---
product_id: 531396534
title: "Automatic Duct Fan 4\", Inline Fan with Differential Pressure Switch, Air Vent Booster Fan for Industrial HVAC Ducting Ventilation Exhaust Systems"
brand: "ac infinity"
price: "AED 657"
currency: AED
in_stock: true
category: "Ac Infinity"
url: https://www.desertcart.ae/products/531396534-automatic-duct-fan-4-inline-fan-with-differential-pressure-switch
store_origin: AE
region: United Arab Emirates
---

# 230 CFM airflow Omnidirectional mounting 5-speed PWM EC motor Automatic Duct Fan 4", Inline Fan with Differential Pressure Switch, Air Vent Booster Fan for Industrial HVAC Ducting Ventilation Exhaust Systems

**Brand:** ac infinity
**Price:** AED 657
**Availability:** ✅ In Stock

## Summary

> 💨 Elevate your airflow game—smart, silent, and unstoppable!

## Quick Answers

- **What is this?** Automatic Duct Fan 4", Inline Fan with Differential Pressure Switch, Air Vent Booster Fan for Industrial HVAC Ducting Ventilation Exhaust Systems by ac infinity
- **How much does it cost?** AED 657 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ae](https://www.desertcart.ae/products/531396534-automatic-duct-fan-4-inline-fan-with-differential-pressure-switch)

## 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

- • **Flexible Installation:** Mount in any direction—vertical, horizontal, or diagonal—for ultimate airflow versatility.
- • **Effortless Airflow Boost:** Automatically activates with pressure sensing—no manual tweaks needed.
- • **Whisper-Quiet Efficiency:** Operates at a low 60 dBA with energy-saving brushless motor technology.
- • **Industrial-Grade Durability:** Robust metal build with dual ball bearings designed for long-lasting performance.
- • **Precision Ventilation Control:** Five adjustable 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 both home and industrial HVAC systems. Featuring a smart differential pressure switch, it automatically activates based on airflow changes, eliminating manual adjustments. With five PWM-controlled speeds and omnidirectional mounting, it delivers precise, versatile airflow at 230 CFM while maintaining quiet operation at 60 dBA. Built with durable metal and dual ball bearings, this fan ensures reliable, energy-efficient ventilation in any duct setup.

## 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 |
| Best Sellers Rank | #55,641 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #27 in Hydroponic Ventilation Equipment #278 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 123 Reviews |
| Electric Fan Design | Blower |
| 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 | 9.25"D x 11.88"W x 9.11"H |
| 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 |
| Motor Type | Brushless |
| Mounting Type | Vent |
| Noise Level | 60 Decibels |
| Number of Blades | 10 |
| Number of Power Levels | 5 |
| Number of Speeds | 5 |
| Part Number | AC-BFP4 |
| Power Source | Corded Electric |
| 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 |
| Switch Type | Toggle |
| UPC | 819137023789 |
| Unit Count | 1.0 Count |
| Voltage | 12 Volts |
| Wattage | 31.44 watts |

## Product Details

- **Brand:** AC Infinity
- **Color:** Black
- **Electric fan design:** Blower
- **Mounting Type:** Vent
- **Power Source:** Corded Electric
- **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

![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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*Product available on Desertcart United Arab Emirates*
*Store origin: AE*
*Last updated: 2026-07-22*