In which position/setting should AEChood (annual energy consumption) be measured? Boost or highest below boost?

The calculation of the AEC is based on the electric power input (WBEP) of the domestic range hood at the best efficiency point BEP (i.e. at the maximum value of the efficiency of a range hood). For fixing the BEP, the highest possible speed setting of the fan is to be used, including the boost position, if any.

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