AIR SCIENCE: The Purair ECO™ line of energy-saving ductless fume hoods is designed for both chemical and particulate protection over a broad range of laboratory and industrial applications. Hoods are available with a choice of controllers including the new ECOair™ touchpad control with color display interface. An optional BACnet network interface connects all cabinet control, monitoring and alarm functions to an open-source facility monitoring system. The system is based on an industry-wide, non-proprietary, ASHRAE-compliant protocol for green building management. Five standard sizes are available from 30” wide to 69” wide.