Drink more fluids and use a cool-air vaporizer or humidifier to keep the air moist. One type of evaporative humidifier makes use of just a reservoir and wick. This may require the use of a humidifier or dehumidifier depending on the institution. Humidity can be easily controlled using an ultrasonic humidifier in conjunction with a humidistat. A misting fan is similar to a humidifier. To increase humidity one may mist plants with distilled water or use a humidifier. For buildings with a forced-air furnace, a humidifier may be installed into the furnace. For longer, a built in humidifier and hygrometer is used. The stainless steel bowl is much easier to clean than typical humidifier water tanks. Conversely, a humidifier increases the humidity of a building. In March 2015, Dyson released their new Air Multiplier Humidifier. The use of a humidifier in homes, especially bedrooms, can help with these symptoms. Jim Wilbur has recorded a number of singles and an album as Humidifier. Humidifier also includes John King from another Merge Records band, Spent. Several other companies in South Korea made humidifier sterilisers with PHMG between 2001 and 2011.