A Comparative Evaluation of the Standard U.S. Navy Shallow Water Diver's Mask and the Commercial P and E Manufacturing Company's Mask,

摘要

A new commercial shallow water diver's mask is evaluated in comparison with the older U.S.N. Standard Shallow Water Diver's Mask ('Jack Brown'). The new mask,manufactured by P and E Manufacturing Co.,is considered a good shallow water mask but is in no way superior. The standard mask is preferred. Several deficiencies in the P and E mask are noted. (Author)