A 10 in EC fan for grow rooms and big carbon filters, with the highest static pressure in the range. Loud near full speed.
Amazon $279The AC Infinity CLOUDLINE S10 is the better inline duct fan overall, rated 2.7 to 2.6. The AC Infinity CLOUDLINE S10 leads on noise and airflow. The AC Infinity CLOUDLINE S12 wins on efficiency. The AC Infinity CLOUDLINE S10 costs $100 less ($279 vs $379).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
The largest CLOUDLINE, moving 1,604 CFM for big rooms and multiple tents. It is loud at full speed, so most owners run it lower.
Amazon $379Which should you buy?
- Choose the AC Infinity CLOUDLINE S10 for noise (48 dBA at full speed vs 62 dBA at full speed) and airflow (1,201 CFM through 10 in duct vs 1,604 CFM through 12 in duct).
- Choose the AC Infinity CLOUDLINE S12 for efficiency (6.4 CFM per watt (1,604 CFM, 250 W) vs 4.7 CFM per watt (1,201 CFM, 255 W)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 8 in and up inline duct fan; a clear win is highlighted. How we rank explains each one.
| Factor weight | AC Infinity CLOUDLINE S10 | AC Infinity CLOUDLINE S12 |
|---|---|---|
| Overall rating | 2.7/5 | 2.6/5 |
| Value 25% | 23 $23.23 per 100 CFM ($279, 1,201 CFM) | 22 $23.63 per 100 CFM ($379, 1,604 CFM) |
| Efficiency 25% | 19 4.7 CFM per watt (1,201 CFM, 255 W) | 38 6.4 CFM per watt (1,604 CFM, 250 W) |
| Airflow 15% | 80 1,201 CFM through 10 in duct | 72 1,604 CFM through 12 in duct |
| Noise 15% | 34 48 dBA at full speed | 0 62 dBA at full speed |
| Controls 10% | 40 speed controller included | 40 speed controller included |
| Warranty 10% | 25 2-year warranty | 25 2-year warranty |
Specifications
| AC Infinity CLOUDLINE S10 | AC Infinity CLOUDLINE S12 | |
|---|---|---|
| Performance | ||
| Duct size | 10 in | 12 in |
| Rated airflow | 1,201 CFM | 1,604 CFM |
| Static pressure (not scored) | 1,059 Pa | 818 Pa |
| Power at full speed | 255 W | 250 W |
| Power figure | Max power draw | Max power draw |
| Average power (not scored) | 136 W | 139 W |
| Airflow per watt | 4.7 CFM/W | 6.4 CFM/W |
| Price per 100 CFM | $23.23 | $23.63 |
| Noise at full speed | 48 dBA | 62 dBA |
| Controls | ||
| Motor | EC | EC |
| Controller | 10-speed controller | 10-speed controller |
| Speeds | 10 | 10 |
| Temperature and humidity control | No | No |
| Phone app | No | No |
| Timer or cycle modes | No | No |
| Build | ||
| Housing | Plastic | Plastic |
| Ingress rating | IP44 | IP44 |
| Voltage | 100-240 V | 100-240 V |
| Warranty | 2 years | 2 years |
