| 摘要 |
The present invention relates to an air filter and a method for manufacturing of such filter. The air filter comprises a filter frame (20) which comprises a plurality of side by side mounted elongated distance elements (11) which form passages for air, and a filter body, which comprises electrically chargeable fibres which are attached to distance elements (11) such that the fibres obtain an extension from the filter body (20) to a position located at a distance from and downstream the filter body (20) with respect to the intended flow direction of the air through the air filter. The filter frame (20) has a substantially round contour shape in that two peripheral and diametrically opposite distance elements (11) are shorter than the remaining distance elements (11) and that the side by side mounted dis-tance elements (11) have a length which increases successively in direction towards the centre of the filter frame (20). |
