Minimum Efficiency Report, or MERV, values measure a filter's ability to capture particulate matter. Filters with a MERV-13 rating or higher are capable of trapping smaller particles, including viruses. MERV ratings range from 1 to 20, with higher numbers indicating a higher percentage of contaminants blocked by the filter. The Merv 13 Green Pleat was designed to meet the air filtration efficiency standards set out in LEED programs for existing buildings and new construction, as well as an effective IAQ tool for LEED in schools.
This filter is able to provide the strongest possible protection without compromising the reliability of the HVAC system fan. Simply replacing the existing lower efficiency pleat or disposable air filter with the Green Pleat can upgrade the system to the MERV 13 level required by the LEDs. MERV 14 and higher filters can capture particles that are even smaller than previous MERV ratings, ranging from 0.3 to 1.0 microns in size. The charged fibers allow the Green Pleat to reach MERV 13 levels after installation and immediately trap contaminants in the air.