Cair™ consists of the CTT Zonal Drying™ System, and a system for humidifying sections of the aircraft's passenger and crew areas. The humidifying part of Cair™ consists of one or more humidifiers with water supply systems.
The humidifier uses the technique of evaporative humidification and has been developed in cooperation with Munters. The main component in the humidifier is a pad of glass fibre with specially designed air channels moistened via a spreader system. When dry air passes the moist surface of the pad, the water evaporates and the air is humidified while it is cooled.
By dimensioning the pad according to the airflow to be humidified, as well as controlling the supply of water and air temperature before the pad, the humidifier can operate without further regulation. Minerals and other contamination in the water are precipitated in the pad. The pad is replaced at regular intervals depending on the mineral content of the water.
The risk of bacteria spreading via the humidifier is minimal since the water evaporates during transfer to the air and thus cannot carry any bacteria. The humidifier is installed in supply ducts to the zones to be humidified. Water is taken from the aircraft's potable water system