Vertical Hanging Laminar (VHL) unit is a containment equipment module utilizing a zoned unidirectional (laminar) downflow supply of air to positively pressurize and purge the working environment from potential contaminants; thereby providing enhanced aseptic work zones for maintaining process integrity and/or product protection. THERMADYNE Vertical Hanging laminar (VHL) workstaions is must for providing ultra clean work area for semi conductor manufacturing, pharmaceutical filling and capping , electronic & mechanical precision assemblies, analytical test labs etc. manufactured to international standards, these units incorporate D.O.P tetsed & point to point scanned Hepa filters .