ANTI-FOGGING SYSTEM AND CONTROL METHOD

An anti-fogging system according to the present disclosure includes an anti-fogging device that suppresses fogging of glass of a vehicle, and a control device that controls the anti-fogging device. The control device is configured to execute a process of operating an anti-fogging device when a predetermined condition is satisfied, a process of acquiring information on a conversation situation including at least whether or not a vehicle occupant is talking, and a process of changing a predetermined condition based on information on a conversation situation.