Learn About Air Purification and Filtration

If We Rated Cars Like Air Filters

August 03, 2018 |

ASHRAE 52.2 gave us the Minimum Efficiency Reporting Value (MERV) for air filters, creating a 16-point chart that tells us what percentage of particles in a certain size range will be removed by a filter.  This system was an improvement when it was introduced in 1999 ...