The PermaPure Mini-GASS systems prepare hot gas sample streams for high performance gas analysis. This popular unit removes particles, acid mists, and water vapor from a gas stream without the loss of analytes. Mini-GASS unit offers several options and configurations, including mounting directly on the stack so very little heated line is used. An automatic drain installed on the filter will remove acid mists. They are designed to process highly corrosive and difficult samples including gas streams containing high levels of HCl, HF, NOx or SOx.