--- product_id: 725708395 title: "AC Infinity CLOUDLINE PRO S4 Quiet 4\" Inline Duct Fan with Speed Controller Heating/Cooling Fan Promotes Cooling Cultivation Tent Hydroponic Cultivation" brand: "ac infinity" price: "MX$941141" currency: MXN in_stock: true reviews_count: 6 url: https://www.desertcart.mx/products/725708395-ac-infinity-cloudline-pro-s4-quiet-4-inline-duct-fan store_origin: MX region: Mexico --- # 28 dBA ultra-quiet 205 CFM airflow 10-speed PWM controller AC Infinity CLOUDLINE PRO S4 Quiet 4" Inline Duct Fan with Speed Controller Heating/Cooling Fan Promotes Cooling Cultivation Tent Hydroponic Cultivation **Brand:** ac infinity **Price:** MX$941141 **Availability:** βœ… In Stock ## Summary > 🌿 Quiet power, precise controlβ€”cool smarter, not harder. ## Quick Answers - **What is this?** AC Infinity CLOUDLINE PRO S4 Quiet 4" Inline Duct Fan with Speed Controller Heating/Cooling Fan Promotes Cooling Cultivation Tent Hydroponic Cultivation by ac infinity - **How much does it cost?** MX$941141 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/725708395-ac-infinity-cloudline-pro-s4-quiet-4-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 - β€’ **Whisper-Quiet Power:** Experience powerful 205 CFM airflow with barely-there 28 dBA noiseβ€”perfect for focused work or stealthy cultivation. - β€’ **Energy-Smart EC Motor:** Mixed flow design with EC-driven motor ensures top-tier energy efficiency without sacrificing performance. - β€’ **Precision Speed Control:** 10-speed PWM manual controller lets you dial in the exact airflow you need, maximizing efficiency and comfort. - β€’ **Plug & Play Installation:** Comes complete with AC adapter, hardware, and clear instructions for hassle-free setupβ€”get running in no time. - β€’ **Versatile Climate Control:** Ideal for cultivation tents, hydroponics, or AV racks, this fan promotes optimal cooling, circulation, and odor elimination. ## Overview The AC Infinity CLOUDLINE PRO S4 is a 4-inch inline duct fan delivering 205 CFM airflow at an ultra-quiet 28 dBA noise level. Featuring a 10-speed PWM controller and an energy-efficient EC motor, it offers precise ventilation control ideal for cultivation tents, hydroponic setups, and AV cooling. This all-in-one kit includes everything needed for quick installation, making it a top choice for professionals seeking silent, efficient climate management. ## Description desertcart.co.jp: AC Infinity CLOUDLINE PRO S4 Quiet 4" Inline Duct Fan with Speed Controller Heating/Cooling Fan Promotes Cooling Cultivation Tent Hydroponic Cultivation : Computers Review: γƒ‘γƒ―γƒΌζ„Ÿγ―γ€γ©γ†γ‹γͺ？ γ¨γ€γ„γ£γŸζ„Ÿγ˜γ§γ™γ€‚ Review: These fans ( I bought 2 - 4" and a 6") are amazing, the process was slick and efficient, it came in its original packaging and the seller sent them to desertcart ASAP!!! I will most def buy from them again, in fact I probably need 2 more, sooner than later. ## Features - The cultivation tent provides quiet ventilation, heating/cooling effect, air circulation, odor elimination, and even cooling the AV rack - Equipped with a 10-speed manual controller using PWM. See the T-Series for temperature and humidity control - Mixed flow (combination of different airflow) and EC driven motor for truly quiet and energy efficient performance - This kit includes an AC power adapter, instruction manual, and all necessary hardware for installation - Duct Diameter: 4" | Dimensions: 6.9" x 11.9" x 7.4" (17.53cm x 30.23cm x 18.8cm) | Airflow: 205 CFM | Noise: 28 dBA | Bearings: Dual Ball ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07JB292JC | | Air Flow Capacity | 205 Cubic Feet Per Minute | | Amazon Bestseller | #213,958 in Computers ( See Top 100 in Computers ) #1,731 in Computer Case Fans | | Blade Length | 7.4 Inches | | Brand Name | AC Infinity | | Cable Length | 144 むンチ | | Control Method | Remote, Touch | | Controller Type | Pull Chain Control | | Customer Reviews | 4.7 4.7 out of 5 stars (3,896) | | Electric Fan Design | Exhaust Fan | | Global Trade Identification Number | 00819137020290 | | Included Components | Cord | | Item Weight | 2.61 Kilograms | | Model Number | CLOUDLINE S4 | | Mounting Type | Flush Mount | | Noise Level | 28 Decibels | | Number of Blades | 10 | | Number of Speeds | 8 | | Power Source | AC | | Room Type | Bathroom | | Special Features | Quiet | | Style | Industrial | | UPC | 819137020290 | | Unit Count | 1.0 Count | | Voltage | 240 Volts | | Wattage | 21 W | ## Product Details - **Brand:** AC Infinity - **Controller Type:** Pull Chain Control - **Electric fan design:** Exhaust Fan - **Mounting Type:** Flush Mount - **Noise Level:** 28 Decibels - **Number of Speeds:** 8 - **Power Source:** AC - **Room Type:** Bathroom - **Special Feature:** Quiet - **Style:** Industrial ## Images ![AC Infinity CLOUDLINE PRO S4 Quiet 4" Inline Duct Fan with Speed Controller Heating/Cooling Fan Promotes Cooling Cultivation Tent Hydroponic Cultivation - Image 1](https://m.media-amazon.com/images/I/6117XGasixL.jpg) ![AC Infinity CLOUDLINE PRO S4 Quiet 4" Inline Duct Fan with Speed Controller Heating/Cooling Fan Promotes Cooling Cultivation Tent Hydroponic Cultivation - Image 2](https://m.media-amazon.com/images/I/61qh0zlE6ML.jpg) ![AC Infinity CLOUDLINE PRO S4 Quiet 4" Inline Duct Fan with Speed Controller Heating/Cooling Fan Promotes Cooling Cultivation Tent Hydroponic Cultivation - Image 3](https://m.media-amazon.com/images/I/61B4-3IcMGL.jpg) ![AC Infinity CLOUDLINE PRO S4 Quiet 4" Inline Duct Fan with Speed Controller Heating/Cooling Fan Promotes Cooling Cultivation Tent Hydroponic Cultivation - Image 4](https://m.media-amazon.com/images/I/61B8EwuR7nL.jpg) ![AC Infinity CLOUDLINE PRO S4 Quiet 4" Inline Duct Fan with Speed Controller Heating/Cooling Fan Promotes Cooling Cultivation Tent Hydroponic Cultivation - Image 5](https://m.media-amazon.com/images/I/71J9tAQeuEL.jpg) ## Questions & Answers **Q: What is the max temp of use for this fan? i see you said 240f, but all other manufacturers with plastic impellers say max temp 140f. are you certain?** A: Always stay a minimum of 25% below specified temp. At minimum they can warp and and motor performance would be affected **Q: If powered from a switched outlet, will it remember the last speed setting or does that require constant power?** A: Morning RS, the S4 will not remember your fan speed. It’s a manual setting only. I also have a T4 with a smart controller and it does remember and can be set to auto for heat and humidity. The T4 is for auto exhaust and S4 is intake. If it is your only fan go with the T4. Also, if you have more than 200sf to ventilate go directly to the T6. The are very quiet which is important as my room is under a bedroom. Hope this helps. **Q: How well does this work with a carbon filter?** A: I have a 350 Cfm Coco/Carbon Fiber filter that I place on the Exit side of my application. I have tested the filter on both the intake and the exit. I found these units Push much better than they Pull. I do have to increase the power by 10% when I install the exit filter, but it's not really an issue in my application. **Q: What is the best way to connect this to 12 or 24 volt system?** A: AC infinity, also looking for DC system compatibility off grid use with solar and lithium battery banks. Want to avoid DC->AC->DC to save wattage. I like that your fan design is efficient, but not in my case as the conversion costs wattage/heat. Ended up buying Atwood unit which does 12/24v which is no where near as nice a fan as this... ## Customer Reviews ### ⭐⭐⭐⭐ Review *by D***N on November 29, 2021* γƒ‘γƒ―γƒΌζ„Ÿγ―γ€γ©γ†γ‹γͺ？ γ¨γ€γ„γ£γŸζ„Ÿγ˜γ§γ™γ€‚ ### ⭐⭐⭐⭐⭐ Review *by U***H on March 12, 2026* These fans ( I bought 2 - 4" and a 6") are amazing, the process was slick and efficient, it came in its original packaging and the seller sent them to Amazon ASAP!!! I will most def buy from them again, in fact I probably need 2 more, sooner than later. ### ⭐⭐⭐⭐⭐ Review *by A***N on December 7, 2025* -It comes with the right power plug for EU(for 220v), even if the original images of the product don't show it(i think they are old), it looks like in the past wasn't the case because of others reviews, but now it comes with the right power plug -The cables are long, i mean, looong(power and controller cables), 2,5 meters for uis cable and 2,3 meters for power cable -I took photos of the manual only so you can see: +installation in different scenarios +cleaning +you can see its an actual useful manual +and the warranty part makes me feel like they really care -It comes with every screw, strap and little thing you need to install it in all possible scenarios(see the photos) -If you want to get noise test you can go to amazon.com(eeuu version) and see the videos on the reviews, my phone mic is trash so I wont do a noise test, but I can tell you that at level 1(it has 10 levels) makes 0 noise, at level 5 its the maximum I can deal with(and need) and above looks like its for scenarios where you really need to ventilate and dont care about the noise, so it gives you options, from 3 to 5 in my case is enough(I will never go above most likely) -I like the philosophy of "its yours, you have the control: you can fully open it(normal screws), you have all these intensity levels(from 1-"it barely moves" 2-"quiet and performant" to 3-"hold on to something, this airplane its gonna liftoff", you have a detailed manual, you have long cables, in the box you have all needed screws and little things" -btw the fan is exposed...not a bad thing, its made for people that think a bit ## Frequently Bought Together - AC Infinity CLOUDLINE PRO S4, Quiet 4” Inline Duct Fan with Speed Controller – EC Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics - AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 8-Feet Long for Heating Cooling Ventilation and Exhaust - AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 25-Feet Long for Heating Cooling Ventilation and Exhaust --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.mx/products/725708395-ac-infinity-cloudline-pro-s4-quiet-4-inline-duct-fan](https://www.desertcart.mx/products/725708395-ac-infinity-cloudline-pro-s4-quiet-4-inline-duct-fan) --- *Product available on Desertcart Mexico* *Store origin: MX* *Last updated: 2026-04-24*