• No minimums, no surprises — we ship every order for free! We'll get your filters out the door fast so you can enjoy clean air and water without paying extra.

  • Shop with confidence! If you're not completely satisfied with your purchase, you have up to one year to return it for a refund or exchange. We stand behind every filter we sell.

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  • Every order is carefully packed and shipped by our team in Indiana. Your purchase helps support American jobs and hardworking families right here in the Midwest. Our AIRx Furnace / AC Filters and ClearChoice Fridge Filters are made in the USA.

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AIRx Brand Dust Filters

Key Features
  • Traps lint, dust, pollen and dust mite debris
  • Reduces household allergies
  • Great at capturing larger particles
  • Will help keep your HVAC system clean
  • Replace every 3 months

Choose your size from these AIRx Dust filters

OUR AIR FILTER TYPES

Lint
Dust
Pollen
Dust Mite Debris
Pet Dander
Odor
Chemical Vapors
Mold Spores
Smog
Smoke
Tobacco Smoke
Aerosols
Bacteria
Lint
Dust
 
 
 
 
 
 
 
 
 
 
 
Lint
Dust
Pollen
Dust Mite Debris
 
 
 
 
 
 
 
 
 
Lint
Dust
Pollen
Dust Mite Debris
Pet Dander
Odor
Chemical Vapors
 
 
 
 
 
 
Lint
Dust
Pollen
Dust Mite Debris
Pet Dander
 
 
Mold Spores
Smog
 
 
 
 
Lint
Dust
Pollen
Dust Mite Debris
Pet Dander
 
 
Mold Spores
Smog
Smoke
Tobacco Smoke
Aerosols
Bacteria
Lint
Dust
 
 
 
 
 
 
 
 
 
 
 

HOW TO CHOOSE THE CORRECT FILTER

AIRx Breathe Easy
Tip 1

Why is MERV Important?

MERV stands for Minimum Efficiency Reporting Value and is an industry standard to rate a filters efficacy. We recognize this is not very easy to understand for consumers, so we developed our simple to use application naming system. Simply pick the filter that suits your needs.

Allergies, pets, odors and smoking all can greatly affect the quality of your indoor air. Discount Filters offers many different types of air filters to help you breathe easier and choose the correct filter based on your specific needs.

Finding the right filter thickness is important.

Ensuring that your filter fits properly in your HVAC system means making sure that you have not only the right length and width, but also the thickness of your filter.

Most standard air filters are 1 - 2 inches in thickness. Whereas media filters are typically 3 to 5 inches in thickness. The best way to measure your air filter size is to get out the measuring tape and measure it directly. Also your current filter probably has the dimensions printed on the frame.

Tip 2

WHAT DO FURNACE AIR FILTER MERV RATINGS MEAN?

Filter Spread

MERV (Minimum Efficiency Reporting Value) measures how effectively furnace air filters capture airborne particles. Higher MERV ratings generally capture smaller particles, but it's important to choose a filter compatible with your HVAC system.

MERV Rating Recommended Use
MERV 8 Standard household filtration. Good for a family that doesn't smoke, doesn't have pets, and doesn't have bad allergies.
MERV 11 Homes with pets or mild allergies. A MERV 11 filter reduces pet dander, dust, pollen and other particles that are present in your home.
MERV 13 Enhanced filtration for smaller airborne particles, including smaller dust particles, dirt, pollen, mold spores, pet dander and more from your home's air. The MERV 13 filter is typically more expensive and will also put more strain on your HVAC system, however the high quality filtration you will get will be well worth it.

Most residential HVAC systems perform best with furnace air filters rated between MERV 8 and MERV 13.