25" ionic air purifier Electrostatic dust collector plates: collect dust and particles. Easy to remove and clean. Just wipe it clean with a damp sponge or cloth. No filter to replace. Ozone: 5 million Negative ions can effectively remove particles as small as 0.01 microns (0.4 micro inches) from the air. Negative ions will combine with the pollutants and make them too heavy to float in the air and they fall to the floor. When you vacuum the floor, these particles get removed. Power: 28w 2 fan speeds: whisper (low), turbo (high). Swing (rotate) function: help circulate the air Power supply: 100v/60hz; 240v/ 50hz Size: 25"(height) x 6"(width) x 9"(depth) 6pcs/ctn