almost 1 year
Bought from Amazon in Jan 2012 and used it for the remainder of that winter and it worked really well for the bedroom at night. The light was a little bright but didn't bother me personally. In November I started using the humidifier again and it now doesn't work at the end of December. It makes a bad noise and no vapor comes out. Although owned for almost 1 year it was used for about 5 months and I would expect a longer useable life from the humidifier.
Rating: 2 stars