The efficiency of respirator filters in a coke oven atmosphere

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Abstract
Several types of commercially available respirator filter/sorbent combinations were tested in a coke oven environment. The percent penetration of benzene soluble particulate and the carcinogen benzo(a)pyrene through these filters was determined and was generally less than 10%. Degradation of filtering efficiency was noted with some types of filters. The use of a sorbent cartridge in conjunction with a covering filter did not significantly change penetration of the contaminants which were measured. [This study is relevant to human occupational exposure.].

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