30' Sonya Under Cabinet Stainless Steel Powerful Range Hood Kitchen Fan 850cfm SYRH306BSS-2013 NewModel Ultra Quiet Motor: Range Hoods use specially designed Hi-Speed and Ultra Quiet 3 speed motors. The twin motors revolving in opposite directions help to reduce noise and increase suction. Auto-Cleaning: Inside the range hood, a detergent tank and a small pump automatically spurt detergent on the fan when you push the Auto Clean button. Teflon-Coated Fan: The fan blades are coated with Teflon, thus separating grease from the air and depositing it in removable cups for easy cleaning. No Filter Required: The absence of filters enhances air delivery capacity and sales on replacement filter costs. Grease Collection and Removal: 	The grease collection pan and cups may be removed, washed and put back. Thats all!