I bought this humidifier a while back and loved it at first. In the beginning it worked great and my only complaint was that it was hard to find replacement filters. However, I recently trashed the thing after it woke my up one night making a loud buzzing noise and throwing sparks! It also gave off that burnt electrical smell. I checked out Vicks' and KAZ's websites for a recall, but there isn't one for this model. There's no way I'll even consider buying a replacement just like this one! I'll find a different brand. I value my life and don't want to burn down my house, so this sucker went straight to the trash where it belongs!