Horizontal, vertical, fixed type, manually or electrically controlled
Ventilation and lighting windows on ceilings and walls for sound absorption, dimming and noise reduction
Refer to acoustic design
Fire protection performance:
Surrounding aluminium alloy frame, perforation rate 11-28% with environmental friendly sound absorption cotton filled inside
Installation racks need to be customised and purchased separately
3000×600×50mm (upper limit of length)
Areas with large space, e.g. stadiums, airports and bus stations to control the reverberation time.