BioCel M-Pak filters fill the gap between ASHRAE-grade high-efficiency filters and ultra-high-efficiency HEPAs, at a much lower weight and pressure drop. The BioCel M-Pak filter is designed to remove airborne biological contaminants in critical areas in hospitals, pharmaceutical plants, and food processing plants. The filter is engineered to meet the exacting requirements of precision manufacturing operations and laboratories, where very high-efficiency filtration of fine particulate matter is necessary.