A comparison of respiratory function in divers breathing with a mouthpiece or a full face mask.

@article{Norfleet1987ACO,
  title={A comparison of respiratory function in divers breathing with a mouthpiece or a full face mask.},
  author={William T Norfleet and D R Hickey and Claes E. G. Lundgren},
  journal={Undersea biomedical research},
  year={1987},
  volume={14 6},
  pages={503-26}
}
A comparison was made of respiratory function in submersed divers breathing with either a mouthpiece or a full face mask while exposed to varying depths (15 and 190 fsw), exercise loads (0-175 W), and static lung loads (0 and -20 cmH2O). The two types of breathing equipment were designed to be identical in terms of functional dead space volume and resistance to gas flow. When compared with data from experiments utilizing a full face mask, use of a mouthpiece caused a modest fall in expired… CONTINUE READING