Negative Positive
Title: seems to be really hit or miss, can't figure it out
Review: I live in dry desert country and this humidifier is a godsend on dry days in the house. However, we bought it for overnight use and either it churns out copious amounts of steam and runs out within 3-4 hours, rendering it useless for an 8-hour overnight stretch, or it just sort of puffs pathetically, releasing tiny amount of steam throughout the night to where you don't even feel its effects. I've tried different additives (salt, baking soda) to figure out if it's a hard water/pH issue or whatever, and I can't figure it out. It's completely inconsistent, so we don't use it all that much. If I could go back I'd skip this one and get a 2-gallon humidifier instead in the hopes that it would at least get through the night.
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