Alta 30-Inch 640 Max Blower Cfm 0.8 Sones Stainless Steel Range Hood From The Leader In Residential Indoor Air Quality, This Under-Cabinet Range Hood By Broan-Nutone Is Built To Surpass Industry Standards With Over 50 Points Of Inspection, Engineered As A Reliable Ventilation Solution. The Durable Hood Vent Is Equipped With Smartsense Auto Operation That Automatically Monitors And Adjusts The Ventilation Power Needed Based On Heat Coming Off The Cooktop To Maintain The Integrity Of The Iaq In Your Space. This Is The Most Powerful Under-Cabinet In Our Assortment At 640 Max Blower Cfm, And The Ez1 Install System Allows For A Quick And Easy 1-Person Installation. This Energy Star Certified Unit Is Code Compliant And Provides Cost Savings, And The 2-Level Led Lighting Modules And A 3-Speed Whisper Touch Infrared Control Make Cooking A Breeze. At Broan-Nutone We Believe That Better Quality Of Air Means Better Quality Of Life.