I've tried it and it works when charging - it's just not practical when it's attached to the cable.

No !!! The automatic response from Galaxus (probably generated with AI) is rubbish. The appliance is small. The air pressure may be sufficient, but you can only dry a few square centimetres at a time. You would need hours to dry the whole car!

This is an air pump, but it can also suck up dust and dirt.

The Kica Jet Fan 2 has impressive suction power. The motor reaches up to 101,000 revolutions per minute (RPM) and generates an airflow of 20 metres per second (m/s).