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        風管,是用于空氣輸送和分布的管道系統。

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        有復合風管和無機風管兩種。風管可按截面形狀和材質分類。風管制作不銹鋼風管制作是在咬口縫、鉚釘縫、法蘭翻邊四角等縫隙處涂上密封膠(如中性玻璃膠)。涂密封膠前應清除表面塵土和油污。按截面形狀,風管可分為圓形風管,矩形風管,扁圓風管等多種,其中圓形風管阻力最小但高度尺寸最大,制作復雜。所以應用以矩形風管為主。按材質,風管可分為金屬風管,復合風管,高分子風管。

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