Humidity-Control Methods

Humidifiers, by definition, are devices to add moisture to the air. Thus, moisturize, to increase the density of water vapor within a given space or room. Air humidifying influence evaporation of water and always requires heat for its proper functioning. Thus, the device functions to add moisture to the air are called humidifiers, whereas the device function to remove moisture from the air are called dehumidifiers.

Humidifiers
As noted earlier, humidification is to add moisture. There are the following types of humidifiers are used in air-conditioning systems:
Spray-type air washers
Pan evaporative humidifier
Power side mirrors, humidifiers
Pneumatic humidifiers