CO2 and O2 concentrations in integral motorcycle helmets.

@article{Brhwiler2005CO2AO,
  title={CO2 and O2 concentrations in integral motorcycle helmets.},
  author={Paul A. Br{\"u}hwiler and R St{\"a}mpfli and Robert Huber and Max Camenzind},
  journal={Applied ergonomics},
  year={2005},
  volume={36 5},
  pages={625-33}
}
Inhaling air which contains excess CO2 and/or is oxygen-deficient is known to present health risks and to diminish human cognitive abilities. The average CO2 concentrations relevant to a motorcyclist wearing an integral helmet were measured 20 years ago and found to be alarmingly large. The purpose of the present study was to examine gas concentrations typically inhaled by a motorcyclist. Average concentrations of CO2 near the upper lip for persons (n = 4) wearing integral motorcycle helmets… CONTINUE READING