A charged particles cleaning apparatus for cleaning and removing charged
particles from a surface includes (a) a housing; (b) a surface scrubbing
member mounted within the housing for contacting the surface and
frictionally removing charged particles therefrom; (c) an air blower for
pulling an air stream out of the housing; (d) a manifold connecting the
housing to the air blower for directing the air stream and charged
particles therein out of the housing, the manifold including manifold
walls having inside surfaces defining a duct passage for the air stream;
and (e) at least one biasing source connected to the inside surfaces of
the manifold walls for biasing the inside surfaces to prevent build up of
charged particles on the inside surfaces, thereby reducing costs of
periodic cleaning of the manifold walls.