Title: Great Humidifier but our first one had faulty switch.
Review: We noticed the difference in air quality, my boyfriend's snoring, my nose bleeds and dry skin right away. The tank is large and lasts for several days depending what level you run it on. Haven't noticed any of the "white dust" that I read about in some reviews, which supposedly is produced because there is no filter. I personally love that there is no filter to clean or replace.HOWEVER, couldn't give this 5 stars because after about 6 weeks of use the on/off switch would no longer remained pushed in so it wouldn't run. I had to send back to Amazon, who was fabulously helpful and got a new one to me right away.
Is this product review negative?