Nuaire MEV ECO Central Extract System Multi Wetroom Extractor. The MEV-ECO is a centralised extract system capable of extracting air from multiple wet rooms in a property. The unit offers the latest in low-watt DC fans, combining AC supply and DC voltages to to bring you an extract fan that is both high powered and energy-efficient. The MEV-ECO provides quiet operation with reduced power consumption, low SFPs, and high airflow rates. At only 125mm deep, the unit saves space and ventilates up to 100 l/s.Are SAP recognised and have been designed to meet the most current building regulations, both Part F and Part L.