Camfil Farr Air Filtration India Ltd. Offers Cross Draft Ventilation Dust Collector. Camfil Farr Air Filtration India Ltd. Manufactures filters and clean air solutions. The Cross Draft Ventilation Dust Collector helps to keep away dust out of the breathing areas. It can be easily installed. Workers can perform their jobs unimpeded; no walls, no fume arms, no dust collection hoods and in most cases no more respirators.