Yes, we offer for hire the VENTEX® 300P ATEX IECEx axial fan, which is certified for both electrical and non-electrical safety to operate in Zone 1 and Zone 2 hazardous environments.

Our axial fans are ideal for:

• High-volume ventilation, e.g. in tunnels, basements or top-down construction projects
• Extracting or supplying air in large enclosures, warehouses, or during top-down construction
• Confined space ventilation
• Creating negative pressure in conjunction with a filtration systems for dust or fume control

Yes, we have portal axial fans for hire. This includes VENTEX® Axial Fan 300P which weighs less than 15kg and has a carry handle for easy transport. We also have

VENTEX® Axial Fan 450M which has castor wheels so it can be rolled into position and easily moved around as a project progresses.

Our VENTEX® Axial Fan 1250S‑HP high airflow industrial fan can provide up to 86,000m³/hr airflow

It depends on several factors, including the type of environment, the size of the workspace, the activities being carried out, and the nature of the contaminants, such as dust, fumes, diesel engine exhaust emissions, or gases.

In general, there are two main approaches to ventilation for controlling airborne contaminants.

Positive pressure ventilation which introduces a steady flow of clean air into the workspace, displacing contaminated air.

Extraction of contaminants at a specific source via a local exhaust ventilation (LEV) system.

Often, a combination of both methods works best, using an extraction system with a capture hood to remove contaminants at the source, while simultaneously supplying clean air to dilute any remaining pollutants in the workspace.

In section 3 of the government guidance titled 'Transmission characteristics and principles of infection prevention and control', Public Health England explain that;

"A single air change is estimated to remove 63% of airborne contaminants, after 5 air changes less than 1% of airborne contamination is thought to remain".

The number of air changes required will depend on the environment you are working in and the activities you are conducting; the higher the airborne risk, the more air changes required.

In sensitive environments, Public Health England recommends 6 - 12 air changes per hour.

Typically, Centrifugal fans are the best fans to use for basement ventilation, however we have also used our largest high power Axial fans to create a fresh air ventilation system, forcing fresh air into many top-down construction basement projects. Each basement project is unique, with different activities, access points, depth and volume of excavation etc, and therefore requires a tailored approach.

Centrifugal fans are often the preferred option as they can be situated outside the tunnel, ensuring that they do not get in the way or block access for vehicles and machinery, however, we have also supplied large, high power axial fans, for several tunnel projects. Please get in touch to discuss your specific requirements with a hazard control expert.

Axial fans are ideal for moving large volumes of air over short distances, while centrifugal fans excel at maintaining high pressure across longer duct runs. Although centrifugal fans generally have a lower airflow, they produce a more consistent flow, resulting in significantly higher static efficiency. Ultimately, the choice between installing an axial fan or centrifugal fan depends on the specific requirements of the project.

An Axial fan has its motor located in the middle of the fan casing, and the airflow passes around it. A centrifugal fan has its motor located to the side of the fan casing, with a ‘snail’ shaped impeller. Typically a centrifugal fan will provide less airflow but at higher pressure than an axial fan with the same size motor.