--- product_id: 599900362 title: "AC Infinity CLOUDLINE S12 PRO, Quiet 12” Inline Duct Fan with 10-Speed Controller, EC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics" brand: "ac infinity" price: "€ 1564.75" currency: EUR in_stock: true reviews_count: 5 category: "Ac Infinity" url: https://www.desertcart.be/products/599900362-ac-infinity-cloudline-s12-pro-quiet-12-inline-duct-fan store_origin: BE region: Belgium --- # 62 dBA ultra-quiet 10-speed PWM EC motor 1604 CFM airflow AC Infinity CLOUDLINE S12 PRO, Quiet 12” Inline Duct Fan with 10-Speed Controller, EC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics **Brand:** ac infinity **Price:** € 1564.75 **Availability:** ✅ In Stock ## Summary > 🌿 Elevate your airflow game with precision, power, and peace of mind. ## Quick Answers - **What is this?** AC Infinity CLOUDLINE S12 PRO, Quiet 12” Inline Duct Fan with 10-Speed Controller, EC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics by ac infinity - **How much does it cost?** € 1564.75 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/599900362-ac-infinity-cloudline-s12-pro-quiet-12-inline-duct-fan) ## Best For - ac infinity enthusiasts ## Why This Product - Trusted ac infinity brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Whisper-Quiet Efficiency:** EC motor with mixed-flow design delivers high static pressure airflow at a noise level that won’t disrupt your workspace or grow room. - • **Durable & Low-Maintenance:** Dual ball bearings rated for 67,000 hours and detachable motor box for effortless cleaning keep your system running smooth and long-term. - • **Precision Airflow Control:** 10-speed PWM controller lets you dial in the perfect breeze for any environment, from whisper-quiet to powerful ventilation. - • **Seamless Smart Integration:** Compatible with UIS smart controllers for intelligent programming and remote management—future-proof your ventilation setup. - • **Versatile Application Ready:** Perfect for hydroponics, AV closets, heating/cooling boost, and odor exhaust—engineered to elevate any professional environment. ## Overview The AC Infinity CLOUDLINE S12 PRO is a high-performance 12-inch inline duct fan featuring a 10-speed PWM-controlled EC motor that delivers up to 1604 CFM airflow at a whisper-quiet 62 dBA. Designed for hydroponic grow rooms, AV closets, and HVAC boosting, it offers durable dual ball bearings rated for 67,000 hours and a detachable motor box for easy maintenance. Its mixed-flow design ensures efficient airflow even in high resistance setups, while compatibility with UIS smart controllers enables advanced environmental control. ## Description Inline Duct Fan A smart inline duct fan designed to quietly ventilate hydroponic grow rooms, boost heating/cooling, circulate fresh air, exhaust projects, and cool AV closets. Features an inline speed controller utilizing PWM-technology. Contains a mixed-flow design and EC-motor for a quiet and high static-pressure performance. The motor box containing the fan's impeller and blades can be detached for easy cleaning and maintenance. Complete kit includes one duct fan unit, one corded speed controller, installation manual, necessary mounting hardware, and a corded power adapter (UK 3-pin 220-240V AC Wall Plug - Type G). This product is a part of the UIS platform of grow devices and smart controllers, designed to integrate with each other to achieve your ideal environment. Precise Speed Controller The inline speed controller enables you to set the duct fan's speed to optimal noise and airflow levels for various environments. Unlike common AC-powered duct fans that suppresses voltage to control fan speeds, this fan features an EC-motor that is precisely controlled using PWM (Pulse Width Modulation). This enables the motor to run smoothly at low RPM speeds without generating motor noises and heat. Eight-speed options are available with power on/off switch. Due to its backup memory capability, the fan can be triggered to run at custom speeds when given power. This S12 model can be connected to the CLOUDLINE T12 smart controller to share the same programming. Quiet and Energy Efficient Design The fan features a mixed flow design using a stator blade and dual hydrodynamic wind circles. This gives it a high static pressure rating to deliver airflow in applications where air movement is restricted. The motor houses dual ball bearings rated at 67,000 hours which allows the duct fan unit to be mounted in any direction. The unit is IP44 rated to be resistant to dust and liquids. Review: Lazy product - I bought this to replace an existing failed 12" inline boost fan for a home ventilation system. I'm going to be quite critical because I'm comparing against another EC fan. A summary of my review is that I think this is quite a lazily designed product to be demanding such a high price (£350). More professional options are not that much more expensive, but offer far greater quality. This seems to be an example of a compact EC motor being slapped into a shell designed for a bulky AC motor. The benefits of a smaller, energy-efficient motor are not taken advantage of. First off, it does work and sort of meets some of the basic claims. It can be controlled by PWM - if you replace the silly USB-C cord (I take personal offence to this inappropriately used connector for 10-volt PWM signals). I connected this up to a Shelly for WiFi speed control. It does move a lot of air at the top speed and can be slowed down to a very quiet level. The next thing anyone will note is how loud it is. The volume at full-speed is expected, and it can run very quietly at low RPMs. However, everything in-between is kind of closer to the louder-end of what I hope and expected. While installing, I found the 12" diameter to be a bit of a loose claim (heh). This doesn't follow the normal conventions expected from other 12" ducting products. Specifically, the outer diameter of the inlet/outlet is 300mm rather than the usual 312-315mm, this means that existing 12" ducting was more than just very loose. It's a good thing that I decided to replace the mains cord, because it seemed the cable grip had badly crushed the cord. These sorts of fans are always marketed for hydroponics (hmm...), but one thing I noticed quite taking a closer look was the general lack of sealing. If it does meet IP44 specs, it does it very barely. I don't expect this to survive much condensing humidity. Review: Fantastic deal - Quiet, powerful exhaust fan. Using it for a whole house circulation. The remote can be interfaced with a microcontroller generating a pwm signal, for extremely powerful and customized control. ## Features - Designed to ventilate hydroponic grow rooms, transfer heating/cooling, cool AV closets, and exhaust odors. - Features a wired 10-speed fan controller; also compatible with all UIS controllers with intelligent programming. - PWM-controlled EC motor provides quiet and energy-efficient performance with minimal heat and noise. - Mixed flow design with stator blade and hydrodynamic wind circles enables airflow delivery in high resistance areas. - Duct Size: 12” | Dimensions: 14.9 x 17.7 x 14.1 in. | Airflow: 1604 CFM | Noise: 62 dBA | Bearings: Dual Ball ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07X8QPX2T | | Customer Reviews | 4.3 4.3 out of 5 stars (61) | | Date First Available | 8 June 2022 | | Item model number | CLOUDLINE S12 | | Manufacturer | AC Infinity | | Material type | Metal | | Part number | AI-CLS12 | | Power source type | Corded Electric | | Product Dimensions | 35.81 x 37.85 x 44.96 cm; 11.2 kg | ## Product Details - **Brand:** AC Infinity - **Colour:** Black - **Electric fan design:** Blower - **Mounting type:** Wall Mount - **Power source:** Corded Electric - **Product dimensions:** 35.8D x 37.8W x 45H centimeters - **Recommended uses for product:** Cooling - **Room type:** Bathroom - **Special features:** Bladeless - **Style:** Industrial ## Images ![AC Infinity CLOUDLINE S12 PRO, Quiet 12” Inline Duct Fan with 10-Speed Controller, EC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics - Image 1](https://m.media-amazon.com/images/I/61saOy+akkL.jpg) ![AC Infinity CLOUDLINE S12 PRO, Quiet 12” Inline Duct Fan with 10-Speed Controller, EC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics - Image 2](https://m.media-amazon.com/images/I/61qh0zlE6ML.jpg) ![AC Infinity CLOUDLINE S12 PRO, Quiet 12” Inline Duct Fan with 10-Speed Controller, EC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics - Image 3](https://m.media-amazon.com/images/I/61B4-3IcMGL.jpg) ![AC Infinity CLOUDLINE S12 PRO, Quiet 12” Inline Duct Fan with 10-Speed Controller, EC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics - Image 4](https://m.media-amazon.com/images/I/61B8EwuR7nL.jpg) ![AC Infinity CLOUDLINE S12 PRO, Quiet 12” Inline Duct Fan with 10-Speed Controller, EC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics - Image 5](https://m.media-amazon.com/images/I/71CDBlYtPJL.jpg) ## Questions & Answers **Q: hello,i gonna use it in my grow room. do i really need the carbon filter while using this fan? if yes,can i use other brands carbon filter with it?** A: This machine just blows air in or out. The carbon filter get rid of smell. Two different things. Yes, you can use a different filter mix and match equipment. **Q: Is there no option to buy 2 fans and 1 controller?** A: No there is no option for buying 2 fans and 1 controller. If you do buy 2 fans I would get 2 s models and buy the controller separately. Saves a little bit of money and get the same results! **Q: I have read the reviews discussing the sizing issues with the inlet/outlet sizes being more 12.25 instead of 12. Has this issue been corrected?** A: If your trying to put that 12 inch flexible ducting you basically cant and just have to get aluminum tape. Its not that big of an issue though. With the tape it stays put. **Q: Can this fan be used to exhaust kitchen hoods (e.g. inline connected to a hood liner)?** A: I would not use such an expensive fan for a kitchen exhaust hood. The condensation and grease steam alone would gum it up and ruin it. They sell hood exhaust fans ## Customer Reviews ### ⭐⭐ Lazy product *by S***N on 27 May 2026* I bought this to replace an existing failed 12" inline boost fan for a home ventilation system. I'm going to be quite critical because I'm comparing against another EC fan. A summary of my review is that I think this is quite a lazily designed product to be demanding such a high price (£350). More professional options are not that much more expensive, but offer far greater quality. This seems to be an example of a compact EC motor being slapped into a shell designed for a bulky AC motor. The benefits of a smaller, energy-efficient motor are not taken advantage of. First off, it does work and sort of meets some of the basic claims. It can be controlled by PWM - if you replace the silly USB-C cord (I take personal offence to this inappropriately used connector for 10-volt PWM signals). I connected this up to a Shelly for WiFi speed control. It does move a lot of air at the top speed and can be slowed down to a very quiet level. The next thing anyone will note is how loud it is. The volume at full-speed is expected, and it can run very quietly at low RPMs. However, everything in-between is kind of closer to the louder-end of what I hope and expected. While installing, I found the 12" diameter to be a bit of a loose claim (heh). This doesn't follow the normal conventions expected from other 12" ducting products. Specifically, the outer diameter of the inlet/outlet is 300mm rather than the usual 312-315mm, this means that existing 12" ducting was more than just very loose. It's a good thing that I decided to replace the mains cord, because it seemed the cable grip had badly crushed the cord. These sorts of fans are always marketed for hydroponics (hmm...), but one thing I noticed quite taking a closer look was the general lack of sealing. If it does meet IP44 specs, it does it very barely. I don't expect this to survive much condensing humidity. ### ⭐⭐⭐⭐⭐ Fantastic deal *by A***H on 23 May 2026* Quiet, powerful exhaust fan. Using it for a whole house circulation. The remote can be interfaced with a microcontroller generating a pwm signal, for extremely powerful and customized control. ### ⭐⭐⭐⭐⭐ They move a lot of air and are reliable. *by P***R on 29 April 2025* This is my second one of these (12"). Not because the first one broke but because I had an additional project. They are relatively quiet and push a lot of air. One has been running an exhaust for my metal shop for over 3 years and still works flawlessly. The second is running a DIY air cleaning system that I put in my woodshop -- barely hear it in the attic and, again, pushes a ton of air. Recommend. ## Frequently Bought Together - AC Infinity CLOUDLINE PRO S12, Quiet 12” Inline Duct Fan with Speed Controller - EC Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics - AC Infinity CLOUDLINE PRO S10, Quiet 10” Inline Duct Fan with Speed Controller - EC Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics - AC Infinity CLOUDLINE S8 PRO, Quiet 8” Inline Duct Fan with 10-Speed Controller, EC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/599900362-ac-infinity-cloudline-s12-pro-quiet-12-inline-duct-fan](https://www.desertcart.be/products/599900362-ac-infinity-cloudline-s12-pro-quiet-12-inline-duct-fan) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-07-27*