Pneumatic springs are devices that use compressed air to provide support and cushioning. They work by trapping air in a sealed chamber, which compresses when weight is applied. This compression creates a force that can absorb shocks and vibrations, making them useful in various applications, such as in automobiles and industrial machinery. These springs are often preferred for their lightweight design and adjustable stiffness. By changing the air pressure within the chamber, users can customize the spring's performance to suit specific needs. Pneumatic springs are commonly found in suspension systems and seat designs for added comfort and stability.