Regulator for diving

A regulator for diving comprising a basic structure adapted to be kept in substantially air-tight condition so long as a diver is actually using it, a pressure-controllable air supply mechanism housed in said basic structure to supply said diver with air, a mouthpiece connected to said basic structure and a check valve provided within said basic structure so as to be operated between opened and closed positions, said regulator further comprising:

• said air supply mechanism having a tubular housing connected to an air supply source lying outside said basic structure, a pressure reducing valve provided within said housing and a deflector mounted on said housing and acting upon said air;
• wherein said tubular housing includes a with a first air outlet port formed in the peripheral wall and being adapted to supply said mouthpiece with the air having its pressure reduced by said pressure reducing valve, said deflector surrounding said tubular housing and configured to form a gap between said deflector and said peripheral wall, with said deflector covering said first air outlet port, said deflector further comprising:
• a tubular portion mounted to said tubular housing and having a through hole;
• and
• a hollow member surrounding the through hole and extending radially from the tubular portion and being in communication with the first air outlet port.