Design, air flow, digit difference, new "DC 3 fan multi-fan". From gentle breeze in 7 levels of air flow, to powerful air blower up to 16.4 ft (7 m). You can freely set the air direction and air flow for each fan, and you can send it in multiple directions at the same time. Since the top to the bottom, the air flows evenly and is recommended for indoor drying. You can use it as a fan, a circulator, air circulation, and ventilation. The height is high, but it saves you unexpectedly, so it wont get in the way of your bedside or dressing room.