Automatic/manual activators – inflation starts automatically within 5 seconds after coming into contact with water.
Manual activators only – inflating is done manually by firmly pulling on the knob on the outside of the casing.
Oral activation – the devise inflates by blowing into the red tube to the left of the chamber. Open the case of the device, locate the tube and blow into it. The tube is fitted with a non-return valve and protective cap.
