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2. Whole-house fan - Wikipedia

   en.wikipedia.org/wiki/Whole-house_fan

   A whole house fan pulls air out of a building and forces it into the attic space or, in the case of homes without attics, through an opening in the roof or an outside wall. This forces air from the living areas into the attic and out through the gable and/or soffit vents, while at the same time drawing air from the outside into the living areas ...

3. Attic fan - Wikipedia

   en.wikipedia.org/wiki/Attic_fan

   An attic fan installed underneath a roof. A powered attic ventilator, or attic fan, is a ventilation fan that regulates the heat level of a building's attic by exhausting hot air. A thermostat is used to automatically turn the fan off and on, while sometimes a manual switch is used. An attic fan can be gable mounted or roof mounted. Additional ...

4. Industrial fan - Wikipedia

   en.wikipedia.org/wiki/Industrial_fan

   Industrial fan used for food processing. Industrial fans and blowers are machines whose primary function is to provide and accommodate a large flow of air or gas to various parts of a building or other structures.

5. Passive ventilation - Wikipedia

   en.wikipedia.org/wiki/Passive_ventilation

   The ventilation system of a regular earthship Dogtrot houses are designed to maximise natural ventilation. A roof turbine ventilator, colloquially known as a 'Whirly Bird' is an application of wind driven ventilation. Passive ventilation is the process of supplying air to and removing air from an indoor space without using mechanical systems.

6. Fan (machine) - Wikipedia

   en.wikipedia.org/wiki/Fan_(machine)

   The English architect Sir Christopher Wren applied an early ventilation system in the Houses of Parliament that used bellows to circulate air. Wren's design was the catalyst for much later improvement and innovation. The first rotary fan used in Europe was for mine ventilation during the 16th century, as illustrated by Georg Agricola (1494 ...

7. Scientists Used This Rooftop Garden Hack to Help Plants Grow ...

   www.aol.com/lifestyle/scientists-used-rooftop...

   Higher temperatures near the exhaust fans may have also helped increase the growth of the plants, particularly the corn. Researchers hope to create a system that can help bolster future rooftop ...