Low pumping head, thus lower operational cost.
+ Accepts variations in water flow without changing the distribution system
+ Easy maintenance access to vital parts.
+ Reduced drift loss due to the absence of water droplets.
+ Lower in noise due to absence of water noise.
‐ Larger foot print of the tower.
‐ Large air inlet surface makes icing difficult to control.
‐ Tendency of uneven air distribution through the infill due to the large inlet surface