---
product_id: 531396534
title: "AC Infinity Automatic Duct Fan 4\", Inline Fan with Differential Pressure Switch, Air Vent Booster Fan for Industrial HVAC Ducting Ventilation Exhaust Systems"
price: "£124.15"
currency: GBP
in_stock: true
url: https://www.desertcart.co.uk/products/531396534-ac-infinity-automatic-duct-fan-4-inline-fan-with-differential
store_origin: GB
region: United Kingdom
---

# 230 CFM airflow Auto pressure-activated 60 dBA noise level AC Infinity Automatic Duct Fan 4", Inline Fan with Differential Pressure Switch, Air Vent Booster Fan for Industrial HVAC Ducting Ventilation Exhaust Systems

**Price:** £124.15
**Availability:** ✅ In Stock

## Summary

> 💨 Elevate your airflow game—smart, silent, and seamless ventilation.

## Quick Answers

- **What is this?** AC Infinity Automatic Duct Fan 4", Inline Fan with Differential Pressure Switch, Air Vent Booster Fan for Industrial HVAC Ducting Ventilation Exhaust Systems
- **How much does it cost?** £124.15 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/531396534-ac-infinity-automatic-duct-fan-4-inline-fan-with-differential)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Energy-Smart Design:** Low 31.44W power draw with high static pressure for efficient HVAC support.
- • **Effortless Airflow Boost:** Automatically activates with pressure sensing—no manual switches needed.
- • **Omnidirectional Mounting:** Install vertically, horizontally, or diagonally for ultimate ducting flexibility.
- • **Whisper-Quiet Performance:** Advanced EC motor keeps noise at a discreet 60 dBA—work or relax undisturbed.
- • **Precision Ventilation Control:** Five PWM-controlled fan speeds for tailored airflow in any space.

## Overview

The AC Infinity Automatic Duct Fan 4" is a high-performance inline booster fan designed to enhance airflow in extended or complex duct systems. Featuring a differential pressure switch, it automatically activates based on duct pressure changes, eliminating manual controls. With five PWM-controlled speeds powered by an energy-efficient EC motor, it delivers up to 230 CFM airflow quietly at 60 dBA. Its versatile mounting options and durable metal construction make it ideal for both residential and industrial HVAC applications.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C2W14V6L |
| Air Flow Capacity | 230 Cubic Feet Per Minute |
| Best Sellers Rank | #111,184 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #370 in Household Ventilation Fans |
| Blade Length | 4 Inches |
| Brand | AC Infinity |
| Brand Name | AC Infinity |
| Collection Name | Home |
| Color | Black |
| Control Method | App |
| Controller Type | Button Control |
| Customer Reviews | 4.5 out of 5 stars 117 Reviews |
| Electric Fan Design | Blower |
| Electric fan design | Blower |
| Global Trade Identification Number | 00819137023789 |
| Included Components | Cord |
| Item Dimensions D x W x H | 9.25"D x 11.88"W x 9.11"H |
| Item Type Name | Duct Fan |
| Item Weight | 2.27 Kilograms |
| Material | Metal |
| Model Name | Automatic Duct Fan 4" |
| Model Number | AC-BFP4 |
| Noise Level | 60 Decibels |
| Number of Blades | 10 |
| Number of Speeds | 5 |
| Part Number | AC-BFP4 |
| Product Dimensions | 9.25"D x 11.88"W x 9.11"H |
| Recommended Uses For Product | Cooling, Exhausting |
| Room Type | Bathroom |
| Size | 4" |
| Special Features | Pressure Switch |
| Style | 10-Inch, Speed Controller |
| UPC | 819137023789 |
| Unit Count | 1.0 Count |
| Voltage | 12 Volts |
| Wattage | 31.44 watts |

## Product Details

- **Brand:** AC Infinity
- **Color:** Black
- **Controller Type:** Button Control
- **Electric fan design:** Blower
- **Material:** Metal
- **Product Dimensions:** 9.25"D x 11.88"W x 9.11"H
- **Recommended Uses For Product:** Cooling, Exhausting
- **Room Type:** Bathroom
- **Special Feature:** Pressure Switch
- **Style:** 10-Inch, Speed Controller

## Images

![AC Infinity Automatic Duct Fan 4", Inline Fan with Differential Pressure Switch, Air Vent Booster Fan for Industrial HVAC Ducting Ventilation Exhaust Systems - Image 1](https://m.media-amazon.com/images/I/51DcPrezDUL.jpg)

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.co.uk/products/531396534-ac-infinity-automatic-duct-fan-4-inline-fan-with-differential](https://www.desertcart.co.uk/products/531396534-ac-infinity-automatic-duct-fan-4-inline-fan-with-differential)

---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-18*