Three ventilation systems were installed in the EA Technology Ventilation Test House: passive stack ventilation (PSV), mechanical ventilation with heat recovery (MVHR) and extract fans. Humidifiers were used to simulate occupancy and the performance of the systems monitored over the winter of 1993/94. The aim was to assess the effectiveness of different ventilation systems in controlling indoor humidity at a level that will inhibit the growth of house dust mites.
This guide combines two complementary disciplines, engineering and biology. It will provide people involved from the design to the evaluation. to the operational phase of ventilation systems with not only a better understanding of the relations hi p between operation and the appearance of conditions favor able to the development of microorganisms , but also the means for controlling their growth.
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