The EnergySilence 515 MaxFlow Black floor fan offers 45W power for efficient cooling. It has 5 aerodynamic design fans for maximum performance and smooth air flow. The adjustable timer allows programming up to 1 hour, while the height is adjustable up to 135cm. for table or floor use. The ability to rotate ensures greater coverage of the space. With a safety mesh that prevents access to the impellers and a solid base for safety and stability.