Vivosun Inline Fans

Which Aerozesh size?

All three fans share the same platform — EC motor, PWM speed control and a mixed-flow design that holds airflow over long duct runs — so the choice is purely about matching airflow to your space:

• Aerozesh S4 (4-inch): 208 CFM at a near-silent 39dBA — right for small tents and cupboard grows.
• Aerozesh S6 (6-inch): 405 CFM at 45dB — the mid-size workhorse for 1.2m to 1.5m tents.
• Aerozesh S8 (8-inch): the big-room option for larger tents and multi-tent setups on a shared duct run.

Size the fan to your duct and filter diameter first — running a bigger fan slowly is quieter and more efficient than running a small fan flat out.

Fan only, or complete kit?

The kits are the shortcut: each bundles the fan with a matched silver carbon filter packed with RC 412 Australian virgin charcoal in a 38mm bed for odour control, flexible aluminium/PET ducting with stainless steel clamps, rope hangers, and a controller. If you already own a filter and ducting, the fan-with-controller combos do the job on their own.

E12 or E42A controller?

Every fan and kit here ships with one of two controllers. The E12 speed controller gives you 10 PWM speed levels, memory backup after power cuts, and three automated wind-cycle modes — simple and effective. The GrowHub E42A adds a temperature and humidity gauge with an external probe, full automation of fan speed against climate targets, and WiFi app control with Grow Recipes. Rule of thumb: E12 for a fan you set and leave; E42A when you want the fan responding to the room.

Compare these with the rest of our grow tent fans, pick up spare ducting, or step back to the full Vivosun range for the humidifiers, heater and controllers that pair with these fans on the same app.