A power different ventilation systems can be divided into natural ventilation and mechanical ventilation,Website:http://www.esdpousto.com, mechanical ventilation can be divided into general ventilation and local ventilation,General ventilation refers to a way of integral ventilation in the room, local exhaust ventilation means ventilation range control of hazardous substances in the formation of relatively concentrated areas, or the staff of the regular activities of ventilation in some areas, such as ventilation cabinets, universal exhaust hood, atomic absorption enclosures.The basic components of the laboratory ventilation systemVentilation terminal equipment:Including fume hoods, universal exhaust hood, atomic absorption cover, blow suction hood and so on.Ventilation pipe system:There are fan, the wind pipe, valve, muffler, exhaust gas treatment tower
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