Fan Power

The size of your kitchen will determine how powerful an exhaust hood fan is required to cleanse the air and prevent heavy cooking odors. Multiply the height of the kitchen ceiling by the length and width of the room to get the fan power. This will give you an idea of how big your kitchen is. You should select a range hood that can replace or clean the air in that space at least eight times each hour.

If you routinely fry, grill on your range top, or cook spicy, fishy, or strong-smelling items, you might consider a professional-level range hood. If you're only doing some little cooking, a conventional range hood might suffice.