The 2025 Mars Hydro iFresh 4″ Inline Duct Fan is the perfect solution for small to medium grow tents, providing reliable and efficient airflow management. With a high-performance EC motor, precision blade design, and whisper-quiet 26 dBA noise output, it matches the quality of leading flagship models while remaining cost-effective thanks to Mars Hydro’s supply chain expertise.
Smart functionality is built in: the USB-based controller reduces cable clutter and enables app-based automation when paired with the iFresh MarsPro Add-On Pack. In Auto Mode, the fan maintains a 25% baseline speed and automatically adjusts when your set temperature or humidity thresholds are reached—keeping your grow environment stable without constant manual input.
Durable, efficient, and expandable, the iFresh 4″ inline fan is ideal for growers seeking a compact yet fully automated ventilation solution.
Main characteristics and benefits:
Compact Power – 205 CFM airflow capacity for 4″ grow tent ventilation.
Ultra Quiet – operates at just 26 dBA for noise-sensitive spaces.
Smart Control Ready – integrates with iControl app for climate monitoring and automation.
Energy-Efficient EC Motor – ensures strong airflow with low energy consumption.
Auto Mode – maintains steady airflow and automatically responds to climate triggers.