High Efficiency Air Filtration: The Growing Impact of Membranes

Membrane air filtration is an exciting recent development creating new opportunities through higher performing filter designs in the traditional industrial and newer consumer markets. This case study explores the growing importance of membranes in high efficiency air filtration. As such it covers applications as defined by the EN1822 standard and US/MIL STD HEPA and ULPA classifications, as well as the higher efficiency classes of the EN779 and ASHRAE 52.2 (MERV ratings) standards.