Air Science USA's Purair 5 Ductless Fume Hood eliminates harmful fumes and particles in your science lab. The ductless design means these fume hood doesn't require installation – simply place the compact unit on a tabletop, cart or over a sink and plug it into an electrical outlet. This affordable fume hoods operates quietly and re-circulates filtered air back into your lab, ensuring energy efficient operation. Features low air flow alarm and built-in lighting to illuminate work surfaces. Filter is easy to install, and epoxy-coated steel is easy to clean. Opt for one of three filters or a spill tray. Meets OSHA, ANSI and all relevant international standards. Available in three sizes.