Vornado Duo Small Room Tower Air Circulator Fan Signature V-Flow Technology provides complete circulation of all the air in a small room Powerful motor produces higher volume of air movement and pushes air up to 50 feet Dual versatility with adjustable airflow direction in either the tower or low-profile position Whisper-quiet operation and backed by a 5-year limited warranty Built to meet U.S. voltage requirements. Certified, safety-tested, and warrantied for use only in the U.S.