Description
A screen and pre-filter (AK66) installed in the Model GU17P hood arrests materials or particles that enter the inlet plenum, prior to exiting the hood, and reduces contamination of the flex duct connecting it to the HEPA exhaust unit. In operation, the Drum Hood is positioned over the drum, and the HEPA filtration unit is turned on. A large poly bag is taped to the front of the drum. The drum lid retainer and drum lid (or bung) is removed and slipped into the poly bag. After inspection or sampling, the lid is slipped from the poly bag and placed back into the drum and secured.