4-79型离心式通风机可输送空气和其它不自燃的，对人体无害的，对钢材无腐蚀性的气体。气体内不允许有粘性物，所含尘土及硬质颗粒物不大于150mg/m3。气体温度不得超过80℃。该风机具有良好的气动性能，叶轮、带轮均经严格的静、动平衡校正，具有运转平稳、振动小、效率高等特点。广泛适用于工矿企业、大型建筑物，宾馆、酒楼室内通风换气排烟。
ModeI 4-79A centrifugal ventilators can air and other non-hypergolic gas which are not harmful to the human body and wilI not cor．rode steeI materials．The adhesive materials are not allowed in the gas．Its con-taining cust and hard particles should not exceed 150mg/m³。gas temperature not exceed 80℃．lt has sound pnoumatic，performance．The paddle．wheeI．pulley have have been implemented with static．dynamic balancing correction．There-fore it has features such as balanced running，little vibration，high efficiency long Iife etc．1t is widely applicable for the indoor ventilation，air-exchange，exhaust in the mining and industrial enterprises，large—size architectures，guesthouses，res-taurants etc．