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Noise - reducing louvered window

The noise - eliminating louver, also known as the louver - type muffler, is a window - type structure that allows air flow to pass through and can eliminate noise.
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  • Materials and Structure: Commonly used materials include stainless steel, high-quality aluminum alloy, galvanized steel sheet, etc. The blades of some noise - reducing louvers are of a fully aluminum alloy structure with secondary oxidation coating. The louver blades are designed in shapes such as oval and airfoil. Under the blades, there are microporous piston - type sound - absorbing resonators or sound - absorbing materials like centrifugal glass wool are filled, and they are covered with fiberglass cloth and perforated plates. 

  • Noise - reducing Principle: By utilizing the air damping effect among multiple layers of materials, sound waves are absorbed and dissipated when passing through the louvers. At the same time, the structure of the louvers can also reflect some sound waves, reducing their interference with the interior, thus reducing the transmission of noise.

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