It depends! For residential ventilation units, labelling is mandatory. But for non-residential ventilation units the regulation text regarding energy labelling (1253/2014) explicitly states that: “Non-residential ventilation units” (NRVUs) should be excluded from labelling as these products are chosen by planners and architects and are largely independent from consumer behavior and market patterns.”
However, energy labelling may still be relevant for ventilation units for non-residential units. A high-quality ventilation unit should have Eurovent labelling, which in contrast to ecodesign labeling is voluntary. The Eurovent labelling is a guarantee that the performance of the product corresponds to what is promised in the product specification.