RESTUBE is quickly becoming a tool of choice for aiding swimmers in distress.

There are 2 recommended options for lifeguards:

Drone rescue where a drone can be flown with a 'RESTUBE Automatic' attached and released where it deploys and automatically when it hits the water in inflates in seconds.  

The Lifeguard RESTUBE is manually deployed when needed.  Major advantages to a rescue can or lifeguard tube is ability to easily swim with it attached to your waste in heavy surf and the ability to dive down to a victim and inflate manually to assist in reaching the surface quickly.