AC Infinity CLOUDLINE S4 100 mm Inline Duct Fan – Quiet EC Grow Tent Ventilation with Speed Controller (205 CFM / 348 m³/h)

The AC Infinity CLOUDLINE S4 100 mm Inline Exhaust Fan is a high-quality ventilation solution for grow tents and controlled indoor grow spaces where quiet operation, efficient air circulation, and reliable climate control are essential. Thanks to its energy-efficient EC motor with PWM control, precise 10-speed controller, and a maximum airflow of 205 CFM (348 m³/h), this fan delivers powerful performance with exceptionally low noise levels.

The CLOUDLINE S4 is specifically designed for grow tent ventilation, odor control with carbon filters, and stable air exchange in indoor grow setups. Its mixed-flow fan design combines the power of a centrifugal fan with the efficiency of an axial fan, maintaining airflow even with higher resistance in ventilation ducts and filter systems.

With its quiet operation of only 28 dBA, durable construction, and compatibility with standard 100 mm ventilation systems, the CLOUDLINE S4 is a popular choice for growers who want to install a stable, quiet, and energy-efficient ventilation system in their grow tent or grow room.

Efficient Grow Tent Ventilation with EC Motor Technology

The fan is equipped with an energy-efficient EC motor with dual ball bearings, designed for long-lasting and reliable performance. This motor offers an excellent balance between powerful airflow and minimal noise production.

Advantages of the EC motor:

• lower energy consumption than traditional AC motors
• quiet and stable operation
• longer lifespan up to approximately 67,000 hours
• efficient air movement in ventilation systems

Thanks to this technology, the CLOUDLINE S4 can continuously provide 24/7 ventilation without excessive heat generation or noise production.

10-Speed Control for Precise Climate Control

The included manual speed controller allows for easy adjustment of the fan to different growing conditions. With 10 precise speed settings, the airflow can be perfectly matched to temperature, humidity, and ventilation needs.

This ensures:

• better temperature control in the grow tent
• more stable humidity
• efficient removal of hot air
• optimal conditions for plant development

PWM technology also ensures constant fan performance without unnecessary energy waste.

Ideal for Carbon Filters and Odor Control

The 100 mm (4 inch) connection makes this fan fully compatible with standard carbon filters and ventilation hoses, making it perfectly suited for odor control in grow tents.

By efficiently removing warm and humid air, the fan helps create a stable and controlled growing climate.

Common applications include:

• grow tent ventilation
• odor control with carbon filters
• hydroponic grow rooms
• small grow rooms
• technical rooms or storage rooms

Quiet Design for Use in Living Areas

With a noise level of only 28 dBA, the CLOUDLINE S4 is among the quietest fans in its class. This makes it particularly suitable for growers who have their setup in a living space, apartment, or noise-sensitive environment.

The casing is also IP44-certified, making the fan resistant to dust and splashing water and ensuring long-term reliable operation.

Technical Specifications

• Model: AC Infinity CLOUDLINE S4
• Type: Inline Exhaust Fan
• Connection Diameter: 100 mm (4 inch)
• Maximum Airflow: 205 CFM (348 m³/h)
• Noise Level: 28 dBA
• Motor: EC motor with dual ball bearings
• Motor Lifespan: ± 67,000 hours
• Speed Control: 10 speeds via manual controller
• Static Pressure: 223 Pa
• Power Consumption: Max. 28 W (average 21 W)
• Voltage: 100 – 240 V AC
• Protection Class: IP44
• Dimensions: 18.8 × 30.3 × 17.6 cm
• Mounting: Horizontal or vertical

Included

• speed controller
• power adapter
• mounting hardware
• installation manual

Why an Inline Exhaust Fan Is Important

An inline fan plays an essential role in any indoor grow setup. By removing hot air, excess humidity, and stagnant air, a ventilation system helps create a stable climate in which plants can grow optimally.

Key advantages of good ventilation:

• better temperature control
• more stable humidity
• efficient air circulation
• support for healthy plant development
• effective odor control

The AC Infinity CLOUDLINE S4 offers a reliable solution for growers seeking a quiet, efficient, and energy-saving ventilation solution for their grow tent or indoor grow room.

Why Buy from Amsterdam Grow Supplier

Amsterdam Grow Supplier exclusively selects high-quality growing equipment from reliable brands such as AC Infinity, known for their innovative ventilation systems and durable build quality.

With fast delivery, expert support, and our Best Price Guarantee, we help growers create a stable, efficient, and professional indoor growing climate.