Style:50/80/110 CFM Product Description Whispergreen select is a ground-breaking iaq solution that is revolutionizing the ventilation fan industry with a new set of features that enable customization and easier installation. To the builder and professional installer, Panasonic continues to be the innovation leader with high performance ventilation solutions that are built to last. Whispergreen select's unique design and superior energy efficiency are achieved through engineering expertise, provided by a Company who sets the standard for quality and value. Whispergreen select features the same revolutionary dc motor that comes with our whispergreen line of products. With built-in smart flow technology, whispergreen select is designed to perform as rated. When the fan faces static pressure, its speed is automatically increased to ensure optimal cfm output. This feature provides peace of mind, as the installer doesn't have to worry about compromising the fan's performance. Ashrae, energy star, led for homes, and hvi have set the industry standard for performance measurement at 25 inch W.G. The whispergreen select fans not only provide powerful cfm output at 25 inch W.G., but our sones have also been certified at 25 inch W.G. So they are quiet under pressure and after installation. Integrated dual 4 inch or 6 inch duct adaptor (up to 110 cfm models) built-in metal flange provides blocking for penetrations through drywall as an air barrier, and assists with the decrease in leakage in the building envelope during blower door testing. Master Carton Dimensions: 16.8 inch H x 14.25 inch W x 11.17 inch D, Grille Size: 13 square inches, Mounting Opening: 10.5 square inches From the Manufacturer WhisperGreen Select is a ground-breaking IAQ solution that is revolutionizing the ventilation fan industry with a new set of features that enable customization and easier installation. To the builder and professional installer, Panasonic continues to be the innovation leader with high performance ventilation solutions that are built to last. WhisperGreen Select's unique design and superior energy efficiency are achieved through engineering expertise, provided by a company who sets the standard for quality and value. WhisperGreen Select features the same revolutionary DC motor that comes with our WhisperGreen line of products. With built-in SmartFlow technology, WhisperGreen Select is designed to perform as rated. When the fan faces static pressure, its speed is automatically increased to ensure optimal CFM output. This feature provides peace of mind, as the installer doesn't have to worry about compromising the fan's performance. ASHRAE, ENERGY STAR, LEED for Homes, and HVI have set the industry standard for performance measurement at .25" w.g. The WhisperGreen Select fans not only provide powerful CFM output at .25" w.g., but our sones have also been certified at .25" w.g. so they are quiet under pressure and after installation. Integrated dual 4" or 6" duct adaptor (up to 110 CFM models) .Built-in metal flange provides blocking for penetrations through drywall as an air barrier, and assists with the decrease in leakage in the building envelope during blower door testing.
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