Model 3723. Innovative wind ring system for 30% more air velocity. Included a patented fused safety plug. Quiet. Energy efficient. Durable steel body. Our American employees thank you for your purchase. Why buy a fan? Create a wind chill. Circulate air conditioning. Bring fresh air in. Dispel stale air & odors. Use for only pennies a day. Get comfortable! ETL Intertek listed. Crafted with pride in the USA of imported and domestic parts.