Title: worked well for 2 months then got VERY noisy
Review: Like several other reviews here, I experienced a problem with the fan. The unit worked like a charm for a couple of months, was silent, very easy to clean and refill. But then, the fan started rattling. I didn't keep the box due to a move so I can't do anything as far as a return. I opened the unit to see how I could quiet the fan but the mechanism itself is rattling. Basically, it is now useless because at night, all you can hear is something that sounds like a loose rattle. In fact it's so loud, I am sure the neighbor can hear something through the wall.
Is this product review negative?