What Is a MERV Rating?

Have you heard of the MERV rating? It’s a system that measures the effectiveness of air filters at removing particles like dust and allergens. It’s helpful for homeowners to understand this rating system so they can choose the right air filter for their home. For more advice on selecting and replacing your air filters, contact an HVAC specialist.
What Is a MERV Rating?
The term MERV rating stands for Minimum Efficiency Reporting Value Rating, and it’s a system for measuring the effectiveness of an air filter in removing particles from the air. MERV ratings range from 1 to 20, indicating filter efficiency levels.
While a higher MERV rating sounds good, it’s not always what you want. The higher your air filter’s rating, the more particles it will catch, including dust, pollen and bacteria. Higher MERV ratings effectively trap smaller particles such as bacteria and allergens. However, a higher rating also means that less … Read Full Post »