‘Fan’ means a rotary bladed machine that is used to maintain a continuous flow of gas, typically air, passing through it and whose work per unit mass does not exceed 25 kJ/kg, and which:
pöörlevate labadega seade seda läbiva püsiva gaasi-, tavaliselt õhuvoolu tekitamiseks, mille töö massiühiku kohta ei ületa 25 kJ/kg, ja: