Cooler and fresher. All day. All summer.
During the warmer months, using the Solatube Whole House Fan not only cools the air in your house, but also the structure and contents. This helps cool the home and attic by up to 30 degrees, and sometimes more, allowing them to stay much cooler the following day, the principle of Thermal Mass Cooling applies. So overall costs to keep the home cool and dramatically reduced, especially as compared to air conditioning.