TWO-ZONED ELECTRIC FILTER FOR CLEANING AIR FROM AEROSOL AND TOXIC GASES Russian patent published in 1995 - IPC

FIELD: medical engineering; sanitary; hygiene. SUBSTANCE: device has ionizer, precipitator and electrostatic filter spaced in succession in the air flow direction in the common casing. Ionizer has grounded parallel plates with electrodes displaying corona discharge. Precipitator has a set of alternating potential and grounded parallel plates. Electrostatic filter has a potential and grounded electrodes, each consisting of alternating permeable and impermeable partition set across the air flow direction in electric filter. Permeable partitions of a potential electrode are placed opposite to the impermeable partitions of a grounded electrode. The space between the potential and grounded electrodes is filled with granulated filler. EFFECT: enhanced effectiveness in carrying out fine cleaning of air from toxic gases and aerosol impurities. 2 cl, 2 dwg