Frigidaire's FHWC3070LS features dual-centrifugal fans move air quietly and efficiently up to 340 CuFt of air per minute. There is halogen lighting for bright illumination of the cooktop surface. The filters are removable, Dishwasher safe for easy cleaning. The aluminum filter provides strength and durability not found in foam filters, and dishwasher safe for easy cleaning. The aluminum filter provides strength and durability not found in foam filters.