Easy to clean filters: arc flow permanent filters are dishwasher-safe and extremely durable. no need to replace these filters, simply drop them in the dishwasher for easy maintenance and cost savings.range hood can be used ductless with optional carbon filter kit (purchase part # cfk5) Contemporary modern design: commercial pro-style canopy range hood is both elegant and powerful adding sophistication to your kitchen. made of premium 430 grade, 18-gauge thickness stainless steel. 7.5" round top vent Powerful yet quiet: 900 cfm with backlit touchscreen, 4 speed, twin centrifugal motors. cosmo’s under cabinet range-hood quickly ventilates your kitchen without the loudness and sounds of competing range hoods Powerful energy efficient lights: the energy efficient, 1. 5-watt leds are long lasting and provide bright high lumen led lighting for better visibility at night 5 year limited : our customer support team is based proudly in the usa. product dimensions: 29. 5 x 22 x 10 inches electrical requirements: 120v/60hz, 3 prong plug. round duct 7. 5 inch