air diffusing ceiling

[EN 12792:2003, 15]:modular air terminal device designed to diffuse air to the treated space from a pressurized plenum through holes or slots in the ceiling surface or the supporting framework.(see also air terminal device)

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air diffusion

[EN 12792:2003, 14]:distribution of the air in a space, called the treated space, in a manner to satisfy certain specified conditions such as air change rate, pressure, cleanliness, temperature, humidity, air velocity and noise level, in a specified zone within Continue reading →

air distribution

[AIVC, Air infiltration and ventilation glossary, 1992]:the delivery of outdoor or conditioned air to various spaces in a building, usually by mechanical means [EN 12792:2003, 16]:transportation of a specified air flow to or from the treated space generally by means Continue reading →