Inexpensive humidifier Recommendations?

K

I currently have an ancient cool mist humidifier for my LOs nursery that is a pain to maintain and I'm looking to upgrade. I'm looking for something that isn't too expensive but also isnt too energy consuming, and maybe a bit easier to care for (that would be a ++).

We live in an older home (built in 1930s) with electrical work that was redone in the 80s I believe, if any of this information helps.