Evaluation and Development of the Leakage Testing System for Exhalation Valve

碩士 === 國立臺灣大學 === 職業醫學與工業衛生研究所 === 105 === An ideal tight-fitting full mask with exhalation valve has features of low impedance during exhalation and comfort when worn for a long period of time. The valve normally fits tightly to the base by vacuum created during inhalation; however, leakage could o...

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Bibliographic Details
Main Authors: Ning Yu, 余寧
Other Authors: Chih-Chieh Chen
Format: Others
Language:zh-TW
Published: 2017
Online Access:http://ndltd.ncl.edu.tw/handle/97jucd