Shop for Heating, Venting & Cooling at The Home Depot. The NuTone Value Test 70 CFM Exhaust Fan can be used in rooms up to 60 sq. ft. with a white polymeric grille to match a variety of home interiors. The 70 CFM fan helps reduce moisture and features a motor that operates at 6 sones for efficiency. The fan can be installed with a GFI branch circuit for use over bathtubs or showers and includes keyhole slots and torsion springs for simple set-up.