1.The casing adopts high-grade plastic material, with high efficient and mixed-flow ABS impeller. 2. Suitable for the places with the requirements of low noise and high static pressure in the ceiling duct. 3. Good heat dissipation performance aluminum cover combine with sealed ball bearing motor, long life with low energy consumption. 4. Equip with two speed control of high and low speed. 5. Equip the removable fastener between fan casting and outer/inlet, maintenance and cleaning are available. 6. Operating temperature range - 20?C ? 50?C 7. Insulation Class B 8. Enclosure Class IP44
