Instruct: Classify a review as either positive or negative.
Query: Great humidifier, poor humidistat

I've purchased this humidifier in large because of its built-in humidistat. I thought, I'll just set it to a particular humidity and it will turn on/off as needed to maintain the desired humidity in the room. Big mistake. To think that a $50 humidifier would have a humidistat of any accuracy I suppose was a fault of my own. I have a precision hygrometer hung on the wall in my bedroom which normally registers relative humidity by up to 20-30% higher than what this humidifier registers. The unit's readout of current humidity will jump from 20% to 46% in no time. Highly inaccurate.If you are purchasing this solely as a humidifier, then know that it's quiet and reliable. However, its humidistat function is pure non sense. Doesn't work, highly inaccurate to a point of being pointless.