Silent MV

EnviroVent Silent MV is a mixed-flow, in-line extract/supply fan family engineered for very low noise in ducted systems. The official product overview lists six duct sizes — 100, 125, 150, 160, 200 and 250 mm — and a maximum airflow range of 42 to 492 l/s. The low-profile, helicocentrifugal design uses a perforated inner skin and sound-absorbent material to attenuate noise, while a removable fan body and rotating junction box simplify installation and maintenance. IP44 protection and timer variants (1–30 minute over-run) are offered, and the range carries a 5-year warranty. In the largest 250 mm size, peak capacity is about 1,771 m³/h.