What Is The BEST Washable AC Filter?

We scoured the internet for the best washable air filters on the market and we were able to narrow it down to our top 4. We identified the most important features to consider when purchasing a washable AC filter and distilled that down into an easy to understand chart. Below the chart, you will find detailed reviews with images of each that include unboxing, assembly, and install. After the reviews you have: a search box where you can search our site for the perfect air filter, a side length selector if you have measured your furnace, our brands we offer, and all dimensions we offer. Enjoy! 

Table of Contents

This page contains affiliate links. By clicking the link and making a purchase we earn a small commission at no cost to you. Your support is greatly appreciated.
Thank you!

We scoured the internet for the best washable air filters on the market and we were able to narrow it down to our top 4. We identified the most important features to consider when purchasing a washable AC filter and we found AirThreads to be the best machine washable air filter. 

Washable AC Filter Comparison Chart

Best Washable AC FiltersAirthreadsAqua-FlowCarterK&N
MERV RatingMERV 8MERV 6MERV 8MERV 11
Average Price$23 - $60$11 - $180$50 - $60$23 - $50
Machine Washable?YesNoNoNo
Size Options17Infinite2615
Warranty1 YearNoneLifetimeLifetime
Number of Filters this Replaces36UnknownLifetimeLifetime
Is Electrostatic?NoNoYesNo

AirThreads AC Filter Review

The AirThreads filter really surprised me with the quality of product that arrived. 

Best Machine Washable AC Filter

AirThreads is the best machine washable AC filter that we tested. There was a great unboxing experience. It comes with a magnetic washing reminder for the refrigerator!

What’s Included:

This filter had a great unboxing experience. It comes with a magnetic washing reminder for the refrigerator! It was very easy to put together and the packaging looked great. We didn’t rank these based on the best unboxing experience, but this one would have one that contest. 

We also have a few other images below from when we opened the packaging. 

Unboxing and Assembly:

Drawbacks:

The only downside to this filter was that it was the least durable of all the filters we tested. This one only lasts for about 36 washes (from the manufacturer’s website), which if you think about it is still 3 years of useful life if you wash your filter every month. I also question if the flimsy plastic frame will last the entire lifetime of the fabric material! Perhaps that is why the manufacturer advertises both the plastic frame and the fabric filter sold separately on their site. I anticipate if I stick with this filter for the long haul I will be periodically replacing the frame. Maybe I should just buy a few now just in case so I am not using my AC without a filter until the new one arrives!

Aqua-Flow AC Filter Review

While the Aqua-Flow had the lowest MERV rating of any of the filters we tested, it would still do a good job cleaning the air in your home and that MERV 6 rating is not bad by any means. For more information on MERV ratings, you can check out our post on MERV Ratings here!

Most Sizing Options

Aqua-Flow has the most size options of any of the washable air filters we researched. They offer their product in a "roll' that you can cut to fit any size home air filter. We thought that was pretty cool and worth noting.

Drawbacks:

  1. Who Is This Company? One thing that worried me about this product was the lack of a website and my inability to be able to find any information on the company. Also, judging by the other products they sell on amazon it looks like they specialize in fish tanks and fish tank filters. 
  2. No Warranty: There was also no mention of any king of warranty. Even if there was, I have no idea where to contact this company if you had an issue and needed it replaced. 
  3. How Long Does It Last? I could not find any information online (or their non-existent website) that offer any explanation on how long this would last or how many filters this washable filter replaces. The good news is that this filter was the least expensive on the list so wort-case-scenario you buy a full roll and cut off a new one when it falls apart.  

Carter AC Filter Review

We scoured the internet for the best washable air filters on the market and we were able to narrow it down to our top 4. We identified the most important features to consider when purchasing a washable AC filter and distilled that down into an easy to understand chart. Below the chart, you will find detailed reviews with images of each that include unboxing, assembly, and install. After the reviews you have: a search box where you can search our site for the perfect air filter, a side length selector if you have measured your furnace, our brands we offer, and all dimensions we offer. Enjoy! 

Best Electrostatic Washable Home AC Filter

The Carter washable home air filter seemed incredibly sturdy. The metal frame stood out when compared to the other flimsy plastic frames of the competitors. I certainly believe this will in fact last a lifetime like the warranty suggests as well as providing great air quality to my family and pets.

Unboxing and Assembly: 

Electrostatic Air Filters:

It is also worth noting that there were a few other options for electrostatic air filters on amazon. We chose this one due to the reviews and price, but here are a few other options for you if you are interested in electrostatic AC Filters. 

Drawbacks: 

  1. Is It Easy To Clean?: While this filter is incredibly sturdy, is not as easy to clean as some of the others. You cannot simply throw this one into the laundry or hose it down. The electrostatic material means you need to use a vacuum cleaner to suck the particles out of the metal material. It is a little bit time consuming and I wonder about how clean I am actually getting it. 

K&N AC Filter Review

Did we save the best for last? It is quite possible! 

Highest MERV Rating

Aqua-Flow has the most size options of any of the washable air filters we researched. They offer their product in a "roll' that you can cut to fit any size home air filter. We thought that was pretty cool and worth noting.

The K&N Washable home air filter had the highest MERV rating of all the Washable Home Air Filters we tested. If you are shopping for a washable AC Filter and air quality is your biggest concern, you should go with the MERV 11 rated K&N Filter. 

Drawbacks:

  1. K&N Cleaning Spray: The K&N AC filter requires that you purchase a special solvent to help clean the filter and remove the dirt and dust from the filter. While I understand the idea of using a cleaning agent to help maintain my unit, it is just another thing that I have to purchase to keep my house in order. One of the reasons why I am so excited about washable AC Filters is that I don’t have to waste time running out to the store and buy a new filter when it needs to be replaced. This is just another things that I have to remember now!
  2. The Lifetime Warranty: I really love that the company offers a lifetime warranty, giving me the peace of mind that I am looking for. However, The fact that this filter is made from what looks to be some sort of cloth material leads me to believe that this item was not designed to last a lifetime. The last thing I want to do is call the company two or three years from now and argue with the company over the phone about a lifetime guarantee, prove that I purchased the item, get sent a replacement, blah blah blah… The Carter filter seems to be one that would last significantly longer than this one, but I will have to find out over time! 

Our Final Rankings

What is our opinion for the Best Washable Home AC Filters on the market? 

Drumroll Please…

  1. Airthreads
  2. Carter
  3. K&N
  4. Aqua-Flow

And there you have it! The top 4 washable AC filters on the market ranked for your shopping convenience. 

Search All Washable AC Filters Here