Buoyancy Control Devices (BCD)
BCD Power Inflator
Power Inflator Mouthpiece
The BCD Power Inflator
The power inflator is one of the most important BC components for you to become familiar with. While all brands have different appearances, all share a similar design and essential features.

Click an arrow to learn about each feature.

Mouthpiece
The mouthpiece is used to orally inflate the BC in the event the power inflator fails or you run out of air. To use the oral inflator, press the deflator/oral inflator button (the red button in this example) and blow into the mouthpiece. Release the button before removing the mouthpiece from your lips.