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AIRBAGS
Air bags are passive restraint devices hidden in the steering wheel or dashboard of many cars manufactured today. A passive restraint device is one that operates automatically. In contrast, a seat belt is an active restraint device and must be connected to operate.
Airbags operate in the blink of an eye and do not obstruct driver visibility or reduce driver control. Several sensors are located in the bumper and front engine compartment of a vehicle. You cannot activate an airbag by beating on the bumper with a sledge hammer. However, in a frontal crash, these sensors activate simultaneously. When activated, they expel a non-toxic nitrogen gas, which fills a nylon bag. It inflates like a balloon to provide a cushion to passengers propelled forward by the force of an impact.
A common misconception is that one does not need to wear seat belts if they have an airbag. This is not true. They should be used in conjunction with lap and shoulder belts for maximum safety. Airbags are designed for frontal crashes, and activate by the sudden impact of 12 miles per hour or more. They do not provide optimum safety in side impact, multiple impact or rollover crashes.
Although noisy
during filling, they will not damage hearing. The nitrogen gas expelled is non-toxic
and cannot cause harm. When the bag inflates, it can push a cigarette aside,
but will not usually affect someone wearing eyeglasses. When deflated, a white
powder will be seen. This is talc powder and non-toxic. Once an airbag has been
activated, it cannot be used again and must be replaced. This will cost about
$350. Many insurance companies will cover this expense.