| 摘要 |
A ceiling-mounted ventilation system assembly, where ventilation air from said ventilation system is directed down towards a working area, and where air is supplied to the ventilation system from indoor air (RL) and/or from external ventilation equipment (SL). The ventilation system is divided into at least two sections each with separate air (1; 2; 3; 4), where at least one of the sections (1; 2) is designed and positioned so that the airflow therefrom will essentially strike a work table (78) in the working area, whilst the other section or sections (3; 4) are designed and positioned in such a way that the airflow therefrom will strike areas outside the work table, and where said sections are each independently equipped with means (5; 6; 7, 8; 57; 58; 59) to control the air volume passing through the section, means (29, 30; 31; 32, 33; 34; 35, 36; 81, 82) for controlling the temperature of the air issuing from the section, and means (37, 38; 41) for ensuring a specific purity of the air which is emitted such as bioconditioning means and microfilters.
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