UPDATE to original reviewOriginally, I was disappointed with the product because of the blue light that glows when the machine is running. I am a very light sleeper and need a very dark room and the glow from the light was a bit too much for me. However, the machine always worked exactly as described. This humidifier is so incredibly quiet when it is running, provides a perfect amount of cool mist, is easy to clean, and has a large reservoir. I own one other cool mist humidifier and one warm mist humidifier and this one is by far the quietest and the easiest to clean. Now after owning it for a few months, I am totally satisfied with not only the product itself, but with the customer service from this small business. The company reached out to me voluntarily to say they have offered a solution for my slight disappointment. In all the years I have shopped on Amazon - and I am a very frequent shopper on here - I have NEVER had a company reach out to me with a solution that went above and beyond what was needed. I am truly blown away by their customer service and the way they stand behind the products they sell.