초록 ▼

Electrically enhanced filter, includes a filter element, a pair of electrodes sandwiching the filter element, a DC, AC, pulse, or RF power supply coupled to the electrode to create an electrostatic field across the filter element and to produce attracting forces between micro-organisms contained in

Electrically enhanced filter, includes a filter element, a pair of electrodes sandwiching the filter element, a DC, AC, pulse, or RF power supply coupled to the electrode to create an electrostatic field across the filter element and to produce attracting forces between micro-organisms contained in the air and the filter element, and a power supply creating a sterilizing electrical field, which may be either an RF, DC, pulse, or AC power supply coupled to the electrodes and creating discharging or non-discharging voltages on the filter element to destruct the micro-organisms at and in the vicinity of the filter element.

대표청구항 ▼

[ What is claimed is:] [7.]7. An electrically enhanced filter, comprising:a filter medium;first and second electrodes sandwiching said filter medium therebetween;an air stream input directed towards said filter medium and laden with micro-organisms;means for applying a continuous electrostatic field

[ What is claimed is:] [7.]7. An electrically enhanced filter, comprising:a filter medium;first and second electrodes sandwiching said filter medium therebetween;an air stream input directed towards said filter medium and laden with micro-organisms;means for applying a continuous electrostatic field between said first and second electrodes to thereby enhance a capture efficiency of said filter medium;means for intermittently applying a sterilizing electrical field between said first and second electrodes, said sterilizing electrical field being a non-discharging electrical field applied concurrently with said electrostatic field, said intermittent sterilizing means applying said non-discharging electrical field across said filter medium for a duration sufficient to have a sterilizing effect and thereby destroy said micro-organisms collected at said filter medium and in a vicinity thereof and further enhancing said capture efficiency of said filter medium; and,an air stream output directed from said filter medium and substantially purified from said micro-organisms.