Incorporate much of the advanced technology of AirClean’s Independence fume hood with the cost effective backbone of AirClean’s AC4000 folding and sliding-sash ductless fume hoods, the new series of Patriot ductless hoods feature the easy-to-use AirSafe TOUCH automatic safety controller for added operator safety. This color touch screen controller automatically increases or decreases blower speed to maintain the user’s pre-set face velocity, ensuring airflow is within standard operating parameters. Folding sash models are initially available in 36” and 48” widths, and sliding sash models are initially available in 48” and 72” widths.