This 18-inch tilting wall mount fan delivers 3,450 CFM (Low), 3,700 CFM (Medium), and 4,200 CFM (High). Low speed works for steady greenhouse ventilation without stressing plants. Medium helps clear dust in workshops. High moves air noticeably even 8 meters away. The three speeds are clearly distinct, not just minor variations. The blades are rust-resistant aluminum, suitable for outdoor eaves or humid greenhouses. The 110W motor runs steadily; after hours of use, it stays warm but stable with no speed drop. The steel bracket locks the tilt angle with bolts on both sides, so the head stays put once tightened. The 1.8m cord includes a fuse plug for overload protection. Certified CB, CE, ETL, with a 3-year warranty. Mounting keeps the fan off the floor, so cleaning underneath is easy. Install on workshop walls, warehouse pillars, patios, or greenhouse beams. Tilt adjusts 180° up or down and holds position through normal use. If mounting on lightweight or hollow walls, check load capacity first.