4 inch Dia Noise Insulation External Wall Wind Sound Baffle Vent Cover Draft Excluding Air Ventilation for Extractor Fans Heat Recovery Cottage Hotel Café

Standard 100 mm duct connection – Fits 100 mm (4”) air ducts for supply or extract ventilation. Overall dimensions are 220 x 230.5 x 54 mm for a neat external wall finish. Reduces wind noise and draughts – Curved baffle design helps prevent wind blowing back into the vent, reducing rumbling noise and cold draughts in windy conditions. Easy to clean – Removable front cover with integrated drip tray allows quick access for cleaning and routine maintenance without removing the unit. Suitable for intake or extract air – Can be used for fresh air supply or air extraction in residential, commercial, and light industrial ventilation systems. Compatible with modern ventilation systems – Suitable for MVHR, MEV, dMEV, and single-room heat recovery systems, with a non-inflammable body for added safety.