Patent ID: 7163572

Claim:
An air purifier for removing particles in air, comprising: an outer casing having an air purifying cavity, an air inlet and an air outlet communicating said air purifying cavity with an exterior of said outer casing; an ionizer module for purifying said air and for generating ozone, which comprises: a power unit supported within said outer casing; and an ionizing electrode unit, which is electrically connected to said power unit, comprising a first electrode set as an electrode terminal disposed within said outer casing at said air inlet, a second electrode set disposed within said outer casing at said air outlet, and a third electrode set disposed within said outer casing at a position between said first and second electrode set, wherein a voltage of said third electrode set is higher than a voltage of said first electrode set for drawing said air from said first electrode set to said third electrode set, and said voltage of said third electrode set is lower than a voltage of said second electrode set for accelerating said air from said third electrode set to said second electrode set, such that when said ionizing electrode unit is arranged for effectively drawing said air from said air inlet to said air outlet through said air purifying cavity, said third electrode set forms a first particles remover for electro-statically attracting said particles in said air while said second electrode set forms a second particle remover for electro-statically attracting the remaining particles left from said third electrode set so as to substantially purify said air and to enhance an ozone level thereof.