--- product_id: 538827349 title: "AC Infinity Automatic Booster Duct Fan 4\" Inline Fan with Pressure Switch" brand: "ac infinity" price: "COP 1650806" currency: COP in_stock: true category: "Ac Infinity" url: https://www.desertcart.co/products/538827349-ac-infinity-automatic-booster-duct-fan-4-inline-fan-pressure store_origin: CO region: Colombia --- # Auto-activation via pressure switch 5-speed PWM EC motor control 230 CFM airflow power AC Infinity Automatic Booster Duct Fan 4" Inline Fan with Pressure Switch **Brand:** ac infinity **Price:** COP 1650806 **Availability:** ✅ In Stock ## Summary > 🌪️ Elevate your airflow game—smart, silent, and unstoppable! ## Quick Answers - **What is this?** AC Infinity Automatic Booster Duct Fan 4" Inline Fan with Pressure Switch by ac infinity - **How much does it cost?** COP 1650806 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/538827349-ac-infinity-automatic-booster-duct-fan-4-inline-fan-pressure) ## 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 - • **Durable & Compact:** Sleek 4-inch metal design with dual ball bearings ensures long-lasting, reliable performance. - • **Quiet Yet Powerful:** Delivers robust 230 CFM airflow at a whisper-quiet 60 dBA—comfort without distraction. - • **Versatile Installation:** Differential pressure switch supports any mounting position to optimize directional airflow. - • **Effortless Airflow Boost:** Automatically activates with pressure changes—no manual tweaks needed. - • **Precision Ventilation Control:** Five adjustable fan speeds powered by advanced PWM-controlled EC motor for tailored airflow. ## Overview The AC Infinity Automatic Duct Fan 4" is a high-performance inline ventilation booster designed for industrial HVAC systems. Featuring a differential pressure switch for automatic activation, five-speed PWM-controlled EC motor for precise airflow management, and a compact 4-inch metal build, it delivers 230 CFM airflow quietly at 60 dBA. Its versatile mounting and durable dual ball bearings make it the go-to choice for efficient, hassle-free duct ventilation. ## Description Product DescriptionAn automatic booster fan designed to improve airflow delivery in longer ductwork for more effective heating or cooling in home or industrial settings. Features a highly intuitive differential pressure switch that senses changes in your ducting to automatically operate its on/off activation. It also allows for mounting in any direction, making it possible to direct airflow vertically, horizontally, or diagonally. The inline duct fan also features five speeds powered by PWM controls that can generate precise airflow levels. This, combined with its flexibility in installation, provides total ventilation control in extended ducting and other difficult-to-reach spaces.Automatic Pressure SensingThe fan pressure switch delivers automatic activation capabilities to boost your heating or cooling on-demand, eliminating the need for manual adjustments. This is achieved by detecting pressure change in your ducting and turning it on whenever your home appliance is on. The smart sensor also allows you to omnidirectionally mount the duct fan for enhanced airflow versatility in existing HVAC systems.Quiet and Energy Efficient DesignThe automatic duct fan features a next-gen EC motor that powers quiet and energy-efficient performance. This innovative motor is controlled with PWM technology to ensure smooth performance while minimizing heat and noise levels. Its mixed flow design gives this vent booster fan a high static pressure rating to enhance airflow in HVAC applications with restricted air movement. This includes industrial settings like manufacturing and processing plants, as well as home residential settings such as bathroom ventilation and central air and heating systems. ## Features - Inline duct fan for boosting airflow in ducting and vent systems to ensure heating or cooling delivery. - Automatically activates the ventilation fan by detecting pressure change to eliminate manual adjusting. - Differential pressure switch supports mounting in any position to improve directional airflow versatility. - Features five fan speed levels powered by the PWM-controlled EC motor for more precise ventilation. - Duct Size: 4” | Dim: 6.9 x 11.9 x 7.4 in. | Airflow: 230 CFM | Noise: 60 dBA | Bearings: Dual Ball ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C2W14V6L | | Air Flow Capacity | 230 Cubic Feet Per Minute | | Blade Length | 4 Inches | | Brand Name | AC Infinity | | Color | Black | | Controller Type | Button Control | | Customer Reviews | 4.5 4.5 out of 5 stars (143) | | Electric Fan Design | Blower | | Global Trade Identification Number | 00819137023789 | | Included Components | Cord | | Indoor Outdoor Usage | Indoor | | Installation Type | Inline | | Is Product Cordless | No | | Item Dimensions D x W x H | 23.5D x 30.2W x 23.1H centimeters | | Item Type Name | Duct Fan | | Item Weight | 2.27 Kilograms | | Manufacturer | AC Infinity | | Material | Metal | | Model Name | Automatic Duct Fan 4" | | Model Number | AC-BFP4 | | Mounting Type | Any Position | | Noise Level | 60 Decibels | | Number of Blades | 10 | | Number of Packs | 1 | | Number of Power Levels | 5 | | Number of Speeds | 5 | | Part Number | AC-BFP4 | | Recommended Uses For Product | Cooling | | Room Type | Bathroom | | Size | 4" | | Special Features | Pressure Switch | | Style | 10-Inch, Speed Controller | | UPC | 819137023789 | | Unit Count | 1 Count | | Voltage | 12 Volts | | Wattage | 31.44 watts | ## Product Details - **Brand:** AC Infinity - **Colour:** Black - **Controller type:** Button Control - **Electric fan design:** Blower - **Mounting type:** Any Position - **Product dimensions:** 23.5D x 30.2W x 23.1H centimeters - **Recommended uses for product:** Cooling - **Room type:** Bathroom - **Special features:** Pressure Switch - **Style:** 10-Inch, Speed Controller ## Images ![AC Infinity Automatic Booster Duct Fan 4" Inline Fan with Pressure Switch - Image 1](https://m.media-amazon.com/images/I/51DcPrezDUL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Frequently Bought Together - AC Infinity Automatic Duct Fan 4", Inline Fan with Differential Fan Pressure Switch, Air Vent Booster Fan for Industrial HVAC Ducting Ventilation Exhaust Systems - AC Infinity Duct Adapter, 6” to 4” Ducting Reducer Increaser Cone for Grow Tent Bathroom Kitchen Ventilation Systems - 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? - 🛒 **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.co/products/538827349-ac-infinity-automatic-booster-duct-fan-4-inline-fan-pressure](https://www.desertcart.co/products/538827349-ac-infinity-automatic-booster-duct-fan-4-inline-fan-pressure) --- *Product available on Desertcart Colombia* *Store origin: CO* *Last updated: 2026-11-11*