Foereland Solveig, Robertsen Oeystein, Hegseth Marit Noest
Department of Occupational Medicine, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway.
Department of Geoscience and Petroleum, NTNU, Norwegian University of Science and Technology, Trondheim, Norway.
Saf Health Work. 2019 Sep;10(3):370-376. doi: 10.1016/j.shaw.2019.06.004. Epub 2019 Jun 19.
Respirator fit testing is a method to assess if the respirator provides an adequate face seal for the worker.
Workers from four Norwegian smelters were invited to participate in the study, and 701 respirator fit tests were performed on 127 workers. Fourteen respirator models were included: one FFABE1P3 and 11 FFP3 respirator models produced in one size and two silicone half masks with P3 filters available in three sizes. The workers performed a quantitative fit test according to Health and Safety Executive 282/28 with 5-6 different respirator models, and they rated the respirators based on comfort. Predictors of overall fit factors were explored.
The pass rate for all fit tests was 62%, 56% for women, and 63% for men. The silicone respirators had the highest percentage of passed tests (92-100%). The pass rate for the FFP3 models varied from 19-89%, whereas the FFABE1P3 respirator had a pass rate of 36%. Five workers did not pass with any respirators, and 14 passed with all the respirators tested. Only 63% passed the test with the respirator they normally used. The mean comfort score on the scale from 1 to 5 was 3.2. The respirator model was the strongest predictor of the overall fit factor. The other predictors (age, sex, and comfort score) did not improve the fit of the model.
There were large differences in how well the different respirator models fitted the Norwegian smelter workers. The results can be useful when choosing which respirators to include in respirator fit testing programs in similar populations.
呼吸器适合性测试是一种评估呼吸器是否能为工人提供足够面部密封的方法。
邀请了来自挪威四家冶炼厂的工人参与该研究，对127名工人进行了701次呼吸器适合性测试。共纳入了14种呼吸器型号：一种FFABE1P3和11种FFP3呼吸器型号，均为单一尺寸，以及两种带P3过滤器的硅胶半面罩，有三种尺寸可供选择。工人们根据健康与安全执行局282/28标准，使用5 - 6种不同的呼吸器型号进行了定量适合性测试，并根据舒适度对呼吸器进行了评分。探讨了总体适合因数的预测因素。
所有适合性测试的通过率为62%，女性为56%，男性为63%。硅胶呼吸器的测试通过率最高（92 - 100%）。FFP3型号的通过率在19 - 89%之间，而FFABE1P3呼吸器的通过率为36%。有5名工人使用任何呼吸器都未通过测试，14名工人使用所有测试的呼吸器均通过。只有63%的工人使用其通常使用的呼吸器通过了测试。从1到5的舒适度评分平均为3.2。呼吸器型号是总体适合因数的最强预测因素。其他预测因素（年龄、性别和舒适度评分）并未改善模型的拟合度。
不同呼吸器型号对挪威冶炼厂工人的适配程度存在很大差异。这些结果对于在类似人群中选择纳入呼吸器适合性测试项目的呼吸器时可能会有所帮助。
