World Ventilation Day event takes on overheating
28th August 2026
UK: BESA will mark this year’s World Ventilation Day with an event in London focused on overheating in the built environment.
World Ventil8 Day Exchange, being held at the Building Centre, London, on 5 November, will provide expert insights and real-world case studies to demonstrate how smarter design can improve occupant comfort, reduce energy consumption, and deliver more climate resilient buildings.
The demand for air conditioning is soaring right across the planet, but BESA along with other major like-minded industry bodies, companies and individuals will also use WV8D as a platform to explore how other solutions like ventilative and evaporative cooling, passive design, and intelligent ventilation strategies can also play their part in addressing overheating, reducing energy consumption and harmful emissions.
The agenda for the day will include 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 and carry out tasks like continuous monitoring and ventilation performance assessment.
There will be a series of short sharp 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.
The event is sponsored by Mitsubishi Electric Living Environmental Systems UK with CIBSE as official partner helping bring together expert insights and real-world case studies to demonstrate how smarter design can improve occupant comfort, reduce energy consumption, and deliver more climate resilient buildings.
World Ventil8 Day is celebrated annually on 8 November. It aims to raise awareness of the importance of ventilation as a crucial part of enabling health and wellbeing of people. It also seeks to recognise and celebrate the ventilation and indoor air quality community.
BESA and CIBSE will once again support the global initiative which will see a series of events staged worldwide organised by international partners like AREA (the umbrella body for European contractors’ organisations), ASHRAE (the American Society of Heating, Refrigerating and Air Conditioning Engineers) and UNEP (the United Nations Environment Programme).
Further information and registration here.






