| 摘要 |
A breathing system for scuba diving practices comprising a cylinder (EE) containing compressed air or a different pre-constituted gas mixture containing oxygen, equipped with a pressure reducing and stabilizing delivery device, conveying (CC), through a flexible tube the gax mixture, to an issuing stage (FF) including a breathing mouth piece, employs: a second cylinder (DD) containing compressed oxygen; a two-inlet mixer (HH) fed with the air or different pre-constituted gas mixture from said first (EE) and oxygen from said second cylinder (DD), and having an outlet; at least a second issuing stage (GG) including a relative mouthpiece connected via a flexible tube to the outlet of said mixer (HH). |
