[ISO 16814:2008, 3.33]:quality of the air perceived by the occupants and expressed by the percentage of persons that perceive the air quality as unacceptable (percent dissatisfied).

(See flow equaliser)

[AIVC, Air infiltration and ventilation glossary, 1992]:Also known as plug flow, and displacement flow, and is regarded as the most efficient form of ventilation. The ventilation air acts as a piston, which pushes the “old” air in the room in … Continue reading →