Fume Hood Filters Replacement

The U. S. Geological Survey (USGS) Great Lakes Science Center (GLSC) headquarters facility, located in Ann Arbor, Michigan, includes laboratories that rely on fume hoods to prevent hazardous chemical exposures to its employees. A major redesign and renovation of the GLSC Analytical Laboratories took place between 2012 and 2015. As part of this renovation, the existing vented fume hoods were replaced by five (5) Green Solution filtered fume hoods and one (1) vented fume hood. Each Green Solution fume hood contains eight (8) filters (divided between a lower, or primary, level and an upper, or secondary, level of filters) and one (1) acid sensor that need to be replaced periodically. For purposes of redundancy and safety, after the lower level of filters have passed their maximum use date (which is calculated by the filter manufacturer based on the types of chemicals used in the hood, the quantity and frequency used, etc), the upper level of filters continue filtering the air that is passed through them. The hoods have surpassed the timeframe for replacement of the lower, primary level filters and the sensors have reached the end of their functional lifespan. As such, the GLSC has need for filter and sensor replacement for the four (4) filtered fume hoods that are currently being used (i.e., 16 filters and 4 acid sensors). Additionally, one of the fume hoods did not pass its annual face velocity test and requires assessment and potential repair or part(s) replacement. In addition to replacing the expired filters and acid sensor in each hood, the Contractor will also be responsible for hauling away and disposing of all waste generated during this task and conducting air face velocity testing on the fume hoods identified above following their maintenance. The Contractor will also assess hood 157-2 to determine the cause of its low flow values and provide an estimate for any additional parts or labor that may be needed.

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Heating, Ventilating, and Air Conditioning (HVAC), Instrumentation and Control for HVAC, HVAC Air Distribution, Central HVAC Equipment.