HEATING FILTER COATED WITH AN INSULATION LAYER

摘要

The present invention relates to a heating filter coated with an insulation layer to prevent insulation problems such as a short circuit by coating an insulation film on a conductive film formed on the surface of a filter. According to the present invention, the heating filter coated with an insulation layer comprises: the conductive film made of a conductive material, and formed on the surface of the filter; an electrode installed in the conductive film and connected to an external power supply to apply a potential difference to the conductive film. The conductive film generates joule heat when applied with a current.