Auto Inflators are a type of automotive accessory that help keep tires inflated to the manufacturer's recommended pressure level. They are generally classified as tire inflation products and fall under the broader category of automotive maintenance and repair equipment.

Auto Inflators can be further subcategorized based on their power source, with some models being powered by a vehicle's 12V outlet or cigarette lighter, while others may require an external power source. Additionally, Auto Inflators can vary in terms of their features and functionality, including different pressure ranges, automatic shut-off capabilities, and digital displays.