A tire inflator is a portable device used to inflate tires on vehicles, bicycles, and other inflatable items. It typically operates using electricity or a rechargeable battery, allowing users to quickly and easily add air to under-inflated tires. Many models come with built-in pressure gauges to ensure the correct tire pressure is achieved. These devices are essential for maintaining proper tire pressure, which can improve fuel efficiency and enhance safety on the road. Some tire inflators also include additional features, such as LED lights for nighttime use and adapters for inflating sports equipment or air mattresses.