The WhisperBlower is a new design developed by Prima Klima in conjunction with ebm-papst, with an aerodynamically optimised shape, so that the air flow is optimised to build up more pressure than with conventional models, consuming the same amount of energy but more quietly. The models have a 125 mm diameter nozzle and are available in different speeds, with adjustable temperature and speed control, as well as flows ranging from 450 m³/h to 800 m³/h, depending on the model.