The European standard for the ventilation of non-residential buildings, EN13779 states: “in a city environment, it is recommended to use a molecular filter (gas filter). The gas filter should preferably be combined with an F7 particulate filter downstream”. In accordance with the standard, Camfil Farr recommend Citycarb.
In a rigid compact format, Citycarb provides effective molecular filtration. Citycarb is appropriate for all new installations and to upgrade those already equipped with standard dimension filters. The Citycarb product provides combined particulate and molecular filtration in a single stage.