Patent ID: 6878195
Filing Date: 2005-04-12
Classification: A61L,F24C,Y10S

Abstract:
1. An air purifier comprising: a ventilation hood with a ventilation hood plenum disposed therein; a ventilation duct connected to said ventilation hood; a fan for drawing contaminated air through said ventilation hood into said ventilation hood plenum; an ultra violet radiation generating apparatus which generates ultra violet radiation that is incident on a contaminated air stream traversing through said ventilation hood plenum, said ultra-violet radiation generating apparatus generating ozone for oxidizing a plurality of contaminants in said contaminated air stream; a first member being disposed at an inlet of said ventilation hood, wherein said first member blocks said ultra violet radiation from exposing an individual in proximity to the air purifier; and a first switch being disposed between said first member and the air purifier, said first switch modulating said ultra violet radiation generating apparatus between at least a first condition and a second condition upon removal of said first member.