Safely Collects Hazardous Pharmaceutical Dust Gold Series Camtain bag-in/bag-out dust collector provides safe-change containment of hazardous dust in pharmaceutical manufacturing environments. Cartridges use an open-pleat media that reportedly provides twice the life and half the pressure drop of standard cartridges, and readily releases dust for pulse cleaning. Efficiency is 99.999% for 0.5 µ particles. Farr Air Pollution Control, Jonesboro, AR