
Throughout this section, let me discuss with you the best options for air electrostatic filtration that I found, what makes them unique among their counterparts, and their pros and cons.
1. Nordic Pure 16x25x1
Nordic Pure is no amateur in the world of air filtration, and they prove it once again with the affordable Nordic Pure 16x25x1 MERV 12 pleated air filter.
Folded or pleated filters for air like this one perform more efficiently because the folds create more surface area to trap a larger number of dust particles; thus, your HVAC efficiency would be maximized.
The pleats themselves are made of hypoallergenic, antimicrobial cotton, which is great news for people with allergies and everyone scared of mold growth inside the filters. Also, the cardboard frame is moisture-resistant and is made from recycled beverage board paper, which means it’s much easier on the environment than other disposable filters.
These budget-friendly air filters are pretty easy to install; you can just insert them where they should go without any complicated instructions. Remember that their nominal size is 16 x 25 x 1, while their actual size is 15.5 x 24.5 x 0.75.
Regarding performance, they have a high MERV rating of 12, which means they have 89.9% efficiency in catching allergens, pet dander, dust, and pollen from 1 to 3 microns, and 90% efficiency in catching those larger than 3 microns.
These filters have one downside, which is that they’re disposable. However, they require less frequent changes than other disposable ones and are more long-lasting.
Pros:
- Affordable
- Recycled material frame
- MERV 12
- Hypoallergenic and antimicrobial
- Effective pleated design
- Easy to install
Cons:
- Disposable
2. K&N 20x25x1
K&N is known for their automotive filtration, but filters for air at home became their main area of expertise, and there’s no better proof than the washable K&N 20x25x1 air filter.
Like the Nordic Pure filters, these pleated filters employ pleats of material to trap as many airborne particles as possible in the increased surface area, which leads to maximum HVAC efficiency.
The media is a synthetic polymer, which is a good easy-to-clean material for a washable filter. Also, the frame is durable and sturdy, as it’s made from extruded ABS polymer. Plus, the filter benefits from a rigid galvanized-steel backing that keeps it intact for a very long time. K&N trusts the quality of the filter with a lifetime warranty.
Besides, this filter is easy to install and comes in a variety of sizes, which enables you to match the filter to your HVAC system perfectly. These filters have a MERV rating of 11, which means they can combat bacteria, mold, pet dander, pollen, and more.
While this filter saves you a lot of money, the recommended cleaner spray is expensive because you will find yourself using it up quickly. Also, while the filters come in a lot of sizes, you have to bear in mind that sizes run small and you may have to order a larger size.
Pros:
- Washable
- Lifetime warranty
- Come in a variety of sizes
- MERV 11
- Durable
- Effective pleated design
Cons:
- Cleaner spray is expensive
- Sizes are smaller
3. Carter 12x20x1
If you’re looking for premium, permanent electrostatic filters, you won’t be disappointed in the Carter 12x20x1 air filter.
The filter’s premium status comes from its antimicrobial layers of woven polypropylene, which means that there won’t be any contamination inside the filter. Like all electrostatic filters, the fibers are self-charging electrostatic ones that have a pretty high dust arrestance of 94% and a dust-holding capacity of 165 grams.
In addition, an extruded stainless steel mesh supports this air filter, along with an extruded aluminum, gold anodized frame that looks too attractive for an air filter and adds to its lifespan. Of course, as a washable electrostatic filter, its ability to save money in the long run with its lifetime warranty is insane.
Like the K&N 20x25x1 air filter, this filter comes in many size options to cater to all customer needs. Plus, this air filter has a MERV rating of 8, which enables it to grab pollen, pet dander, debris, lint, dust mites, and mold spores away from your HVAC system efficiently.
All that being said, these filters aren’t perfect. Firstly, they’re pretty expensive upfront. However, they’re permanent and pay for themselves in no time. Secondly, they share a flaw with the K&N 20x25x1 air filters, which is that their sizes are a bit too small, so keep that in mind.
Pros:
- Come in a variety of sizes
- Washable
- Aluminum frame and stainless steel mesh
- High dust arrestance
- Antimicrobial material
- Lifetime warranty
Cons:
- Expensive
- Sizes are smaller
4. Air-Care 16x20x1
The Air-Care 16x20x1 air filter is another premium option among washable filters that are worth your time, money, and consideration.
You’ll be glad to know that this electrostatic air filter has antimicrobial material that keeps the inside of the filter clean and healthy; mold growth inside dirty filters is a serious issue that you never want to encounter.
In addition, it is ten times more efficient than a disposable HEPA filter and has a 88% dust-holding capacity, which means it will catch allergens, dust, pollen, bacteria, and pet dander. These pesky irritants will have to go through five layers of filtration without any harmful ozone emissions, which you may deal with when you get low-quality electrostatic filters.
Moreover, this electrostatic air filter comes with a galvanized aluminum frame, which increases its durability and protects it from constant use. Its lifetime warranty also puts your mind at ease. Like all good air filters, it comes in many size choices to match your HVAC system perfectly.
However, it comes as no surprise that such a good electrostatic air filter is so expensive. Nonetheless, being a permanent one, it can save money more than the best HEPA filters. Also, while it’s pretty effective, I wish it had a MERV rating so that I can find a clear reference to its performance.
Pros:
- Multiple layers of air filtration
- Washable
- Lifetime warranty
- Antimicrobial material
- Galvanized aluminum frame
- High dust-holding capacity
Cons:
- Expensive
- No MERV rating
5. Venti Tech 16x20x1
If you’re looking to save money with budget-friendly electrostatic filtration, there’s no better option for that than the Venti Tech 16x20x1 air filter. Most washable filters tend to be expensive, but people on a budget deserve good air quality, as well.
The media of this air filter is made from electrically-charged woven polypropylene that uses friction to capture 93% of particles up to 10 microns, including most dust, dirt, pet dander, and hair. In addition, this incredibly affordable air filter impresses with a galvanized steel frame that keeps it going for a very long time.
Moreover, you can install it in any direction with ease and choose from a variety of fittings to find the right size for your HVAC system. So, get ready to save money with a custom fit for life.
However, not all electrostatic air filters are equal, and each of them has its downsides. This air filter has a peculiar one, which is that you may have to make adjustments to it, depending on your airflow needs. So, you may have to tinker and DIY your way out of this one.
Pros:
- Incredibly affordable
- Come in a variety of sizes
- Washable
- Galvanized steel frame
- Captures 93% of particles up to 10 microns
Cons:
- Might have to tinker with it for airflow
6. Trophy Air 16x25x1
If you’re a fan of washable, metallic electrostatic air filters, you’ll love the Trophy Air 16x25x1 air filter and how clean your home will be afterward.
This air filter boasts having multiple layers that make it impossible for pet dander and other pollutants to penetrate into your HVAC system. The four layers of high-quality aluminum ensure the filter’s durability, which you need in a washable one.
Also, there are two layers of electrostatic media to increase the filter’s efficiency in using electricity to charge and attract as many airborne pollutants as possible.
In terms of installation, Trophy Air knows how to make it easy, considering how this air filter is multi-directional, meaning you can install it either direction effortlessly. Also, it comes in different sizes so that you can get the right one for your home.
However, no electrostatic air filter is perfect, and this Trophy Air one is hard to remove for washing, which you’ll need to do every month. A handle would have been a nice addition but it was overlooked, unfortunately. Besides, it catches larger contaminants like a champ but isn’t effective for smaller ones. Finally, sizes could be a bit small, so double check before you order.
Pros:
- Multiple layers of air filtration
- Easy to install
- Durable
- Come in a variety of sizes
- Washable
Cons:
- Tricky removal for cleanup
- Not great for smaller particles
- Sizes are smaller
7. Aerostar 16x25x1
Most air filters are infamous for being too expensive to be replaced at the right time. However, you definitely won’t encounter this problem with the most affordable item on my list, the Aerostar 16x25x1 air filter.
Like the Nordic Pure and K&N filters, this one has a pleated design, which aims at providing a higher dust-trapping capacity; thus, it will get rid of more irritants than its non-pleated counterparts.
The electrostatically-charged 100% synthetic media causes friction between airborne particles, attracts them, and eliminates them before they contaminate your HVAC system and home.
Furthermore, this electrostatic air filter impresses with its ease of installation. Also, it comes in a lot of size options, and you get to choose which one you need based on the filter area in your HVAC system.
It blew me away how such an affordable air filter could have a MERV rating of 11 that enables it to catch lint, dust mites, pollen, pet dander, and fine dust with high efficiency.
This air filter is one of the best, but it still has its cons. Since most electrostatic cleaners are washable, I will count its disposability as a downside. While it performs impressively and nobody expects a lot of durability in a disposable air filter, it is a little bit fragile and may bend if you insert it too hard.
Pros:
- Come in a variety of sizes
- Effective pleated design
- Most affordable
- MERV 11
Cons:
- Disposable
- Fragile
8. LifeSupplyUSA 16x25x1
If the above options aren’t what you’re looking for, consider the LifeSupplyUSA 16x25x1 air filter. This electrostatic air filter has a self-charged mesh that makes it easy to wash. Also, the aluminum frame is rugged and anti-rust, which is great news for long-term usage.
You can install this electrostatic filter easily and in any direction. In addition, this air filter boasts a variety of size and pack options, meaning that you can choose whether to buy one filter or more, up to a hundred. This level of customization is unique to this brand, and it’s refreshing.
All that being said, every electrostatic air filter comes with its downsides. Firstly, it makes a ton of claims about what it can do, and while it can improve home air quality, I would confidently say that it’s the least efficient one on the list. Secondly, its price isn’t the highest, especially in this list, but it feels overpriced compared to its performance.
Pros:
- Custom package quantity
- Washable
- Durable
- Comes in a variety of sizes
Cons:
- Least efficient on the list
- Overpriced
How to Pick an Electrostatic Air Filter
Choosing the right electrostatic air filter isn’t without complications. There’s a lot to consider about them before buying the suitable one. So, here’s everything you need to know about electrostatic air filters.
Size
The size of the electrostatic air filter you have in mind matters more than anything else because it decides whether or not it will fit in your HVAC unit. You can decide its size by measuring either your current filter or the filter space. Then, choose from the available size options.
Another thing that you have to bear in mind with electrostatic air filters is that there are often two sizes: actual and nominal. Most electrostatic air filters state their nominal sizes, which are the actual ones but rounded off to the nearest inch. So, keep that in mind in your filter shopping spree.
MERV Rating
Minimum Efficiency Reporting Value or MERVs indicate how efficient an electrostatic air filter is in capturing air particles that range from 0.3 to 10 microns, depending on the rating. The MERV rating is on a scale from 1 to 20; 1 is the least efficient, and 20 is the most.
Electrostatic air filters tend to have a rating of 13 or lower, which offers excellent air filtration without blocking airflow, which is something that disposable air filters with MERV ratings higher than 13 tend to do because there is something as too much filtration.
Design and Durability
In terms of electrostatic air filter design, you might hear the word “pleated” a lot. A pleated filter tends to outperform others in trapping fine dust, pet dander, and different types of air particles. Why? Because their folds introduce more area to make catching more particles possible.
However, while most of them aren’t electrostatic, the ones that are electrostatically charged have the best of both worlds.
Another aspect of design that affects a filter’s performance is the number of filter layers, as the higher the number, the more efficient a filter is. Also, an antimicrobial layer inhibits the growth of bacteria and mold inside the filter, a handy feature, indeed.
What about durability? Look for air filters with materials that protect them and help them last, such as an aluminum frame and stainless steel layers.
Compatibility
Compatibility is more than important because you don’t want to buy an air filter that you can’t use with your current AC or furnace air system. Each filter tells you in its name whether it is a strictly AC air filter, furnace filter, or both.
What Are the Advantages of Electrostatic Air Filters?
Eco-friendly
Traditional air filters tend to be disposable, meaning that when they get dirty, you throw them away and get new ones. This process leaves a shocking number of old filters in a landfill, which is ironic, considering that we use them to clean the very air that we pollute.
However, unlike disposable filters, most electrostatic air filters are washable and reusable and last a lifetime. So, by getting an electrostatic air filter, you help preserve the environment.
Cost-effective
Disposable filters trick most people into thinking that they’re the most convenient because they don’t need cleaning, yet they’re not. The initial low cost of disposable filters may make your mouth water, but the cost of getting a new filter and replacing it once it gets dirty adds up to a lot of money.
On the other hand, a reusable electrostatic air filter is an initially more expensive investment that turns out to be the more cost-effective option in the long run.
Performance
An electrostatic air filter is an innovative way to protect your home from debris and dust particles. This filter does its job by using static electricity that attracts and traps small dirt particles with a collector.
So, an electrostatic filter prevents all tiny contaminants from getting into your heating or cooling system, which helps improve the air quality of your home.
How Long Do Electrostatic Air Filters Last?
It differs from one filter to another, depending on their type. Disposable electrostatic air filters tend to last longer than other disposable ones, but you have to replace them every few months. However, washable electrostatic air filters can last for 5 to 10 years. The best thing about them is that they tend to come with lifetime warranties.
Are Electrostatic Air Filters Better?
Electrostatic air filters are better than others in different categories. The fact that they save you time and money by lasting longer gives them the edge. Also, their use of static electricity to attract and trap airborne particles.
However, most of them don’t handle mold spores, tobacco smoke, or VOCs, at least depending on the MERV rating. So, bear that in mind to make the right decisions.
Can You Wash Electrostatic Filters?
You can wash the majority of them pretty quickly. Every few months, depending on your use of the HVAC system, remove the air filter. Then, hose it down with water or wash it with a solution of mild soap and water. Let it air dry completely, then insert it back in its place.
What Is the Lowest MERV Rating?
The lowest MERV rating is 1 in theory and 3 on the market. I wouldn’t personally recommend either because their low efficiency makes them almost useless. I would recommend a minimum of MERV 6 for an air filter to perform as you expect it to.
What Are Electrostatic Air Filters Made of?
It differs from one unit to another, depending on the type and purpose. If an electrostatic filter is washable, it’s made from woven synthetic material. On the other hand, if it’s a pleated one, it’s probably made of a material that folds easily, such as cotton, paper, or polyester.
Do Higher MERV Filters Restrict Air Flow?
It depends on their quality and how high the MERV rating is. An air filter with a MERV rating that lies between 1 and 13 most likely won’t restrict airflow. However, those with an MERV rating higher than 13 may restrict airflow because their filtration is more excessive.
Final Words
As you can see, there are many aspects to consider that go into choosing your best electrostatic air filter. So, I will simplify it for you by announcing the clear winner, which, in my opinion, is the Nordic Pure 16x25x1 MERV 12 air filter.
I can start by saying that it’s basically cheap in price, but not in quality. This unique air filter comes with an efficient pleated design that manages to trap more dirt, dust, and lint than non-pleated ones on the list. My best air filter also employs hypoallergenic, antimicrobial cotton as media, which saves the filter itself from growing mold or bacteria on the inside, as well.
What’s more, the cardboard frame is moisture-resistant and made from recycled material, which makes it one of the few eco-friendly, non-reusable filters. So, you can have the best of both worlds.
In addition, you can install this electrostatic filter yourself hassle-free, and it comes in different sizes, which is important, as I’ve stated before. Another advantage that is a very important feature is its incredibly high MERV rating of 12, which means it almost has the highest rating for an electrostatic air filter.
Additional Reading
