AC Infinity CLOUDLINE S8 Quiet Inline Mixed-Flow Duct Fan 8"

High-Performance 8-Inch Flagship EC Inline Ventilation Fan with 10-Speed Controller

Designed for medium-to-large grow rooms (4×4 ft up to 5×5 ft) and commercial multi-tent setups, the AC Infinity CLOUDLINE S8 delivers flagship air-moving power with whisper-quiet operation. Engineered with an upgraded PWM-controlled EC motor and mixed-flow impeller, the S8 moves an impressive 807 CFM (1371 m³/h) of airflow while drawing an average of just 78 Watts.

Operating at an ultra-low sound level of just 39 dBA, the S8 eliminates the loud hum, buzzing, and motor vibration associated with conventional inline duct fans. Its stator blades and hydrodynamic wind circles build high static pressure (746 Pa) to pull air effortlessly through thick carbon filter beds, long duct runs, and light baffles. Featuring a wired 10-speed digital controller with memory backup, the CLOUDLINE S8 offers native UIS™ ecosystem connectivity to pair directly with smart controllers like the CONTROLLER 69 PRO for automated VPD, temperature, and humidity triggers via Wi-Fi.

Pro-Tip: Pair the CLOUDLINE S8 with an 8-inch AC Infinity Heavy-Duty Australian Carbon Filter to eliminate 100% of grow room odors in 4×4 ft or 5×5 ft tents while maintaining near-silent airflow.

What Makes It Stand Out

• High-Output 807 CFM Airflow: Delivers massive air displacement (1371 m³/h) to maintain optimal climate control, heat dissipation, and fresh air exchange in larger grow spaces.
• Ultra-Quiet 39 dBA Performance: Advanced PWM-controlled EC motor runs smooth and whisper-quiet without motor whine across all 10 speed levels.
• High Static Pressure Mixed-Flow Impeller: Stator blades and hydrodynamic wind circles force air efficiently through restrictive carbon beds, silencers, and complex ducting.
• 10-Speed Digital Controller Included: Fine-tune airflow with precise digital speed controls and automatic power-loss memory retention.
• Native UIS™ Integration: Plugs directly into AC Infinity smart controllers for dynamic climate automation, scheduling, and real-time app monitoring.
• Easy-Clean Removable Motor Hub: Central impeller housing detaches quickly from the mounting frame for easy cleaning without dismantling installed ductwork.
• 67,000-Hour Industrial Build: IP44 rated against dust and moisture, featuring dual ball bearings that support horizontal or vertical mounting in heavy-use grow environments.

Technical Specifications

Real-World Applications

• Medium-to-Large Grow Tents (4×4 ft & 5×5 ft): Primary exhaust and carbon filter fan for managing heat and humidity under high-intensity LED lighting.
• Multi-Tent Exhaust Manifolds: Serves as a central extraction unit pulling air from multiple smaller tents simultaneously.
• HVAC & Commercial AV Cooling: Quietly transfers large volumes of conditioned air through long duct runs or exhausts high-density AV and server rooms.