Experiments on the evaluation of protection provided by full-face masks as worn. Decision of sampling position at masks and correction of the measured aerosol concentration.:Decision of Sampling Position at Masks and Correction of the Measured Aerosol Con
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The performance of a dust respirator is affected mostly by the leakage through the interstice between mask and face. Mask man-test using NaCl aerosols has been developed to evaluate protection provided by worn masks. However, there are some problems in application of man-test to field test.The sampling method of the NaCl aerosols inside the mask was discussed. The tool for sampling operated easily was selected, and the best sampling position at the mask was decided.The correction of the measured values was also discussed. Because of NaCl aerosols deposition in the respiratory tract and sampling lines, the leakage might be underestimated. The correction coefficient was experimentally measured and discussed.
- 日本保健物理学会の論文
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