The Enermax, whilst set on its maximum speed, was not as powerful as the Sunon, however, it was a lot quieter. When set to its lowest speed (100% Resistance), I felt merely a breeze. The YumCha pushed more air than the Enermax at its lowest speed, however, was equalled when the Enermax was set
to 75% resistance. The Delta was equal to about 50% resistance on the Enermax.