Which piece of equipment is essential for lifeguards during rescues?

The rescue tube is an essential piece of equipment for lifeguards during rescues because it provides necessary buoyancy and flotation support for both the lifeguard and the distressed swimmer. When a lifeguard uses a rescue tube, they can effectively assist someone in the water by extending the tube for the person to hold onto, allowing the lifeguard to tow them back to safety. This tube enhances the lifeguard's ability to perform rescues without directly entering the water or putting themselves at risk.

In addition to its buoyancy, the rescue tube is designed to be lightweight and easy to maneuver, making it a practical choice for maintaining control during a rescue. It also allows for more effective and safer rescues, especially in crowded or turbulent water conditions, where direct physical contact may be challenging.

Other equipment like sunscreen, a whistle, and a first aid kit serve important roles in a lifeguard's duties and overall safety, but they do not provide the same direct support in rescue situations as the rescue tube does. The tube is specifically designed for use in emergency situations, highlighting its critical importance in a lifeguard's rescue toolkit.