Camfil Farr Air Filtration India Ltd. Manufactures Dust Collector for Pharmaceutical Applications. Camfil Farr Air Filtration India Ltd. Manufactures filters and clean air solutions. The Dust Collector for Pharmaceutical Applications has safe change containment systems that are available on both the cartridge access doors and dust discharge system underneath the collector. It is used in a variety of pharmaceutical applications such as Pill Presses, Tablet Coating, Fluid Bed Dryers, Spray Dryers, and general room ventilation.