Across the board, Air Science® Purair ductless fume hoods provide high energy efficiency and low environmental impact. Ductless technology reduces the expense of HVAC reconditioning as filtered air is safely recirculated into the laboratory. It also offers unsurpassed installation flexibility. Purair ductless fume hoods can be installed anywhere without the added infrastructure expense of ductwork. Air Science’s Purair Advanced Ductless Fume Hood comes in seven standard sizes. The wide range of sizes and Air Science’s ability to modify models based on facility needs make it easy to install in both existing laboratories and new facilities. Purair Advanced models are available in either metal or polypropylene construction. Models are constructed with larger internal dimensions that are ideal for higher-volume applications. The Purair Advanced is designed to protect the user and the environment from hazardous vapors generated on the work surface. When combined with the optional HEPA/ULPA safety filter, the Purair Advanced also protects from particulates.