LKM type fire protection high-temperature smoke exhaust axial flow fan, its basic form is axial flow structure, adopts high-temperature resistance motor, and is equipped with a special motor cooling system. The product has been approved by the National Fire Equipment Supervision and Quality Inspection Center according to GA211-1999 "Fire Exhaust Fan High temperature resistance test method" High temperature resistance test, continuous operation for more than 60 minutes at a medium temperature of 300 ℃, continuous operation at a temperature of 100 ℃ for 20 hours/time without damage, can be used for ventilation and smoke exhaust.