Circulation fans move air around a space — which is a different job from moving it in or out. These are the fans that keep air stirring between your intake and your extraction, so nothing sits still and nothing gets stagnant. Clip-on fans for tents and shelves, and a floor/wall fan for larger rooms. Quiet EC motors throughout, stocked in Sydney with local warranty from Quick Bloom Lights, the official Australian AC Infinity importer.
From 29 dBA
quiet enough to forget about
11 W
to run a Cloudray continuously
10 speeds
plus wind modes & oscillation
UIS™
app control & automation optional
How much airflow, and where to point it
A circulation fan isn't a per-plant purchase, and counting plants isn't the way to size it. What you're aiming for is simpler: everything in the space should be moving slightly, all the time. Leaves should have a gentle, constant flutter — not being whipped around, and not standing dead still. Still air is where problems start; violent air causes its own.
Height matters as much as coverage. Air moving across the top of the canopy does nothing for what's underneath it, and the lower growth and the base are exactly where stagnant, humid air settles. The setup that works best in most spaces is two fans at different heights — one above or across the canopy, and a second lower down aimed through the stems and the base, so air moves right through the plant rather than just over it.
Set them to a speed where the whole space has movement, then check the corners and the lower growth and adjust from there.
Which fan for which job
| Fan |
Airflow |
Best for |
|
Cloudray S4 — 4″ |
204 CFM, 29 dBA |
Tight spaces, propagation tents, the lower fan position |
|
Cloudray S6 — 6″ |
325 CFM, 31 dBA |
The all-rounder — small to mid tents, either position |
|
Cloudray S9 — 9″ |
405 CFM, 35 dBA |
Wider canopies, the upper fan position |
|
Cloudlift S14 — 14″ |
Floor or wall mount |
Full rooms rather than tents — stands or mounts, wireless control |
All three Cloudrays draw the same 11 W and share the same motor, speed range, wind modes and oscillation. The difference is the size of the impeller and therefore the shape of the air it throws — narrower and faster on the S4, wider and softer on the S9.
Looking for extraction rather than circulation? These fans stir air inside a space — they don't move it in or out. For that you want an
inline duct fan for ducted extraction, or a
shutter exhaust fan for pulling air straight out through a wall. Most setups need both: extraction to exchange the air, circulation to keep it moving in between.
FAQ
What's the difference between a circulation fan and an exhaust fan?
A circulation fan moves air around within a space so nothing sits still. An exhaust or inline fan moves air out of the space entirely, exchanging it for fresh air and carrying heat, humidity and odour away. They're not alternatives — a room with extraction but no circulation still gets stagnant pockets, and circulation alone doesn't remove heat or humidity from the room.
How many do I need?
Judge it by movement, not by a count. If anything in the space is standing completely still, you need more airflow or better placement. Most spaces end up with two at different heights rather than one working harder.
Do I need a controller?
No. Every fan here runs standalone on its own controls. A UIS-compatible AC Infinity controller adds app control, scheduling and climate-triggered automation — useful once you're running several devices in one space, unnecessary if you just want steady airflow.
Should they run continuously?
Generally yes. Air should be moving all the time rather than in bursts. At 11 W a Cloudray costs almost nothing to leave on, and the EC motors are built for continuous duty.
I'm not a grower — can I use these anywhere else?
Yes, and plenty do. The clip fans end up on desks, in offices, workshops, garages, server cupboards and caravans; the Cloudlift S14 works as a quiet floor or wall fan in any room. The qualities that suit a grow space — low noise, low power draw, oscillation, and a clamp or mount instead of a floor stand — are the same ones that make them good anywhere you want steady air movement without noise or a power bill.
Is this genuine AC Infinity stock with Australian warranty?
Yes. Quick Bloom Lights is the official Australian importer and distributor for AC Infinity. Every unit ships with a fitted Australian plug and a two-year warranty handled here in Sydney — no sending units overseas, no dealing with an offshore seller if something goes wrong.
