| 摘要 |
The invention relates to a device in connection with an electrostatic filter for air purifying, said filter including an ionizing portion (1) and a precipitating portion (2). The precipitating portion (2) consists of a unit (10) that is composed of at least one non-conductive or partly conductive air permeable layer (12), provided between at least two proximate, conductive or partly conductive, air permeable layers (11, 13), one (11) of said layers having a higher potential than the other (13), an electrical field being present between the layers (11, 13) in order to collect particles in an air stream that is transported through the precipitating portion (2).
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