Product review (1 stars): Waste of money.
I used this product in my hotel room for 3 nights straight in my hotel room due to dry winter conditions. When you plug it in, it emits a light blue light which basically lights up the whole room and there is no way to turn it off. The unit itself is very quiet but after 2 weeks of use (6 nights), it stopped working. The filter stick provided looks like it burned and the top part where water comes out is all clogged with no way to clean it. Plus, the top is supposed to screw on to bottles of water. I never did find a bottle of water that the top actually fit on too. Even the small bottle provided didn't fit.  This product is a waste of money and I'll be returning it.