The Weatherproof louvre is designed for intake and exhaust ventilation applications.

防风雨百叶窗设计用于进排气通风应用.

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ENGINEERING CONTROLS : Use local exhaust ventilation to control dust.

工程控制: 使用当地除尘通风设施.

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Ventilation: positive downdraft exhaust ventilation should be provided to maintain vapor concentration below TLV.

通风: 为了使气体聚集程度维持在阀极限值之下,应提供通畅的向下棋流排气通风设施.

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Use with adequate exhaust ventilation to draw dust away from workers'breathing zones.

使用适当的排气通风得出离尘工人的呼吸区.

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