CLOUDLINE S6, Quiet 150mm Inline Duct Fan

Very powerful extractor. Used to externally duct a xTool P2S laser cutter. More powerful than the standard internal extractor and much quieter. Good upgrade.

Great product that felt well-designed and premium. It didn't happen to work for the overly-ambitious use case I had for it (multi-room air exchange) but can thoroughly recommend it for the uses most buyers have for it.

I purchased this cloud line S6 to try to cool my bedroom down. I was so impressed with it and the way it performs I bought another one to put in my bathroom for air circulation. My room temperature has gone down 50% and I’m only using half of the power of the S6 unit. As you can see by the image, I have a prospects window which is hard to see that the unit pushes air through.

I really like this unit, it's powerful, it's quiet and the noisiest bit is the airflow. I am using it to blow air into a portable generator enclosure and the first thing I learnt was to make sure it has a good plenum to draw. I also found it works better if the outlet is not too close to a bend or obstruction or the back pressure affects it. But all of that is good HVAC design practice and for the money its very powerful if you wind it up.

For me the ac infinity fans were a game changer, got my environment dialled in just how I need it and with ease to, I purchased an s6 and a t4 reasonably priced I might add, they work perfectly together! These fans are great quality and I was even more pleased when they already came with a connector attached to a U.K. plug! Overall 10 out of 10 for these fans, hats off to AC infinity, they’re so quiet and just a quality product, I will never use another make again, if you’re thinking about buying one just do it, you will not be disappointed

I replaced a built in fan in my kitchen extractor unit (failed motor) by mounting this unit in-line in the extract duct. The remote lead was long enough for me to mount the remote in my old unit and yet have the fan mounted well away. I mounted the fan on wires thus reducing any transmitted running noise (I would not expect much anyway as such a smooth running motor). The level of extraction is variable and perfect for the application. Excellent product 10/10. Fully recommend.

Best I've seen for less than a ton.

Quality product. Does the job it's meant to very nicely

The brand is one of the better manufacturers selling to the general public and the vendor was very supportive and provided prompt service. I would buy from them again and recommend the inline fan without hesitation. It’s quiet at lower settings and works without issue.

Good quality. Very quiet. Using for 1.5 years. Excellent quality

This inline fan works great — super quiet and powerful, exactly what I needed to improve airflow in a small space. It moves a lot of air without the loud hum you get from cheaper fans. Installation took a bit of fiddling to get everything sealed properly, but once it was set up, it ran smoothly. Really happy with the quality and performance.

I purchased the AC Infinity CLOUDLINE PRO S6, 6” Inline Duct Fan with Speed Controller to help keep my miner room cool, and it has exceeded expectations. The EC motor is both powerful and efficient, and what surprised me most is just how quiet it runs, even at higher speeds. Installation was straightforward, and the included speed controller makes it easy to adjust airflow as needed. Running multiple miners can heat up a room quickly, but this fan has made a huge difference — it keeps temps under control without adding a lot of noise or power draw. The build quality feels premium, and I can tell it’s designed to run continuously without issues. ✅ Pros: Very quiet operation, even at high speeds Strong airflow to keep miner room temperatures down Speed controller included for precise adjustment Efficient EC motor saves power over time Solid build quality, designed for 24/7 use ❌ Cons: Higher upfront cost compared to budget inline fans Speed controller cable could be a little longer 💡 Tips: Use insulated ducting to further reduce noise. Mount the fan with vibration-dampening straps for an even quieter setup. Pair it with a temperature or humidity controller for automatic adjustments. Clean the fan and ducts periodically to maintain peak airflow. Bottom Line: The CLOUDLINE PRO S6 is a top-tier ventilation fan that’s perfect for high-demand environments like mining rooms, hydroponics, or grow tents. It’s quiet, efficient, and powerful — exactly what you need for reliable cooling in a 24/7 setup.

Es la mejor compra que hice en los últimos años. Funciona excelente, una calidad increíble. Viene con todo tipo de cables y detalles para conectarlo. Una pasada la verdad