CONTROLLED DEPOSITION OF AIRBORNE PARTICLES INDOORS USING STRUCTURED ELECTROSTATIC FORCES

摘要

The airborne bioload (concentration of biologically active particles) has become a major health issue affecting the pregnant woman, the growing child and the elderly. The present invention relates to a method and apparatus for the reduction of the level of airborne particles in a micro-environment using an electrostatic field generated by an active electron repulsing emitter avoiding the creation of negatively charged surrounding structures allowing the generation of a surface current on a high resistivity surface and thereby the maintenance of said electrostatic field. The term micro-environment as used herein is intended to define a localized volume of air to be cleaned according to the invention. The micro-environment may be a large, contained environment such as a room of varying size.