UniFlow Superstructure non-metallic construction (no rust) for total chemical resistance, superior durability and long life. Interior fume chamber one piece glass smooth, all coved corners for ease of cleaning. Unitized construction reduces weight for ease of installation. 5 year warranty.    High Efficiency sash management provides for energy savings.    Energy Efficient T-5 two-tube vapor proof fluorescent light fixture, & light switch on left column, factory installed.    User Protection with sash in lowered position, fumes are kept safely away from the user.    29” Sash Height vertical moving sash for loading and unloading of fume hood.    Angled Picture Frame Opening aerodynamic face opening with air foil provides uniform air flow into the fume chamber, & thru the VaraFlow baffle system, to the exhaust collar.    Full 33” Viewing Height for ease of access & unobstructed view of fume chamber while working with tall apparatus & distillation grids.    Air Flow Monitor OSHA recommends all fume hoods be equipped with an airflow monitor.    Sash Stop located at 1/2 open to reduce airflow 50%, standard equipment.