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Title: Can you sleep under an airplane engine?
Review: We bought this unit about 8 months ago, and we cannot sleep in the room with this humidifier, because of the incredibly loud noise it makes. We tried replacing the cartridge ($56 for a cartridge and new resin and UPS 2nd day mail, took them three days to ship because they couldn't compute why our billing and mailing addresses are different -- moral: buy it on Amazon). Tried cleaning it with the descaling stuff. Tried sitting it on two towels and wrapping it in another one. It still sounds like I'm sleeping in an aircraft hangar, except that this engine constantly shifts gears. I don't know if everyone else commenting here got the silent model or if we're just super sensitive, but anyway, if you're a light sleeper, keep looking.
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