air curtain

[AIVC, Air infiltration and ventilation glossary, 1992]:a stream of high velocity, temperature-controlled air which is directed downward across an opening. It is designed to exclude exterior draughts, and pollutants blown in from outside. It also prevents the transfer of beat Continue reading →

air diffuser

[EN 12792:2003, 13]:air terminal device usually installed in the ceiling and generally of circular, square or rectangular form and composed of divergent deflecting means and sometimes combined with vanes, perforated plates, flat plates, etc.(see also air terminal device)

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