Motion Sensor & Overrun Timer: Airflow Bathroom Extractor fan is equipped with a motion sensor for automatic activation and a fixed run-on timer of 15 minutes, ensuring efficient use and convenience, especially when hands-free operation is desired. 100mm/4” Duct Size. Energy Efficiency : With power consumption starting at just 5 watts and a low specific fan power (SFP) of 0.24 w/l/s, this fan offers excellent energy efficiency, helping to reduce energy costs without sacrificing performance. Two-Speed Extraction: Airflow Bathroom Extractor Fan is equipped with a high-efficiency 100mm axial impeller, offering airflow rates of 75/90 m³/h (21/25 l/s) across two speed settings for tailored ventilation in bathrooms, en-suites, and toilets Safe, Compliant, & Easy Maintenance: Rated IP45 for protection against water and dust, safe for use in wet zone 1 when installed with an RCD, and compliant with Building Regulations Approved Document F. It also features an easy-to-clean clip-on cover for hassle-free maintenance. 3-Year Warranty & Made in Germany: This fan comes with a 3-year warranty for peace of mind and is Made in Germany, ensuring high-quality standards and superior performance for long-lasting use., Weight: 1.543235834 pounds, Manufacturer: Airflow