Events

• 05

  NOV

  2026

  BESA World Ventil8 Day

  • Venue: London, UK

When is it?

5 November 2026

Where is it?

The Building Centre, London

The details:

The 2026 event will mark the fifth staging of an international awareness campaign which was created to promote the role of building ventilation in supporting health, well-being, and productivity. It was founded by a coalition of scientists, academics, engineering bodies and environmental activists.

All share the overarching ambition of demonstrating how ventilation can make a healthier and more sustainable world by reducing exposure to air pollutants and infectious diseases, which aids human productivity, improves sleep, and reduces mould and damp in buildings.

The agenda for BESA’s World Ventil8 Day Exchange will also feature practical insights from across the UK industry with contributions from engineers, contractors, consultants, housing professionals, policy makers and industry leaders.

Topics include Smart Ventilation and Emerging Technology which will focus on the use of AI tools to improve indoor air quality (IAQ) and carry out tasks like continuous monitoring and ventilation performance assessment. There will be a series of short sharp ‘Pecha Kucha’ sessions covering industry standards and guides including: DW145, TR19, and DW154, and a detailed look at the whole life cost of improving ventilation and how to build a business case for retrofitting systems in buildings.

“Improving ventilation is the solution to a wide range of built environment quality problems,” said Adam Taylor, chair of BESA’s Indoor Air Quality group. “This year’s heatwaves prompted a sudden surge in demand for retrofit air conditioning, but the risk is that we go from living in airtight boxes to airtight boxes with cooling.

“There are lots of low energy solutions that should be adopted before we resort to mechanical cooling systems and we will be looking at these in detail at this year’s World Ventil8 Day Exchange.

“This event is now a tried and tested forum for sharing practical insights, exploring the latest thinking, and enabling engineers, contractors, consultants, housing professionals, policy makers and industry leaders to connect and share knowledge, expertise and frustrations,” added Taylor who is managing director of IAQ specialists ARM Environments.

Visit the website to see the full programme and register for the event on 5 November.

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