Technical Booklet K Ventilation·Page 13
Purpose-Provided Ventilation
Ventilation supplied by devices designed into the building such as background ventilators, PSV systems, extract fans, or mechanical ventilation.
Purpose-provided ventilation – that part of the ventilation of a building provided by ventilation devices designed into the building (e.g. via background ventilators, PSV, extract fans, mechanical ventilation or air conditioning systems).
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