laboratory ventilation system is one of the systems with large scale and widespread hazards in the laboratory planning and construction process. Whether the exhaust system is sound or not will have a serious impact on the laboratory environment, the health of experimental staff, and the operation and maintenance of experimental instruments in a timely manner.

        Ventilation method:

       1. Partial natural ventilation

        partial ventilation is to discharge harmful substances to the nearest location after they are produced. It can discharge a large number of harmful substances with a small exhaust volume, saves energy and has good effects. It can improve the current laboratory standards, is economical and feasible.

       2. Natural ventilation throughout the house

        ventilates the room, uses the fresh air sent into the room to dilute the concentration of harmful substances in the room to within the allowable range of the quality standards, and at the same time, discharges indoor air pollution gases into the outdoor air in a timely manner or after cleaning.
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