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2. Whole-house fan - Wikipedia

   en.wikipedia.org/wiki/Whole-house_fan

   Monticello had a large central hall and aligned windows designed to allow a cooling air-current to pass through the house, with an octagonal cupola at the top of the house drawing hot air up and out through natural convection. [2] Whole house fans were the only method for cooling homes in the early 1900s.

3. CaptiveAire Systems - Wikipedia

   en.wikipedia.org/wiki/CaptiveAire_Systems

   CaptiveAire Systems is a privately held manufacturer of commercial kitchen ventilation systems in the U.S. and a manufacturer of HVAC equipment. [1] The company, founded by Robert L. Luddy in 1976, is headquartered in Raleigh, North Carolina.

4. Infiltration (HVAC) - Wikipedia

   en.wikipedia.org/wiki/Infiltration_(HVAC)

   In many smaller buildings, 'forced' or 'mechanical' ventilation is not used to introduce ventilation air. Instead, natural ventilation, via openable windows and other openings, exhaust fans, and infiltration are used to provide ventilation air. Typically, at least one-third air change per hour is considered the minimum.

5. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   Ventilation on the downdraught system, by impulsion, or the 'plenum' principle, applied to schoolrooms (1899) Natural ventilation is the ventilation of a building with outside air without using fans or other mechanical systems. It can be via operable windows, louvers, or trickle vents when spaces are small and the architecture permits.

6. Air door - Wikipedia

   en.wikipedia.org/wiki/Air_door

   A typical commercial air curtain enclosure. In North America, the more commonly-used term for an air door is "air curtain". The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) defines an air door as follows: "In its simplest application, an air curtain is a continuous broad stream of air circulated across a doorway of a conditioned space.

7. Ventilation (architecture) - Wikipedia

   en.wikipedia.org/wiki/Ventilation_(architecture)

   Natural ventilation is the intentional passive flow of outdoor air into a building through planned openings (such as louvers, doors, and windows). Natural ventilation does not require mechanical systems to move outdoor air. Instead, it relies entirely on passive physical phenomena, such as wind pressure, or the stack effect. Natural ventilation ...