A new lightweight portable oxygen delivery system could improve casualty survival rates for frontline UK soldiers and ...

A rebreather is a portable breathing device that absorbs the carbon dioxide of a user’s exhaled breath, essentially recycling unused oxygen. Rebreathers have a significant advantage ...

Firefighters and rescuers entered the smoke-filled tunnel while using rebreathers, portable breathing devices that absorb carbon dioxide and recycle unused oxygen. The "victims"—around two dozen ...