PURPOSE: A sound absorption louver is provided to simply and effectively reduce noise without additional mufflers by installing the louver outside an exhaust duct. CONSTITUTION: A sound absorption louver(300) is comprised as follows. An exhaust fan is installed in an exhaust duct(400) and forcefully exhausts indoor air to the outside. Multiple sound absorption blades(100) are formed in the outer side of the exhaust duct. Each sound absorption blade is composed of a frame and a sound absorption member. The frame is formed in a C-shape and is composed of a lower plate, side plates, and an upper plate. Multiple through holes and an auxiliary sound absorption plate are formed in the upper cover. The sound absorption member is coupled to the inside the frame.
