AC Infinity CLOUDLINE S-Series Inline Duct Fan – the benchmark for quiet, high-performance grow-room ventilation. Built for growers who demand serious airflow, whisper-quiet operation and full control, the S-Series mixes EC-motor efficiency, PWM speed control and a precision inline kit to deliver exactly what your climate setup needs. Each fan comes with a manual 8-speed controller using PWM (Pulse-Width Modulation) technology, giving you ultra-smooth control over airflow from low whisper levels up to full extraction capacity. The mixed-flow fan design combined with EC motor means low noise, low power draw and high static pressure performance — ideal for carbon filter setups, tents, rooms or recirculating systems. All mains powered products are UK specification and have UK plug. What Makes It Stand Out EC motor with PWM control — means fan runs cooler, quieter & more efficiently compared to standard AC motors. (Rated for 67,000 hours life) Mixed-flow blade design + stator elements — maintains airflow even under high static pressure (so when your filter or ducting is big, the performance stays strong) 8-speed manual controller included — set your optimum speed, memory function means it remembers after power-cuts Ultra-quiet operation — 28 dBA on 4″ model, advanced models 32-48 dBA typical for S6-S10 sizes Low energy use — efficient design draws minimal watts even at full speed (e.g., 28W on S4 at 348 m³/h) Detachable motor housing for easy cleaning and maintenance — extend the life of your extraction setup IP44 rated construction and dual ball bearings make it robust for grow-room environments. Sizes & Performance at a Glance Model Duct Size Airflow (m³/h) Noise (dBA) Max Power Draw CLOUDLINE S4 4″ 348 m³/h 28 dBA 28 W CLOUDLINE S6 6″ 683 m³/h 32 dBA 64 W CLOUDLINE S8 8″ 1,371 m³/h 39 dBA 110 W CLOUDLINE S10 10″ 2,040 m³/h 48 dBA 250 W Who Is This For? Indoor grow tents and hydroponic rooms needing reliable extraction & low noise Carbon filter odour control systems where static pressure is high Any ventilation scenario where noise matters — apartment setups, discreet tents, housing systems Commercial or hobby setups wanting professional airflow with minimal fuss Why Choose This Model? Many fans claim “quiet & efficient” — but the AC Infinity CLOUDLINE S-Series actually delivers it. The EC/PWM combo reduces motor heat & vibration; the mixed-flow design keeps performance up even when ducting gets restrictive; the included controller gives you real control, not just “on/off”. For growers who mean business, you won’t settle for less. Compatible with AC Infinity CONTROLLER 69 (for temperature/humidity automation) and part of the UIS™ ecosystem. Works with UK/EU voltage standard (100-240V, 50/60Hz) and ships with UK plug.
