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 add air to under-inflated tires. Many models come with built-in pressure gauges to ensure the correct tire pressure is achieved. Using a tire inflator is straightforward. Users connect the inflator's nozzle to the tire valve, turn on the device, and monitor the pressure until it reaches the desired level. Regularly checking and maintaining proper tire pressure can enhance vehicle performance and safety.