JETFAN Mixed-Flow Digital Fan – 8 Inch 710 CFM

The JETFAN Mixed-Flow Digital Fan in 8-inch format moves 710 CFM of air through a grow room or duct run while drawing roughly half the power of a comparable AC inline fan. Its EC motor is managed by a 32-bit microprocessor and ships with a detachable 0–100% speed controller, giving growers smooth, stepless airflow control without needing a separate fan speed controller.

JETFAN 8 Inch Fan Specifications

Physical and electrical specifications for the JETFAN Mixed-Flow Digital Fan, SKU PF1080 (8-inch / 710 CFM model).

Specification	Value
Brand	JETFAN
Model / SKU	PF1080
Duct Diameter	8 inch
Airflow Rating	710 CFM (at full speed)
Motor Technology	EC – Electronically Controlled
Controller	32-bit microprocessor; 0–100% speed; detachable
Power Consumption	~50% of comparable AC inline fans
Power Cord Length	5 ft
Weight	6.18 lb (6.1751 lb measured)
Certification	ETL
Available Sizes	4”, 6”, 8”, 10”, 12”

Why Choose the JETFAN Mixed-Flow Digital Fan

EC motors are the core reason JETFAN fans stand apart from most inline fans sold for grow rooms. In a conventional AC motor the speed is locked to mains frequency, and the only way to reduce it is to waste energy as heat through a resistive speed controller. An EC motor, by contrast, converts AC power to DC internally and drives the impeller with a variable-frequency inverter. The motor adjusts its current draw in real time to match whatever speed you dial in, so at 50% speed it draws far less than 50% of full-load watts – whereas an AC fan on a resistive controller at 50% speed still draws close to full wattage.

That efficiency difference matters over a full grow cycle. A single 8-inch AC inline fan running around the clock at moderate speed can account for a meaningful slice of a room's baseline electrical load. JETFAN's EC motor cuts that figure roughly in half, which also means less heat rejected into the space from the motor itself – a secondary benefit in warm ambient conditions.

The 32-bit microprocessor controller that ships with the fan provides smooth, stable speed adjustment over the full 0–100% range. The controller mounts inline with the power cord and can be detached and repositioned if you need the control point away from the fan housing. There are no hunting oscillations or sudden speed steps as you dial the control – the EC drive holds the set point steadily.

ETL certification means the fan has been tested to recognized North American safety standards by a nationally recognized testing laboratory. Vibration-free operation keeps noise low and reduces the mechanical fatigue on duct connections over time. For growers who are sensitive to noise, an EC fan running at partial speed is noticeably quieter than an AC fan run through a resistive speed controller at the same airflow.

• EC motor runs at approximately 50% of the power draw of comparable AC inline fans at similar airflow settings
• 32-bit microprocessor controller included – smooth 0–100% speed adjustment, no external controller required
• Detachable controller can be repositioned along the power cord to suit your room layout
• ETL-certified to North American safety standards
• Vibration-free operation reduces noise and minimizes stress on duct connections
• Mixed-flow design balances high static pressure capability with strong airflow – handles longer duct runs and carbon filters better than axial fans

Best Uses for the JETFAN 8 Inch Fan

The 8-inch 710 CFM model is sized for rooms and tents in the range of roughly 10×10 ft to 12×12 ft when running the fan at or near full speed with a standard carbon filter in line. At partial speed it suits smaller rooms where you want the flexibility to dial airflow down during cooler periods without swapping to a smaller fan.

• Primary exhaust in 10×10 to 12×12 ft grow rooms: 710 CFM provides enough airflow to turn over the room air several times per minute, which is the typical target for odor control and temperature management in sealed or semi-sealed environments.
• Carbon filter exhaust systems: The mixed-flow impeller handles the added static pressure of a carbon filter without the steep airflow drop that axial fans suffer. Pair it with an appropriately rated carbon filter – an air box pre-filter on the intake side extends the life of the main carbon filter by keeping particulates out.
• Energy-efficient continuous operation: Because the EC motor draws substantially less power at partial speeds, JETFAN fans are a good choice for applications where the fan runs 24 hours a day. The reduced wattage lowers both the electricity bill and the heat load in the room.
• Vertical or horizontal inline duct installations: The mixed-flow housing is designed for inline duct mounting and can be oriented in any direction, making it adaptable to different room configurations.
• Multi-fan ventilation setups: The stepless 0–100% speed control integrates well with environmental controllers. You can tie the fan to a temperature or CO⊂2; controller signal if the controller supports variable-speed fan outputs.

JETFAN 8 Inch vs Similar Inline Fans

The most common alternatives to EC inline fans in the 8-inch class are AC motor inline fans in roughly the same CFM range. The practical differences come down to efficiency, controllability, and noise.

Power consumption: A conventional AC inline fan in this size class typically draws 150–200W at full load. JETFAN's EC motor draws around half that figure for comparable airflow. In a facility running multiple exhaust fans, that gap adds up quickly on the electricity meter.

Speed control: AC fans paired with resistive speed controllers (the wall-knob type) waste the energy difference as heat and often run noisily at low settings. EC fans like the JETFAN hold their set speed cleanly and efficiently at any point in the 0–100% range. If you already use an oscillating circulation fan for canopy airflow and want the exhaust fan to handle ventilation duty cleanly, having both on independent, properly matched controls makes room management easier.

Noise: At equivalent airflow levels, EC fans are typically quieter than AC fans on resistive controllers, because the motor is running at a lower voltage and because EC motors do not produce the low-frequency hum characteristic of AC induction motors under load.

Mixed-flow vs axial: Pure axial fans move large volumes of air at low static pressure. They struggle when there is significant resistance in the duct path – bends, long runs, or a carbon filter. Mixed-flow designs maintain airflow better against moderate static pressure, which is why they are the standard choice for filtered exhaust applications.

Compatibility

The JETFAN 8-inch fan connects to standard 8-inch flexible or rigid ducting. The mixed-flow housing uses flanged connections at both inlet and outlet ends, compatible with typical duct clamps and aluminum tape seals.

The included speed controller operates on standard North American 120V AC household current and uses a standard 5-foot power cord. No additional wiring or ballast is required.

For growers using environmental controllers or timers, the fan can be plugged into a switched outlet on the controller. If you are using an advanced environmental controller – such as a controller that manages temperature, humidity, and CO⊂2; simultaneously – the fan is simply a 120V load on one of its outlet banks. The Autopilot PX2 controller is an example of a programmable environmental controller in the same equipment category that can manage grow room climate alongside your lighting schedule.

The 8-inch model is one of five sizes in the JETFAN line: 4”, 6”, 8”, 10”, and 12”. All share the same EC motor platform and detachable speed controller design, so the operational characteristics described above apply across the range.

Usage Guidelines

Sizing an exhaust fan correctly depends on your room volume and the air changes per hour (ACH) target. For odor-sensitive crops, most growers aim for 1 to 3 minutes per air change (20–60 ACH). A 10×10×8 ft room has 800 cubic feet of air. At 710 CFM, the JETFAN 8-inch moves that volume in just over 1 minute, giving roughly 53 air changes per hour at full speed – more than enough headroom to run at 50–70% speed under normal conditions and ramp up during peak heat periods.

Speed setting guidance:

• Full speed (100%): Use during high heat periods or when running with a carbon filter at full load. The 710 CFM rating is measured at this setting.
• 50–75% speed: Suitable for steady-state operation in most 8–10 ft square rooms. The EC motor efficiency advantage is most pronounced in this range – actual wattage drops significantly below the full-speed figure.
• Low speed (<30%): Useful for night periods or cooler ambient conditions when you want to maintain gentle air turnover without overcooling the space. The fan continues to operate stably at very low speeds due to the EC motor's precise speed regulation.

Run the exhaust fan continuously or on a timer depending on your environmental control strategy. In sealed rooms with CO⊂2; supplementation, growers typically run the exhaust fan only when CO⊂2; levels are not being maintained, or on a brief purge cycle before entry. In non-sealed rooms the fan runs continuously to manage heat and humidity. The JETFAN's low power draw at partial speed makes continuous operation economical.

How to Install the JETFAN 8 Inch Fan

1. Plan your duct path before mounting the fan. Identify where the fan body will sit in the duct run and where the exhaust exits the room. Minimize the number of bends – each 90° elbow reduces effective airflow. Aim for runs of 10 feet or less for best performance with a carbon filter in line.
2. Mount the fan housing using ratchet straps, chain, or mounting hardware rated for the fan weight (6.18 lb). The housing can hang vertically from the duct itself or be supported from the ceiling or a cross-member. Ensure the mounting point is secure and will not vibrate.
3. Connect the duct flanges at the inlet and outlet ports. Use 8-inch flexible ducting or rigid duct sections. Secure with duct clamps and seal any gaps with aluminum foil tape to prevent air leaks. If using a carbon filter, connect it to the inlet side of the fan so the fan draws through the filter rather than pushing into it – this arrangement is more efficient and keeps the filter dry.
4. Route the power cord to a nearby 120V outlet or switched outlet bank on your environmental controller. The 5-foot cord is adequate for most overhead installations; use an extension cord rated for the fan's amperage if additional length is needed.
5. Position the speed controller. The controller is detachable from the power cord and can be placed on a shelf or hung near the fan or at a convenient operator location. Set it to low speed before powering on for the first time.
6. Power on and test. Switch on at low speed and confirm the impeller spins without unusual noise or vibration. Gradually increase speed to check for duct rattles or loose connections. Seal any air leaks and re-check duct clamps if you hear turbulence at mid to high speed.
7. Set your target speed based on room temperature and humidity observations over the first 24–48 hours of operation. Adjust as needed with the speed controller dial.

Sources & Further Reading