Air conditioning and ventilation
Everyday devices must do their job unnoticed due to low noise radiation. The air-borne noise of the fans, even if not avoidable altogether, should remain in an agreeable and low range. Structure-borne noise should be controlled effectively and the air blowing from the a/c unit should not contain dust particles.
Hanno-Redusoft seals the parts of the air-conditioning unit whereas Hanno-filter foams eliminate dust from the air. HANNO materials of the Protecto series attenuate the emitted noise to a large extent.