smaco S300 Plus Guia Del Usuario página 6

03
OPERATION PRINCIPLE
3.1
When the diver bites the mouthpiece and inhales, the pressure in the cavity
decreases to prompt the release valve to open downward so that the air flows
out into the oral cavity through the mouthpiece;
3.2
When the diver bites the mouthpiece and exhales, the exhaled gas flows into
the cavity to increase the pressure in the cavity, so as to prompt the one-way
silicone gasket in the valve at the bottom of the cylinder to open, and the gas
is discharged to the outside through the two exhaust holes.
04
②
④
③
3.1
①
3.2