This Jenn-Air® luxury convertible under-cabinet hood combines stylish design with efficient ventilation. It features a high-performance 400-CFM blower, three speed settings and dual halogen work surface lighting. 400 CFM Dual High Performance Blower Push Button Controls with Three Speed Settings Three different speed settings allow you to adjust the ventilation power to your needs. Dual Halogen Work Surface Lighting Twice as energy efficient and longer-lasting than incandescent light bulbs, this halogen lighting illuminates the cooking surface from above. Sophisticated Designer Styling This luxury convertible under-cabinet hood offers a minimal design aesthetic. 8.0 Sone Rating With an exceptionally quiet 8.0 sone rating, operating noise is kept to a minimum. Vertical or Horizontal Exterior Venting Ductwork in the ventilation system that extends through an outer wall or the roof of a home. 3 1/4" x 10" Rectangular Exterior Venting The 3¼" x 10" rectangular exterior ventilation system allows ductwork to extend through an outer wall or the roof of a home. Recirculating Installation Option (Recirculation Kit Required)