One unit load of fruits usually involves 42 containers (6 containers/layer * 7 layers). About 530 kg. of average-sized mango can be treated per one unit.
The amount of fruits that can be treated at one batch depends on the number of differential pressure units housed in one treatment chamber. (In case of a chamber having 10 differential pressure unit; 530 kg * 10 units = 5300 kg/batch)
When fruit load/batch is smaller than the maximum capacity, only fruit-loaded unit may be subjected to the treatment for economy.