Abstract: An airborne dust cleaner includes a case having an inlet at one side thereof, an outlet at another side thereof, and a space therein, a vortex vacuum generator installed at the inlet and generating and extending a low-pressure zone of a donut-like vortex around the inlet to collect fine dust, and a filtering assembly installed at the outlet and filtering the fine dust collected through the vortex vacuum generator.

Abstract: The disclosure aims to provide a ventilator module with improved efficiency. The ventilator module employs the dual structure of fans includes a swirler fan and a suction fan, in which the swirler fan is disposed at the front side and the suction fan is disposed at the rear side of the swirler fan so that a swirl formed by the drive of the swirler fan forms a donut-like low pressure zone around an inlet, and a tornado is formed by rotating the donut-like low pressure zone by the drive of the suction fan thereby cause the air below swirler fan to ascend at high velocity so as to be suctioned and discharged.