ventilation unit (VU) definition
ventilation unit (VU) means an electricity driven appliance equipped with at least one impeller, one motor and a casing and intended to replace utilised air by outdoor air in a building or a part of a building;
ventilation unit (VU) means an appliance equipped with at least a fan, motor and casing intended to replace utilised air by fresh air in a building or part of a building;
ventilation unit (VU) means an electricity driven appliance equipped with at least one impeller, one motor and a casing and intended to replace indoor air by outdoor air, in order to extract and dilute indoor air that is utilized/polluted due to presence of human beings and their use of the building, and due to emissions coming from building materials, decorative and interior products and equipment;