What equipment is primarily used by rescuers for elevation and lowering during a rescue?

The equipment primarily used by rescuers for elevation and lowering during a rescue is the rescue block system. This system typically consists of pulleys and ropes that enable rescuers to safely lift or lower individuals from elevated positions. The design of the rescue block system allows for mechanical advantage, which makes it easier to maneuver someone who may be injured or incapacitated.

By leveraging this equipment, rescuers can operate effectively in various conditions, ensuring both their safety and that of the person being rescued. In contrast, while climbing harnesses are essential for securing individuals while climbing, they do not provide the mechanisms necessary for elevation or lowering. First aid kits are crucial for treating injuries but do not aid in the physical act of rescue from heights. Safety gloves are important for protection during rescue operations but do not serve to elevate or lower individuals. Thus, the rescue block system is the most appropriate and effective equipment for rescuers in situations requiring elevation and lowering.