Fergin G S
Am Ind Hyg Assoc J. 1984 Aug;45(8):533-7. doi: 10.1080/15298668491400223.
Studies of several types of disposable respirators were carried out in a prebake aluminum reduction plant to determine the protection factors associated with airborne particulates in the potroom environment. Seventy-five (75) individual tests of respirator performance were carried out on 60 different carbon setters during the actual carbon setting task. Acceptable performance was achieved with all types of respirators tested. There was no significant difference in respirator performance for employees with or without beards.
在一家预焙铝厂对几种一次性呼吸器进行了研究，以确定与电解车间环境中空气传播颗粒物相关的防护系数。在实际的炭块砌筑任务期间，对60名不同的炭块砌筑工人进行了75次呼吸器性能的个体测试。所有测试的呼吸器类型均实现了可接受的性能。有胡须和无胡须员工的呼吸器性能没有显著差异。
