The Envirovent Silent MV range represents a significant advancement in in-line duct fan technology, offering unparalleled acoustic performance with up to 12 dB(A) less noise than comparable products. Developed through intensive research and development, this range guarantees exceptional performance coupled with substantial noise reduction. The fan operates silently due to its unique perforated casing design, which channels sound waves into a high-density sound-absorbent material, preventing air leakage and minimizing noise. This versatility makes the Silent MV ideal for various small to medium ventilation installations, particularly where systems operate for extended periods, ensuring comfort without disruptive noise. Its innovative, low-profile, and compact design facilitates installation in space-restricted areas like false ceilings. The connection box can be rotated 360° for easy power cable connection, and support brackets are included for wall or ceiling mounting. Maintenance is simplified as the central body can be easily detached from the connections without disturbing the ducting.