---
product_id: 463526108
title: "DenwennyDenwenny IP55 Grade 540CFM Crawl Space Ventilation Fans with Dehumidistat, 8.7inch Basement Vent Fans with Isolation Mesh, Freeze Protection Thermostat Ventilator Fan for Crawlspace, Attic, Garage"
brand: "denwenny"
price: "€ 372.31"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.sk/products/463526108-denwennydenwenny-ip55-grade-540cfm-crawl-space-ventilation-fans-with-dehumidistat
store_origin: SK
region: Slovakia
---

# 540 CFM airflow Isolation mesh IP55 waterproof DenwennyDenwenny IP55 Grade 540CFM Crawl Space Ventilation Fans with Dehumidistat, 8.7inch Basement Vent Fans with Isolation Mesh, Freeze Protection Thermostat Ventilator Fan for Crawlspace, Attic, Garage

**Brand:** denwenny
**Price:** € 372.31
**Availability:** ✅ In Stock

## Summary

> 🌬️ Elevate Your Space: Breathe Fresh, Live Fresh!

## Quick Answers

- **What is this?** DenwennyDenwenny IP55 Grade 540CFM Crawl Space Ventilation Fans with Dehumidistat, 8.7inch Basement Vent Fans with Isolation Mesh, Freeze Protection Thermostat Ventilator Fan for Crawlspace, Attic, Garage by denwenny
- **How much does it cost?** € 372.31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/463526108-denwennydenwenny-ip55-grade-540cfm-crawl-space-ventilation-fans-with-dehumidistat)

## Best For

- denwenny enthusiasts

## Why This Product

- Trusted denwenny brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Breathe Easy:** Transform your damp crawl spaces into a fresh air haven!
- • **Smart Control:** Built-in dehumidistat and freeze protection for year-round efficiency.
- • **Whisper Quiet:** Enjoy peace of mind with noise levels under 40dB.
- • **Reliable Support:** 2-year warranty and dedicated customer service at your fingertips.
- • **Versatile Installation:** Customizable faceplate for a perfect fit in any foundation.

## Overview

The Denwenny IP55 Grade 540CFM Crawl Space Ventilation Fan is designed to enhance air circulation in damp areas like crawl spaces, basements, and garages. With a powerful airflow of 540 CFM, it features a built-in dehumidistat and freeze protection thermostat for optimal humidity control. The fan is IP55 rated for water resistance and includes an isolation mesh to keep unwanted pests out. Measuring 15 x 10 x 3.1 inches, it operates quietly at under 40dB and comes with a 2-year warranty for peace of mind.

## Description

Full description not available

## Features

- 【Functions & Applications】High-Flow Powered Ventilator Fan for damp crawl spaces，Basement, ttic and Garage to reduce Humidity. It can increase air circulation to stop condensation and wood rot. Also, used for exhausting vent radon gas, treating wood gases and odors, and preventing them from entering into living spaces.
- 【Key Features】Built-in dehumidistat and Freeze Protection Thermostat. The Dehumidistat control will not operate if the freeze protection thermostat senses low outdoor temperatures.
- 【Main Characteristics】√ IP55 rated fans, Be Stable working in humidity Crawl space. √ Isolation Mesh，Comes with a fence to stop reptiles from crawling into your living space.
- 【Product Detail and Installation】Air Out; 15 x 10 x 3.1 inches; Capacity: 540 CFM; 115 Vac ~ 50/60 Hz. 0.51 Amps; Noise: <40dB. When installed, Faceplate can be trimmed to match non-standard foundation openings.
- 【Warranty】Valid for 2 years warranty from purchase date. Denwenny's customer support. The team is always one email away.

## Images

![DenwennyDenwenny IP55 Grade 540CFM Crawl Space Ventilation Fans with Dehumidistat, 8.7inch Basement Vent Fans with Isolation Mesh, Freeze Protection Thermostat Ventilator Fan for Crawlspace, Attic, Garage - Image 1](https://m.media-amazon.com/images/I/81XH78yOx3L.jpg)
![DenwennyDenwenny IP55 Grade 540CFM Crawl Space Ventilation Fans with Dehumidistat, 8.7inch Basement Vent Fans with Isolation Mesh, Freeze Protection Thermostat Ventilator Fan for Crawlspace, Attic, Garage - Image 2](https://m.media-amazon.com/images/I/817ryoYAXfL.jpg)
![DenwennyDenwenny IP55 Grade 540CFM Crawl Space Ventilation Fans with Dehumidistat, 8.7inch Basement Vent Fans with Isolation Mesh, Freeze Protection Thermostat Ventilator Fan for Crawlspace, Attic, Garage - Image 3](https://m.media-amazon.com/images/I/81ODy654j1L.jpg)
![DenwennyDenwenny IP55 Grade 540CFM Crawl Space Ventilation Fans with Dehumidistat, 8.7inch Basement Vent Fans with Isolation Mesh, Freeze Protection Thermostat Ventilator Fan for Crawlspace, Attic, Garage - Image 4](https://m.media-amazon.com/images/I/81-1xSGGkHL.jpg)
![DenwennyDenwenny IP55 Grade 540CFM Crawl Space Ventilation Fans with Dehumidistat, 8.7inch Basement Vent Fans with Isolation Mesh, Freeze Protection Thermostat Ventilator Fan for Crawlspace, Attic, Garage - Image 5](https://m.media-amazon.com/images/I/710MGIR9NoL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Built like a tank
  

*by M**** on Reviewed in the United States 🇺🇸 on November 2, 2022*

I initially ordered some fancier digital model, but returned it and opted for this one instead.  We live in a very dry area but have still had some ground termite problems.  Was advised to install a fan in the foundation crawlspace.  This fan was installed in crawlspace and when facing the controls (under the house) blows the air OUT of the crawlspace.  This is what we needed to try and keep the space better ventilated and drier.

### ⭐⭐⭐⭐⭐ 







  
  
    Great value
  

*by C***P on Reviewed in the United States 🇺🇸 on November 28, 2022*

Crawl space

### ⭐⭐⭐⭐⭐ 







  
  
    Easy to mount, Moves air, humidistat working fine
  

*by J***D on Reviewed in the United States 🇺🇸 on September 7, 2022*

I bought this crawl space vent fan to pull air out of crawl space. I have one section of my house which is just a couple hundred square feet. The air flow is perfect. The flow is sufficient and it has a big fan. The unit is very easy to mount and it has over sized flange with a long hole for setting screws. I mounted it on the wall of the crawl space. Overall i am impressed with the fan, mounting and flange. The humidistat is good and works great!

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-01-29*