Washable AC Filters vs Disposable Home Air Filters

While the upfront price of a disposable pleated air filter may be less, this type of filter will need to be replaced every 1-3 months depending on the manufacturer. The disposal of filters is harmful to the environment, and purchasing a reusable filter is actually more cost-effective. Over 100 million disposable air filters go into landfills each year so we hop you consider reducing that amount of filters that make it to landfills by purchasing a washable or reusable air filter for all of the filters in your home, business, or medical facility.

To help you visualize the long-term savings of washable home air filters, here is a cost savings calculator. 

Top Disposable Air Filters

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! 

Filterbuy

$7.25 / filter
  • MERV 8
  • 4-Pack

Aerostar

$5.00 / filter
  • MERV 8
  • 6-Pack

Filtrete 300

$6.00 / filter
  • MERV 5
  • 6-Pack

Filtrete 1000

$13.50 / filter
  • MERV 11
  • 4-Pack

Top Washable Air Filters

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 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
Is HEPA?NoNoNoNo

MERV Ratings Explained

Below you will find the MERV rating chart. I fond the EPA website chart difficult to understand, so I made it easier for you.

Technically, MERV filters are less than the minimum for HEPA. HEPA filters are high efficiency particulate air filters that remove 99.97% of all particles .3 nanometers in size. MERV Filters use different tests than the HEPA filters, but typically MERV filters will not be HEPA filters as shown in the chart above.

MERV Rating3.0 - 10.0 Microns1.0 - 3.0 Microns0.3 - 1.0 Microns.3 MicronsIs It HEPA?
1-4less than 20%---No
620% - 49.9%---No
850% - 84.9%---No
1085% +50% - 64.9%--No
1290% +80% - 89.9%--No
14-90% +75% - 84%-No
16--75% +-No
HEPA---99.97%Yes

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