Auto Bypass Fume Hood is designed to offer constant air flow across the work surface. This is available with an internal opening situated above the sash. In addition to this, it allows constant air volume for changing the hoods face velocity. Its exhaust system works automatically in cooperation with the hood sash. Its bypass adjustment is developed in such a way that sash is closed and opened for creating a relatively constant air volume regardless of sash position. It is well-equipped with full view sash that ensures to provide a clear view of the interior part of the hood.