There are two situations in which a platinum ring fogs when it meets water. One is that the metal forms water mist when it meets water, and the other is that the surface of platinum ring is oxidized. Different situations are handled differently.

One: the water mist formed by the ring can be dried by the electric wind below.

Two: the surface of the ring is oxidized like fog. Electric wind blowing has no effect. The surface of the ring can be decorated with a wiping cloth until the oxide layer on the surface is removed and the light is restored.