The Purafil Deep Bed Scrubber (DBS) is a highly effective, bulk media scrubber designed for controlled environments with medium-to-high contaminant gas levels. The DBS remedies the gases’ corrosive effects and meets stringent air quality standards set by the International Society of Automation (ISA). It is ideal for refineries, steel mills, smelters, chemical plants, petrochemical plants, and other hostile environments. It also functions, if needed, as a shelter-in-place application to protect employees.