Acoustic louver is a type of ventilation louver engineered to reduce noise while allowing for the flow of air. Unlike standard louvers, which primarily provide passive ventilation and weather protection, acoustic louvers contain sound-absorbing material within their blades to offer effective noise control. They are essential in built-up areas where managing noise from mechanical equipment is critical. 

Our acoustic louvers are tested by Singlas and ilac-MRA Accredited testing laboratory according to ASTM E90-09 standard, with wide range STC performance.

How acoustic louvers work
The design of acoustic louvers is focused on minimizing sound transmission while maintaining adequate airflow.

Design and construction:
The blades are typically double-walled, with a solid metal top and a perforated metal underside.

Sound absorption:
The interior of the blades is packed with an acoustic infill, such as mineral wool, that absorbs sound energy as air passes through.

No line of sight:
The blades are angled to prevent a direct line of sight through the louver, which is a key factor in blocking noise transmission.

Airflow vs. Noise:
The design is a compromise between maximizing sound reduction and minimizing pressure drop, or air resistance.