本系列风机具有高效率、噪音低、压力曲线平稳、使用范围广等特点，主要用于厂矿企业、体育馆、歌剧院、地下室、大小宾馆、酒楼、商场及大型 建筑的室内通风换气，降温除尘等用途，也可以与其他各类机械设备配套作气体循环使用。输送的杰作为空气和其他不自燃、对人体无害、无腐蚀性气体;B4-72采用防爆电动机，可作为易燃挥发气体的通风换气用，气体温度≤80℃，气体内部允许有粘性物质，尘土及固体杂质<150mg/m³

This series of fans with high efficiency, low noise, smoothpressure curve, the use of a wide range of features, mainly forindoor ventilation of factories and mines,stadiums, operahouses, basements, and size of hotels, restaurants, shoppingmalls and large buildings, cooling of dustpurposes, can also besupporting other types of machinery and equipment used for gascirculation. Transportation outstanding as air and other non-spontaneous combustion,harmful to humans, non-corrosivegas;B4-72 Explosion-proof motors can be used as for theventilation of flammable vapors, the gas temperature< 80°Cgas internal allowed viscous substances.dust and solidimpurities < 150mg/m3.