Read the product manual, following the installation instructions 4 step by step, iris easy io assemble dp thé product. a speed motor that produces up to 2810/8 of airflow, ensuring a natural and mild wind. The maximum house produced by this fan is 65.3 (db) Operating the fan is quiet and not disturbing. The metal fan is built to last. It has an excellent built quality which consists of a chrome stand, with solid construction, and thermal protection to prevent motor overheat.