How to Choose the Right Ventilation Fan for Confined and Hazardous Spaces

Confined Space, Personal Protective Equipment, Turnarounds

Callum Brown
8 Jul 2025

How to Choose the Right Ventilation Fan for Confined and Hazardous Spaces

Need help choosing the right Ramfan fan for confined or hazardous spaces?
This quick guide explains how to pick the right ventilation solution, whether you need ATEX-certified fans, battery-powered options, or ducted airflow systems — all available from Frontline Safety through our partnership with Wolf Safety.

When working in confined spaces or hazardous environments, proper ventilation isn’t just recommended — it’s essential for safety and compliance. Whether you’re extracting dangerous gases or simply circulating fresh air, choosing the right ventilation fan can make all the difference.

At Frontline Safety, we supply Ramfan portable ventilators through our partnership with Wolf Safety. Ramfan products are trusted globally for their robust performance in some of the most challenging industrial environments.

In this short guide, we’ll walk you through what to consider when selecting the right fan for your specific application so you can work smarter, safer, and with total confidence.

Why Proper Ventilation Is Essential

Confined spaces and hazardous areas are often high-risk environments with limited airflow. These spaces can quickly become dangerous due to the build-up of toxic gases, reduced oxygen levels, or the presence of flammable vapours.

Proper ventilation is critical to:

Ensure breathable air for workers entering tight or enclosed spaces
Extract hazardous fumes or airborne particles before and during operations
Prevent heat build-up in enclosed areas
Support compliance with health and safety regulations

Without the right fan setup, even routine tasks can become unsafe. That’s why selecting the right equipment is a key step in preparing any confined space or hazardous area.

Choosing the Right Fan: What to Consider

Confined Spaces: These often need compact axial fans with high airflow to move large volumes of air quickly.

Hazardous Locations: These require certified equipment designed to prevent ignition in explosive atmospheres. Look for ATEX-rated or intrinsically safe fans.

Air movement is measured in CFM (cubic feet per minute). The larger the space or the more contaminated the air, the more airflow you’ll need.

Consider whether you need to extract contaminated air or push clean air in. Some setups require both.

Ramfan fans are engineered for powerful, efficient air movement. Their impeller and motor systems are matched to maximise performance, including when ducting is attached.

Electric Fans: Reliable and easy to use in safe zones. Certified models are available for use in hazardous areas.

Battery-Powered Fans: Great for mobility and remote locations. The EX150Li is an intrinsically safe example.

Pneumatic Fans: Ideal for environments where electricity is not suitable due to ignition risks.

Fans like the Ramfan UB20xx can be paired with flexible ducting to direct airflow exactly where it’s needed.

Ramfan’s Quick-Couple™ system allows fast, reliable connections to ductwork.

Units with PowerStream® airflow straighteners offer deeper penetration into structures and more flexible fan positioning.

Look for ATEX, IECEx, or CE certifications to ensure compliance with hazardous zone safety regulations.

Whether you’re working in a tight crawlspace, an underground chamber, or a volatile Zone 1 hazardous area, there’s a Ramfan model designed for the job.

Here are just a few examples from our current range:

VF-UB20 - A compact and durable 8" axial fan, perfect for general-purpose ventilation in confined spaces. Lightweight, stackable, and duct-ready.

VF-UB20xx - An enhanced version of the UB20, designed for deeper airflow reach with PowerStream® attachments. Ideal when airflow direction and ducting flexibility are essential.

VF-EFi75xx - A powerful, EX-rated 12" fan certified for hazardous environments. Built to perform in Zone 1 areas where explosion risks exist. Rugged and reliable for demanding industrial use.

Many models are compatible with flexible ducting for intake or extraction and feature Quick-Couple connectors for fast setup. With PowerStream technology, Ramfan units deliver controlled, focused airflow that penetrates deeper into structures, offering better flexibility and performance.

By choosing Ramfan through Frontline Safety, you’re getting:

Trusted, certified safety equipment
Direct access to expert advice
A UK-based supplier with deep experience in confined space and hazardous location safety

Whether you're preparing for routine maintenance or planning a high-risk entry, choosing the right ventilation setup is critical to doing the job safely and efficiently. If you're unsure which Ramfan model suits your environment or application, our team is here to help.

Get in touch with our expert sales team today to discuss your requirements. We’ll help you find the best fan for your needs and ensure you’re fully equipped for the task ahead.