Heres a link to a page about 100% oxygen masks. Theres a link to a USAF site about how to make a adapter to use standard O2
bottles with the better aviators masks. These aviator type are more expensive but provide a better seal and higher 02 levels for 02 breathing on the way to a chamber.
http://www.geocities.com/lapswimr/oxygenmask.html
bottles with the better aviators masks. These aviator type are more expensive but provide a better seal and higher 02 levels for 02 breathing on the way to a chamber.
http://www.geocities.com/lapswimr/oxygenmask.html