英文:A dust plug, as the name suggests, is a device designed to prevent dust and other minute particles from entering the openings of objects, commonly found in electronic and mechanical devices. They are usually small, insertable accessories, available in various shapes and sizes to fit different sockets. On devices like smartphones, headphones, and cameras, dust plugs protect charging ports, audio jacks, etc., from dust ingress, thereby extending the lifespan of the equipment. Using dust plugs is a simple yet effective method of maintenance.