600 or 1,200 CFM Internal or In-Line Blower (Sold Separately) - The single or dual centrifugal blower motor design allows you to choose two levels of ventilation performance. 600 CFM offers a high level of power, while 1,200 CFM is exceptionally powerful,, Compatible with Cooking Surfaces up to 65K BTUs - This luxury custom hood liner is designed to withstand high heat outputs of up to 65K BTUs., 600 or 1,200 CFM Internal or In-Line Blower (Sold Separately), Dishwasher-Safe Premium Mesh Filters, 10-Inch Round Exterior Venting