Fogger
I have a few foggers that I used to use all the time. They have amazing visual effects and raise the humidity by 100%. However, they need to be placed in water that is about 3-5 inches deep, depending on the size of the fogger. They defuse about 1 cup of water an hour and if you forget about it and the water gets down past the sensor it will burn the membrane out very quick. When the fogger is on it splashes water everywhere, so it makes quite a mess if not contained properly. I used to use them all the time to raise humidity and put some moisture in the cage, but I then decided to go out and buy a misting system. It does all of the above way better and is way less maintenance. When the mist system cycle is on you can feel the humidity rising in the room immediately. I would recommend a mister over foggers any day.