30" Range Hood w/ the FIT System - Quiet and Efficient The time consuming ways of installing hoods are now a thing of the past. The 30" range hood with the FIT system eliminates measuring, cutting and filler strips for a perfect fit every time. Once installed, homeowners enjoy the quiet operation of 6.4 sones at its highest speed with variable fan speeds and recirculation option. This way, the vent hood doesn't disturb family time in the kitchen. And when cooking introduces steam, grease, smoke and odors into the surrounding air, a 225 CFM fan takes care of it.