Stadler Form Q Fan Metal Select from three power levels The protective grill on the back can be removed for easy cleaning of the fan blades Circulates up to 85,000 cubic feet of air in spaces 430 square feet in size Rated power: 40 Watts Dimensions: 16.9 x 5.9 x 14.1 inches. Room size: up to 40 sq m. Sound level: 41  58 dB(A)