The Tongue Sucker’s approach to the problem is simple and logical and may be performed by anyone.

The bulb is squeezed, the tube placed over the tongue, and released. This action creates a vacuum, which sucks onto the tip of the tongue pulling the rear off the throat and into the carefully designed self-sealing chamber.

1) Squeeze the bulb and locate over tongue
2) Release bulb

In a first aid situation the rescuer may start to perform compression only CPR once the oropharynx is opened. This is a simplified version of CPR involving administering compressions without intermittent ventilation.
The benefit of the Tongue Sucker is that as the airway is now open during compressions, passive chest recoil (the movement of the chest in reaction to compressions) may be adequate to provide sufficient air exchange.