A non-rebreather mask is a special medical device that helps provide you with oxygen in emergencies. These masks help people who can still breathe on their own but need a lot of extra oxygen.

A non-rebreather mask is a medical device that helps deliver oxygen in emergency situations. It consists of a face mask connected to a reservoir bag that’s filled with a high concentration of oxygen.

Rebreathers could make an ocean explorer’s ultimate fantasies come true. Recirculating the same air again and again might sound like science fiction, but compared against traditional scuba equipment, ...

MELKSHAM, U.K.—Avon Protection P.L.C. has been selected by the German navy to supply its Multi-Role Rebreather for military diving operations. The "multi-million euro" order includes the supply of the ...

Yves Lefevre, cinematographer, and Matt Ferraro, lighting technician, dive with closed-circuit rebreathers, allowing them to swim backwards to film divers swimming over the Giant Table Coral without ...

Technology is opening all sorts of places to human exploration, including areas of the sea previously too remote to spend much time lingering in. I had occasion to reflect on whether this is a good or ...