thankswe use aircare Evaporative Humidifier For 3,600 Sq. Ft. 5.7-Gal. sold by homedepot, about same room size like yours, so far so good
thanksI use an Aircare at home. Mine is a big bucket with 4 wicks. It works great in a split level 1500sq ft home. It doesn't have a fill bottle, you just pour water in the top. It's a lot easier than the units with bottles.