For those of you who want our bottom line recommendations on humidifiers:

We like the Air O Swiss 7144 as the Best-in-Class combination cool/warm mist humidifier because of its quiet operation.

The Air O Swiss Air Washer Humidifier is a great combination cool-mist humidifier and air cleaner which humidifies a large room quickly.

The Germ Guardian humidifier is our top value cool mist humidifier that is easy to clean.