Autoinflation

Autoinflation is the process of inflation that occurs without the need for continuous external input, usually achieved through stored energy, internal pressure, chemical gas generation, or the body's own activity. The term is used in multiple fields with different specifics, and its precise meaning depends on the context.

In medical technology and physiology, autoinflation commonly refers to devices that inflate themselves without ongoing manual input, and to situations where inflation occurs as a result of the body's own breathing mechanics or airway pressure. It is contrasted with actively supplied inflation from an external pump or compressor. In respiratory therapy, such devices are designed to maintain airway patency or deliver a therapeutic pressure while minimizing external energy requirements.

In engineering and consumer products, autoinflation describes self-inflating devices that rely on stored energy, such as self-inflating life jackets or cushions that deploy via a built-in mechanism or gas cartridge. These systems are designed to provide rapid inflation without the need for external gas supply, while including safety features to limit over-inflation.

In economics, autoinflation is a term used by some to describe inflation driven by domestic factors—such as wage-price dynamics or built-in expectations—instead of external price shocks. The usage is not universal and is context-dependent.

Safety, standards, and measurement practices address autoinflation mechanisms to ensure appropriate inflation levels and prevent injury or structural failure.