low-noisy fan Application 1)factory,hotel,bathing,for ventilation. 2)Daint warehouse,drying paint,gas tank dust space 3)blowing bad gas when welding shipbuilding canning,bridge. Features 1)high temperature resistance 2)oil-proof 3)damp-proof 4)solid construction for high performance and durability. It is the best choice for ventilation and cooling your workingshop Technical parameters, model no. diameter (mm)voltage (v)frequency (Hz) speed (r/min)watts (w) capacity (m³/min) Static (pa) CF35-2.828011050/602800/3300310/37048/52245/280CF35-2.8280220/24050/602800/3300310/37048/52245/280CT35-3.1531511050/602800/3300450/55068/75300/350CT35-3.15315220/24050/602800/3300450/55068/75300/350CT35-440011050/602800/3300750/95096/113400/480CT35-4400220/24050/601400/1760750/95096/113400/480CT35-550011050/601400/1760500/700130/155200/240CT35-5500220/24050/601400500/700130/155200/240CT35-5.550011050/6014001100180320CT35-5.5550220/24050/6014001100180320CT35-655011050/6014001500240350CT35-6600220/24050/6014001500240350CT35-760011050/6014002200310380CT35-7700220/24050/6014002200310380