humidity

Hi all I watched a video that someone used ferrous core and rounded a coil around it and made an oscillator circuit.. and he could make mist with it. I was wondering if we can use suitable size speaker to do the same thing.

Hello everyone, I'm trying to find out the model of the two chips on a temperature/humidity sensor. As you can see the surface of the chips have partially melted. I think I found the model of one of them (the long-one with 14 pin): ICM7556. I found this link to a datasheet But I can't find...