Mars Hydro iFresh 4″ (10 cm) Smart Inline Tube Fan with Speed ​​Controller

The Mars Hydro iFresh 4" (100mm) Smart Inline Duct Fan provides powerful and efficient air circulation for grow tents and grow rooms. With an airflow capacity of 205 CFM and smart app control, this fan is an ideal choice for growers seeking advanced climate control. The design is based on motor and blade specifications comparable to flagship models from competing brands, giving you maximum performance at the lowest cost.

Key Features

• Airflow: 205 CFM, designed for optimal ventilation in small to medium sized grow rooms.
• Noise Level: Only 26 dBA, ensuring silent and continuous operation in your grow tent or grow room.
• Smart Control: The USB-based smart controller system reduces cable clutter and offers advanced, customizable controls via the iFresh App.
• PWM Speed ​​Control: With precise EC motor control and a speed of 3000±10% RPM for energy-efficient performance.
• Auto Mode (New 2025): In Auto mode, the fan runs at 25% by default and automatically switches to a set speed once the temperature or humidity threshold is reached. This ensures a stable climate without manual adjustments.
• App-based Integration: Compatible with the MarsPro Add-On Pack for fully automatic climate control via the iFresh App.
• Motor & Blades: High-quality motor and blade specifications ensure strong airflow and energy efficiency, comparable to the top models in the market.

Specifications

• Fan/Duct/Filter Size: 4 Inch
• Airflow: 205 CFM (approximately 348 m³/h)
• Speed: 3000 ± 10% RPM
• Static Pressure: 347 ± 10% Pa
• Voltage: 110 ~ 240 VAC
• Frequency: 50/60 Hz
• Input power: 27 W ± 5%
• Nominal Current: 0.4A (MAX)
• Working Temperature: -20 ~ 60℉ (-4 ~ 140℉)
• Waterproof rating: IP44
• Dimensions: 11.9 x 6.4 x 3.8 inches (30.2 × 16.3 × 9.7 cm)

Advantages

• Energy-efficient and Quiet: The EC motor provides powerful air circulation with low energy consumption and a whisper-quiet noise level of 26 dBA.
• Smart Control: Connect to the MarsPro Add-On Pack for full app-based control and real-time monitoring.
• Automatic Climate Control: Thanks to Auto mode and app integration, temperature and humidity are automatically regulated for optimal plant growth.
• Durable and Reliable: The IP44 waterproof design ensures a long lifespan, even in damp environments.
• Powerful Ventilation: With 205 CFM of airflow, this fan delivers excellent circulation and temperature control in any grow space.

Applications

• Indoor Grow Rooms : Ideal for air circulation in grow tents and small (hydroponic) spaces.
• Hydroponic Systems: Maintain a healthy climate for water-grown crops.
• Commercial Grow Rooms: Suitable for areas where stable temperature and humidity control are required.

Recommendation

The Mars Hydro iFresh 4" Inline Duct Fan provides reliable, energy-efficient, and quiet ventilation for any growing environment. Thanks to its smart controls, Auto mode, and integration with the MarsPro Add-On Pack, ventilation can be fully automated. A perfect choice for both hobbyists and professional growers seeking optimal climate control.