The Panasonic FV-08VRL1 WhisperRecessed 80 CFM Bathroom Fan features an architectural grade luminaire design that is both energy efficient and provides powerful ventilation above the ceiling. This great bath fan features adjustable lamp positioning as well as deeper regression that reduces the glare, provides diffuse, and uniform illumination. The Panasonic FV-08VRL1 WhisperRecessed 80 CFM Bathroom Fan provides quiet operation at 1/4" water gauge which is the industry standard for performance measurement for Energy Star, ASHRAE, HVI, and LEED for Homes. This incredible bath fan is super quiet and has certified sone levels of 0.8 and 0.7 at 1" and 0.25" w.g. The Panasonic FV-08VRL1 WhisperRecessed 80 CFM Bathroom Fan is designed to provide many years of continuous, trouble free operation due to the permanently lubricated motor and high-quality components. Heat can be detrimental to the fan motor shortening the life span; this is why Panasonic designed the electrical configuration of the Panasonic FV-08VRL1 Bathroom Fan's condenser motor to operate at lower temperatures. The Panasonic FV-08VRL1 WhisperRecessed 80 CFM Bathroom Fan also features a housing that is made of heavy-gauge zinc galvanized steel and the housing is painted to provide protection from rust.