Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Nice & quiet!

I tried a Fridgedaire model that sounded like a compressor. This one is in my bedroom and is quieter than my HEPA air filter in the quiet mode. Every once in a while, one can hear water trickling through the system but this occurs when full or on the intermittent mode. I've had this Soleus for 2 months and will keep it.