Description
Steady Fresh Air for Damp, High-Humidity Grow Spaces
The AC Infinity Cloudline H4 is a 100mm (4 in) inline fan made for the conditions that wear an ordinary fan out: the near-saturated air of mushroom fruiting chambers, propagation tents and other high-humidity grow spaces. Its IP65-sealed housing keeps out moisture, dust and spores, while a quiet EC motor moves up to 360 m³/h (212 CFM) at just 27 dBA. A plug-in speed controller with 10 precise levels is included, so you can set a gentle, constant exchange of fresh air rather than blasting the space, and it runs from a standard UK plug.
Key Benefits
- IP65 rated — sealed against moisture, dust and spores, and rated to run at 35–95% RH
- 10-speed controller included — PWM control keeps the fan smooth and quiet even at very low speeds, and it remembers its last setting after a power cut
- Quiet and frugal — 27 dBA, around 18 W average draw and 35 W at full speed
- Mixed-flow design — stator blades build 324 Pa of static pressure to push air through filters and longer duct runs
- Dual ball bearings — rated for 67,000 hours and happy mounted horizontally or vertically
- Easy to clean — the motor box lifts out of its mounting frame for washing down
- UIS compatible — plug it into an AC Infinity Controller 69 PRO or AI+ for app control and humidity, temperature or timer programming
CO2 Build-Up and Stale, Saturated Air
Mushrooms and other crops grown in closed, humid spaces breathe out CO2, and without fresh air exchange it collects around them; long stems and small caps are the classic sign. Ordinary inline fans fare badly in the same space, as constant condensation reaches the motor and electronics. The H4 is sealed for exactly that environment, so it can run steady, low-speed airflow around the clock, clearing CO2 and stale air while you keep humidity where the crop needs it.
How to Use
- Mount the fan horizontally or vertically through the holes in its base, close to the chamber or tent outlet
- Run 100mm (4 in) ducting to fresh air outside the growing space and clamp every joint
- Start on a low speed and raise it a level at a time until stale air clears without drying the space
- Clean it regularly — lift the motor box out of the frame to wash away spores and residue
- To automate, connect it to a UIS controller such as the Controller 69 PRO and let humidity, temperature or a schedule set the speed
Technical Specifications
- Duct size: 100mm (4 in)
- Airflow: 360 m³/h (212 CFM)
- Power: 35 W maximum, 18 W average, 0.55 A
- Noise: 27 dBA
- Model: AI-CLH4
- Static pressure: 324 Pa
- Maximum speed: 3,000 RPM
- Supply: 100–240V AC, 50/60Hz, UK plug
- Ingress protection: IP65
- Operating humidity: 35–95% RH
- Operating temperature: 0–60°C
- Motor: EC, PWM controlled, mixed-flow impeller with stator blades
- Bearings: dual ball, 67,000-hour L10 life
- Speed control: included controller, 10 levels, with memory
- Dimensions: 30.2 x 19.0 x 17.6 cm
- Mounting: horizontal or vertical; base holes 8.0 x 6.0 cm apart, 0.5 cm diameter
- Cable: 1.8 m fan to controller, 1.8 m controller to plug
- Platform: AC Infinity UIS — works with Controller 69 PRO, 69 PRO+ and AI+ (sold separately)
Frequently Asked Questions
Is the Cloudline H4 only for mushrooms?
No. AC Infinity designed it for mushroom fruiting chambers, but it suits any space where a standard fan would sit in constant moisture, such as propagation tents and humid grow rooms. Its IP65 sealing and 35–95% RH rating are what set it apart from the other Cloudline fans.
Can I control it from my phone?
Not on its own. The supplied controller gives 10 manual speed levels. For app control and automatic triggers, connect the H4 to a UIS controller such as the AC Infinity Controller 69 PRO or AI+, sold separately.
Can I run a carbon filter with it?
Yes. Any 100mm (4 in) carbon filter will connect, and the mixed-flow design produces 324 Pa of static pressure to pull air through the filter and ducting. Make sure the filter's airflow rating is at least 360 m³/h.
Does it come with a UK plug?
Yes. The UK version runs on 100–240V and is supplied with a UK plug, with 1.8 m of cable from fan to controller and another 1.8 m to the plug.
Works Well With
