Patent ID: 8241396

Claim:
A method for the removal of smut, fine dust and exhaust gas particles from polluted air, comprising: (i) providing a particle catch arrangement comprising a first object with a surface that can be charged, a second object with a surface that can be charged, a generator arranged to generate a positive charge to the first object's surface that can be charged and optionally a negative charge to the second object's surface that can be charged and to generate a static electric field of at least 0.2 kV/m between the surfaces, wherein at least part of the particle catch arrangement is part of or integrated with street furniture selected from the group consisting of a sound barrier, a crash barrier, a tunnel wall, a road sign, a traffic information system, a street lamp and a traffic light, and (ii) applying the static electric field over at least part of one or more geographical objects selected from the group consisting of a road, an open place and a built-on area, by applying a positive charge to the surface of the first object, thereby providing a positively charged surface, and wherein further a voltage of 1-50 kV is applied.