Understanding MERV Ratings

MERV ratings are determined by a standard laboratory test measuring how well air filters capture and hold airborne particles of a wide range of sizes. Dust, soot, pollen, smoke, and pet and human dander are a few of the types of particulate pollutants that may be found in indoor air. These particles can range in size from less than 1 micron (or millionth of a meter) to more than 10 microns. Simply put, MERV ratings are determined by what comes out compared to what went into the filter during standardized testing.

When comparing different mechanical filter products, MERV ratings are useful. In general, the higher the MERV rating, the more efficiently the filter initially performs in removing smaller particles. However, because of the smaller pore sizes needed to capture smaller particles, air does not flow as easily through a higher-rated filter. We recommend you take the performance of your HVAC unit into account when choosing which MERV rating is right for you.

MERV Rating Chart 

What is Good? MERV 10 

Our MERV 10 pleated air filters capture dust and other airborne irritants. For good indoor air quality every day, our MERV 10 pleated air filters will clean your air and protect your unit for up to 3 months. For home or commercial use in all types of HVAC systems.
  • Filters out pollen, dust, dust mites, pet dander, mold spores, auto emissions, and more.
What is Better? MERV 11
If you have pets or mild allergies, we recommend upgrading to a higher MERV rating. MERV 11 pleated air filters can remove dander and dust from the air for your comfort.
  • Captures finer dust and a greater percentage of airborne particles than MERV 10 filters.
What is Best? MERV 13 
Ideal for families, the MERV 13 can remove sneeze nuclei, tobacco smoke, bacteria, automotive fumes, copier toner, pet dander and face powder. Our MERV 13 pleated air filters provide relief from:
  • Allergens, dust, pollen, cough and sneeze mist, candle soot, and more.