The Eco Ventflo 250mm Extractor Fan features powerful airflow extraction and is suitable for installation in bathrooms, kitchens, laundries, powder rooms and toilets. It has been designed using back draught shutters to prevent warm air escaping from your bathroom into the roof cavity when the exhaust fan is not in use. This helps to maintain a comfortable temperature in the bathroom, meaning less energy is required for heating. It also prevents draughts from entering the room via the ceiling. This clever design means the Eco Ventflo is suitable for use in 5-Star Energy Rated homes where exhausting into the roof cavity is allowable. Eco Ventflo 250 has IPX2 rating and has a dishwasher safe fascia. Powerful Extraction: 671m3/h Airflow.