What does a pneumatic lifting bag operate on?

A pneumatic lifting bag operates on compressed air, which is fundamental to its function. When compressed air is introduced into the bag, it fills the space inside, causing the bag to expand and lift the load placed upon it. This lifting mechanism relies on the principles of physics, specifically the relationship between pressure and volume described by Boyle's Law. As the pressure of the compressed air inside the bag increases, the bag expands and generates a lifting force.

The operation of pneumatic bags is favorable in rescue scenarios, as they are lightweight, portable, and can be easily deployed in various circumstances, making them effective for lifting heavy objects without the risk of mechanical failure that may accompany other lifting methods. In contrast, manual leverage, hydraulic pressure, and electrical power represent alternative methods of generating force but do not pertain to the specific operation of a pneumatic lifting bag.