During the revision of EU Fan Regulation 327/2011, members of Eurovent Product Group 'Evaporative Cooling Equipment' proposed to exclude certain fan types from the revised Regulation. In this respect, Eurovent proposed in its Position Paper of April 2015 the following additional paragraph:
This regulation shall not apply to fans which are specified to exclusively transport gases consisting of a mixture of liquid water and air having a relative humidity consistently larger than 90%.
This definition proposed by Eurovent only excludes fans for evaporative heat transfer equipment and does not cause any loopholes or an artificial division of the market. The Position Paper explains why.