Portable Air Cooling for Event Tents and Temporary Spaces

Temporary event spaces often present challenges in warm weather conditions. Event tents, exhibition stands, outdoor sales areas and pop-up environments can heat up quickly in direct sunlight, and traditional air conditioning is usually not a viable option in these types of spaces. What is needed instead is a portable solution, quick to deploy and powerful enough to work in open or semi-open environments.

Rex Nordic air coolers are designed to efficiently cool large areas, with minimal effort and no permanent installation required. The smallest model cools areas up to 120 m², the mid-size model up to 250 m², and the largest model up to 500 m². The cooling solution can be scaled to different room sizes either by using multiple smaller units or by combining models of different capacities within the same space.

Sizing the Cooling Solution for Event Environments

In event spaces, cooling is typically most effective when implemented in one of the following ways:

• with several smaller units, when the space includes multiple activity areas or structures that affect airflow
• with larger-capacity units, when the space is open, high-ceilinged or hall-like

The objective is not to chill a sealed indoor environment, but to improve temperature conditions and airflow across a wide area, helping guests and staff remain comfortable for longer and ensuring a pleasant experience even in hot weather.

Evaporative Cooling Performance Is Based on Water

Rex Nordic air coolers can be used as high-performance fans, but the best cooling efficiency is achieved when the unit operates using evaporative cooling with water.

Water supply can be arranged in two ways:

• the unit can be connected directly to a water line, enabling continuous operation
• or water can be added manually to the unit’s internal water tank

The system does not require refrigerants or fixed installation, which makes the coolers ideal for temporary and mobile environments.

Typical Use Cases

During summer and early autumn, Rex Nordic air coolers are commonly used in:

• event tents and private celebrations
• corporate events and customer days
• trade fair and exhibition stands
• food-service and catering areas
• backstage and staff working areas

A key advantage is that the same unit can easily be moved from one location to another and reused across multiple events.

Case: Flexible Cooling in a Summer Wedding Tent Using Two REX14000 Units

A large outdoor summer wedding was held in a 200 m² event tent, including a full seating area, dance floor and a high number of guests. Due to lighting, activity and crowd density, the temperature inside the tent was expected to rise to an uncomfortable level as the evening progressed.

Instead of relying on a single larger unit, the organiser chose to install two REX14000 air coolers. Each unit is capable of cooling up to 120 m², making the combined capacity well-suited for the tent size. The units were positioned on opposite sides of the tent, allowing airflow to cross the space evenly and creating more consistent cooling throughout the venue.

Cooling was implemented by connecting both units directly to a water supply, ensuring stable performance during the entire event.

While a single REX25000 could technically have handled a tent of this size, using two smaller units allowed better airflow control, more flexible placement and more even cooling distribution across different activity zones within the tent.

During the evening, the tent remained pleasantly cool, guests stayed inside longer and the dance floor remained in active use. Feedback highlighted improved comfort and a more enjoyable atmosphere, leading the organiser to decide to use the same setup for future events.

Portable Cooling for Events – A Practical Solution for Temporary Spaces

Temporary event venues are always a balance between flexibility, usability and environmental conditions. A solution that can be moved, scaled to the space and deployed quickly provides a practical way to improve event comfort without heavy infrastructure.

Rex Nordic air coolers — REX14000, REX25000 and REX48000 — are designed precisely for these environments: they deliver comfortable conditions in large spaces when the event is temporary, but the experience still needs to feel consistently high-quality for every guest.