Prevents condensation water running back down the duct towards the fan. This could potentially cause a hazard therefore Airflow Developments recommends the use of a condensation trap in its ducting systems, in line with the best guidance of the domestic ventilation compliance guide. This product is for use with 150mm diameter round ducting and has a 21.5mm connection for a PVCU overflow waste pipe.
Preventing mould and condensation in the property also involves protecting from condensation in the ducting and unit.
