VEVOR’s Shutter Exhaust Fan 14'' EC with Temperature & Humidity Controller is a wall‑mounted louvered fan for active ventilation of greenhouses, garages, sheds, and small workshops. The 35.6 cm fan uses an energy‑efficient EC motor and an intelligent controller that provides 10-speed adjustment, temperature and humidity triggers, timer, and alarm modes. Airflow is voltage dependent: up to 1513 CFM on 120 V (about 2571 m³/h) or 1024 CFM on 220 V. The unit arrives preassembled with a 1.8 m power cord and mounting hardware for plug‑and‑play installation. Construction features a powder‑coated steel frame with aluminum alloy blades and automatic gravity shutters. Overall dimensions are about 17.1 × 17.1 × 7.5 inches, and the US version is ETL listed.