AirClean Systems’ Patriot ductless hoods incorporate much of the technology of the proprietary Independence fume hood with the cost-effective backbone of the company’s AC4000 folding and sliding-sash ductless fume hoods. Patriot ductless fume hoods feature the easy-to-use AirSafe TOUCH automatic safety controller for added operator safety. This color touchscreen controller automatically increases or decreases blower speed to maintain the user’s pre-set face velocity, ensuring airflow is within standard operating parameters. The current face velocity is displayed at all times. AirSafe TOUCH also monitors the bonded carbon filtration bed, alerting the user audibly and visually should filter saturation occur. The fume hoods feature an “application confirmation” sequence that is required with every use of the hood. AirSafe TOUCH displays the approved chemical class for the hood, and waits for a confirmation from the user before allowing the hood to be used. In addition to safety features, AirSafe TOUCH also provides a multi-language and multi-unit capability not found in most ductless hoods. With the press of a button, users can switch the controller language between English, Spanish, French and German. Airflow can be displayed in both linear ft/min and m/sec. The ductless hoods eliminate the need for costly installation, ductwork and over-built HVAC systems associated with traditional fume hood use within the laboratory. An on-board energy meter, accessed via AirSafe TOUCH, displays the real-time and lifetime energy use of the hood. The rolled-entry design combined with AirZone baffling provides laminar flow within the cabinet, preventing eddy currents and keeping fumes or particulate from escaping the hood. Seamless, thermally welded polypropylene construction means the hood will never rust, providing years of service life. All electronics and blowers are post-filter, so they are never exposed to chemicals used in the hood. All proprietary ductless fume hoods are made in the U.S. and ship fully assembled, requiring minimal installation. Simply place on a cabinet, stand or benchtop and plug into a standard 110 or 220 V outlet.