| 摘要 |
A Y-shaped air diverter box is utilized to permit the replacement of a malfunctioning air filtration unit which is being utilized in a contaminated work site ara. The Y-shaped air box is utilized in such a manner so as to permit the purging and cleaning of the air conduit which normally connects the air filtration unit to an air exhaust as well as providing a means for cleaning the exhaust side of the new air filtration unit which is being placed into service.
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