Attenuators are used as a complementary part of the HVAC system, to reduce noises arising from the fans, airflow inside the duct or any other noise source. The attenuators are used for a wide variety of applications, including: air treatment units, axial fans, centrifugal fans, generator rooms, chiller cooling units, industrial noise control systems spread along the ducting systems. The central pod is used for enhanced performance.
EFS attenuators have been tested at the SRL laboratory in the UK in accordance with BS/EN ISO 7235:2009.
The Circular attenuators are made by EFS Engineering in Israel.
- Model – EFS-RA Circular Attenuator without pod
- Model – EFS-RAP Circular Attenuator with pod