M-VAC filters are designed for medical vacuum applications. They are optimised for effective removal of bacteria and other contaminants (solids and liquids) when placed on the suction side of vacuum pumps. They prevent damage to the pump and biological infection of the surrounding environment. The liquids removed are collected in a transparent bottle that can be removed for sterilisation. The efficiency of the installed filter element exceeds the 0.005% penetration specified in HTM 2022 for infectious disease units and tested in accordance with BS 3928.