Patent ID: 7785403

Claim:
An air purifier comprising: a main frame; a discharging device installed in the main frame and having a discharging portion; a dust collection device installed at a lateral side of the discharging device and having a dust collection portion, wherein the dust collection portion is capable of motion relative to the discharging portion; and a voltage generator electrically conducting the discharging portion and the dust collection portion; wherein the electrical connection between the discharging portion and the dust collection portion is selectively adjustable; said discharging portion and dust collection portion selectively disposed in at least one of a group consisting of at least three positions relative to each other, said at least three positions comprising: a first position wherein said discharging portion and dust collection portion are located one within the other; wherein said voltage generator selectively applies a first voltage on said discharging portion and said dust collection portion; a second position wherein said discharging portion and said dust collection portion are substantially separated one from the other; wherein said voltage generator selectively applies a second voltage on said discharging portion; a third position wherein said discharging portion and said dust collection portion are substantially located proximally one to the other; wherein said voltage generator selectively applies a third voltage on said discharging portion and said dust collection portion.