Air bags inflate when a sensor detects a front-end crash severe enough to trigger their deployment. The sensor sends an electric signal to start a chemical reaction that inflates the air bag with harmless nitrogen gas. All this happens faster than the blink of an eye.
Air bags are activated by a sensor that detects a strong enough front-end collision. The sensor then initiates a quick chemical reaction that fills the air bag with safe nitrogen gas. This entire process happens in a split second.
When a front-end crash that is severe enough occurs, sensors detect it and send an electric signal. This signal triggers a chemical reaction that quickly inflates the airbags with nitrogen gas. This entire process happens incredibly fast.
When there is a strong enough collision in the front of a vehicle, a sensor detects it and quickly sends a signal. This signal starts a chemical reaction that fills the air bag with nitrogen gas. The air bag inflates so fast that you can't even blink before it happens.
