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<p>of maintaining good indoor air quality, it may not be satisfactory alone. A clear understanding of both indoor and outdoor air quality parameters is needed to improve the performance of ventilation in terms of occupant health and energy. In scenarios where outdoor <a href="page.php?w=air_pollution">pollution</a> would deteriorate indoor air quality, other treatment devices such as <a href="page.php?w=Air_filtration">filtration</a> may also be necessary. In <a href="page.php?w=kitchen_ventilation">kitchen ventilation</a> systems, or for laboratory</p><p>
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