AEROBLAST SILENCED DUCT FAN - Noise-Reduced: The Pro Grow Aeroblast Silenced Duct Fan, available in 125 mm, 150 mm, 200 mm, 250 mm, and 300 mm sizes, offers a quiet and efficient ventilation solution for indoor environments. Featuring noise levels as low as 38 dB and airflow ranging from 335 m³/h to 2600 m³/h, these fans (models PGDS125S to PGDS300S) operate at 230V with power consumption from 30W to 350W, ensuring optimal air circulation and pressure (342 Pa to 805 Pa) while minimising disturbance. The silenced design enhances user comfort, making it ideal for noise-sensitive spaces, while the robust construction and included analogue speed controller provide reliable performance and flexibility for maintaining ideal growing conditions.