dbz: Let me help. I know where you're going with your question. Find just any old/newer evaporative type humidifier. The ones with a wet filter and a fan. Never mind the guts, you're likely gonna rip them out, anyway. Very first thing, check the fan voltage. If it's 110 volts, ......get the picture? Tear all the electronic shit out, put a Home Despot 110-volt dimmer switch ($10), in series with the fan, through the cord, right to your line. Plug it in, turn the switch on, set the speed you want the humidifier fan to run at and you're all set. If you still need humidity control, plug this into your InkBird, NIWA, your fav controller, or a humidistat. Guaranteed to auto-restart every time. You only need to turn the fans on or off with evaporative humidifiers. And for $10, you get a bonus: variable fan speed!.........bet this might just fill the bill for you. If you don't know electricity, have a friend that knows electricity (or an electrician) help you. After reading this, any of those can figure this out in their heads. Don't mean to sound condescending. I don't know your skills. Be safe.....