[EN 12792:2003, 149]:ventilation which employs powered air movement components in both the supply and exhaust air sides in order to achieve a design flow rate/pressure ratio.

[EN 12792:2003, 151]:air terminal unit of the following types:constant flow rate type (also referred to as series type) [EN 12792:2003, 151]:assembly within which the primary air flow rate is modulated and mixed withair induced from the surrounding atmosphere, secondary air, … Continue reading →

(See fan assisted induction terminal unit)