Best HBC1 series provides powerful hidden ventilation while keeping sightlines open. Choose between powerful 650 to 1650 Max Blower CFM options (sold separately) for premium performance that meets virtually any cooking demands. The HBC1 series is equipped with Code Ready Technology (CRT), which provides the ability to reduce CFM levels to address local codes or make-up air requirements. Four-speed electronic controls, 10-minute delay off, three levels of bright LED lighting, and ADA capability round out a feature set that is sure to impress.