hello gardener, look at here: http://s1293.beta.photobucket.com/user/ThaiGer1/library/farmers pictures (password: ThaiGer)None of those would work on anything bigger than a terrarium IMO.
I use 2 (cool mist) ultra sonic fogging humidifiers purchased from Walgreens/Walmart
There's a ton of different cool mist on Walgreens' website. Which one do you use?