HTFC widely used for fire control and ventilation in places such as hotels, coliseum, schools, restaurants, sinemas, halls, high-class residences and mining industries. Two-series are also fite for air-condition system and environmental purification system.

The transferred shall not contain any adhesive material, dust and frain and the concentration shall not exceed 150mg/m3, with the ermperature no higher than 80℃. When the HTFC series are used for fire control, the fanscan run more than 30 minutes continually under the condition that the air and smoke temperature is at 280℃.