Vornado NGT33DC Energy Smart Tower Air Circulator Fan with Variable Speed, 33" More-powerful brushless DC motor uses up to 80% less energy and moves air up to 90 feet True variable speed via 99 unique airflow settings for precise airflow control Advanced carbon filter adsorbs common odors from pets, smoking and cooking Touch-sensitive controls, 1-12-hour auto-off timer and remote control Easy-to-clean air inlet grill and backed by a 10-year satisfaction guarantee Built to meet U.S. voltage requirements. Certified, safety-tested, and warrantied for use only in the U.S.