The Przybysz SILENT model extractor fan is an essential part of your ducting system, efficiently removing stale air to reduce humidity and improve indoor air quality. This fan comes in a distinctive Obsidian Black color and is equipped with a non-return valve to enhance positive air circulation. It is designed for home and office ventilation, complementing other black interior components. Key specifications include: an outer diameter (inner duct diameter) of 100mm, a standard type, an acoustic pressure of 25dB, and an air flow efficiency of 90m3/h. It is constructed from Black (Obsidian) ABS plastic and operates on 230VAC, 50Hz.