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Exposure to environmental tobacco smoke in sixteen cities in the United States as determined by personal breathing zone air sampling. Monitoring for exposure from welding fumes is accomplished by drawing air from a worker's breathing zone through a filter. Farr says its GoldSeries booth encloses the work environment on three sides and creates a cross draft, pulling dust away from the breathing zone to provide high efficiency removal of nuisance dust, fumes and other particles. |
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