I am working in a supermarket which is located in the basement area of the mall. We've been experiencing blackout this past few days but we had our generator working. The problem is, the AHU (air handling unit) in our supermarket will only run its blower during blackout. Since the supermarket is located in the basement area, we could still experience heat and lack of cold air. Is there any way of improving the air flow in our supermarket? any techniques like using blocks of ice and place it near the AHU in order for the AHU to absorb cold air from the ice something like that?