The PyrAcoust is based on our Pyramid ventilator and is an acoustic window ventilator with good airflow and excellent acoustic performances: up to 45dB in open position. The modularity of the acoustic sets ensures an easy installation and offers flexibility at the highest level. The outer screen provides outstanding weather protection and is fitted with a stainless steel insect mesh. The ventilator can be easily opened and manually operated. The PyrAcoust is designed for use with wooden, PVC and aluminium windows.