The Evaporator Coils are mounted as per the specific requirement of the application. These coils without any additional water spray or humidifiers can generate the required temperature and the relative humidity as per the requirement.
Where the required RH is high, the coil generates the Humidity, and as such the size of the water moisture is very small.
They are generally 0.8 to 1 micron size, and as such hang in the air and do not settle down on the boxes and floor.