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Components of a Ducted Fume Hood

Views: 0     Author: Site Editor     Publish Time: 2022-02-23      Origin: Site

Ducted fume hoods are ventilation systems with the primary function of exhausting chemical fumes, vapors, gases, dust, mist, and aerosols. Its secondary function is to serve as a physical barrier and provide the operator protection from chemical spills, splashes, exposure, run-away reactions, and fires.

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HOW DUCTED FUME HOODS WORK 

The general airflow of a fume hood has the air enter from the face of the hood and out through the exhaust collar. An exhaust fan connected to the ducting system pulls air and unwanted substances away from the operator, out of the hood body, and exhausts them to the atmosphere.

The sash is set at the optimum configuration to maintain the recommended face velocity of 0.3 – 0.5 m/s. The airfoils and the baffles are added features that aid in the airflow.

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