VEVOR’s Shutter Exhaust Fan 10" AC High‑Speed is a wall‑mounted, louvered fan for utility rooms and grow spaces. The 10‑inch (254 mm) EF‑10‑AC2 version uses a 27 W AC motor at 1400 rpm to move 753 CFM (≈1,250 m³/h). Construction is fully metal, with aluminum‑alloy louvers and galvanized‑steel housing; a detachable steel mesh guard is included. Louvers close automatically when power is off to reduce backdrafts and pests. The unit measures about 325 × 325 × 185 mm, weighs 2.5 kg, and is supplied for 220 V/50 Hz markets. Intended applications include greenhouses, garages, sheds, and workshops where high airflow and simple, low‑noise operation are needed.