Air Velocity 0.36-0.6m/s(THREE SPEED ADJUSTABLE) HEPA FILTER 99.99%@0.3um (H13)/99.999%@0.3um(H14)/ULPA FAN MOTOR Airfoil turbo Fan Motor(aluminum) Power Supply AC/DC (110V , 220V), 50/60HZ, 1PHASE Detailed Photos ·HEPA Filter ...