Made with lightweight and durable aluminum blades. Safe to use in places with high frequency interference or oil smoke. It can be turned up and down to 90°, so you can blow air from the ceiling, attic, and septic tank. Product Size (W x D x H): 29.1 x 11.2 x 30.3 inches (735 x 285 x 770 mm). Product Weight: 26.5 lbs (12 kg).