These are good for single rooms such as bedrooms, offices and other medium sized areas. They can feature a warm or cool mist and sometimes you can get both options in the same humidifier. They can also include digital controls, a built-in humidistat to monitor humidity levels, timer modes and other sleek features for those seeking all of the bells and whistles. If you prefer a more simplistic approach, there are units that feature easy-to-use manual controls. Overall, single room humidifiers are feature-rich and the most popular humidifiers available. If you’re looking for excellent performance and high quality, then we recommend the Air O Swiss 7144 & Air O Swiss 7135. Both are feature packed and built to last.