Camfil Air Pollution Control has announced two updates to its popular line of Farr Gold Series® cartridge dust and fume collectors. A new patent-pending clamping system on the door hardware provides greater locking strength and makes it easier to close the door. The filter clamping system has also been updated to utilize laser-cut, welded-in clamp bar brackets in place of bolted-in brackets to hold the clamping bars to the tube sheet.