A Guide to MERV Ratings for Better Building IAQ

There are many types of air purification systems available to homeowners and commercial facilities, and understanding the effectiveness of each may seem overwhelming. Fortunately there is a measure that helps quantify how air purification filters perform. The Environmental Protection Agency (EPA) established minimum efficiency reporting values, or MERVs, that rate a filter’s ability to capture particles between 0.3 and 10 microns. This value can help you determine the right type of filter for your building. Read more at THERMA >>