...our monthly newspaper with specific information on AIVC, the platforms venticool, TightVent, Dynastee as well as IEQ-GA & news from the EU and international partners. Previous editions are available here.
 
 
 
 
 
 
 
 
 
 
 
45th AIVC & ASHRAE 2025 IEQ conference, 24-26 September 2025, Montreal
 
 
From www.aivc.org - 7 March, 09:49
 

The conference "IEQ 2025: Rising to new challenges: Connecting IEQ to a sustainable future”, organized by ASHRAE and AIVC, will be held in Montreal, Quebec, Canada on 24-26 September 2025. The conference will also be the 13th TightVent...

 
 
 
Presentations Slides from the AIVC April 2025 Workshop in Stuttgart Now Available!
 
 
From www.aivc.org - 7 March, 09:45
 

The AIVC together with Fraunhofer IBP in Germany organise a workshop entitled “Indoor Environmental Quality in Sustainable Buildings" to be held on 1-2 April 2025 in Stuttgart, Germany.  The 1 ½ day workshop provides...

 
 
 
Webinar Recordings– Recent standards and guidelines on CO2 application and interpretation
 
 
From www.aivc.org - 15 April, 15:05
 

Indoor carbon dioxide concentrations have been measured and discussed in the context of building ventilation and indoor air quality (IAQ) for more than 100 years. In recent decades they have been proposed as an easy way to evaluate the adequacy of ventilation, even to  estimate ventilation rates, as well as...

 
 
 
 
 
 
Don’t Hold Your Breath – Implementing Effective Ventilation Strategies for Healthy Indoor Spaces
 
 
From www.aivc.org - 10 April, 14:56
 

On March 21, 2025, the EDIAQI and LEARN projects co-hosted a webinar titled "Don't Hold Your Breath: Implementing Effective Ventilation Strategies for Healthy Indoor Spaces."Arnold Janssens, Operating Agent of the AIVC, opened the session by tracing the evolution of ventilation from its energy-efficiency focus in the 1970s to its current emphasis on health and well-being. He highlighted AIVC's role in...

 
 
 
AIVC newsletter edition of March 2025 now available!
 
 
From www.aivc.org - 10 April, 14:59
 

Welcome to the March 2025 edition of the AIVC newsletter! In this issue, we bring you the latest updates on AIVC’s activities over the past six months, including highlights from recent events and newly released publications. We’ll take a look back at the AIVC 2024 Conference in Dublin, where over 180 participants from 26 countries gathered to exchange knowledge and innovations. Relive the event’s highlights and key moments...

 
 
 
 
 
 
 
 
 
 
 
 
 
AIVC & venticool Webinar – Improving thermal resilience of buildings to overheating: Lessons learned | 5 May 2025 (14:00-15:30 CET)
 
 
From venticool.eu - 10 April, 14:15
 

Climate change is leading to increasingly frequent and severe heatwaves, which elevate the risk of human thermal stress in indoor environments. These conditions can make buildings uninhabitable during extreme events and long after they… 

 
 
 
Recap: 11th meeting of the Advisory Board of Practitioners
 
 
From venticool.eu - 10 April, 14:15
 

On March 27th, 2025, representatives from the building cooling and ventilation industry along with architects and consultants convened for the 11th meeting of the Advisory Board of Practitioners (ABoP). Since early 2024… 

 
 
 
Case study investigation of overheating in low-energy homes: insights from a post-occupancy evaluation in England
 
 
From venticool.eu - 10 April, 14:15
 

A recent study by Linda Toledo et al. investigated overheating in four low-energy homes in England–three newly built and one retrofitted. Over an 11-month period...

 
 
 
 
 
 
 
 
 
 
 
 
 
16-17 May 2025, Hannover – “14th International BUILDAIR Symposium”
 
 
From tightvent.eu - 7 March, 09:53
 

The 14th International Buildair Symposium: “Airtight Buildings, Thermography and Ventilation Systems in Practice” will take place on May 16 and 17, 2025 in Hanover, Germany.  The event will offer a unique opportunity to find out about the latest developments…

 
 
 
Register for our Webinar – Building and ductwork airtightness trends and regulations in Estonia, Germany and the U.S. [12 May 2025, 15:30-17:00 CET]
 
 
From tightvent.eu - 10 April, 14:08
 

Major discrepancies are found between countries regarding both the building and ductwork airtightness trends, primarily due to varying national policies, construction practices, and climates. In some countries, minimum airtightness...

 
 
 
AIVC & TightVent Webinar – Inspection of ventilation systems in non-residential buildings [5 June 2025, 13:30-15:00 CET]
 
 
From tightvent.eu - 10 April, 14:09
 

The inspection of ventilation systems in non-residential buildings is a growing priority across Europe, driven by the need for better energy efficiency and indoor air quality. Inspection protocols can be challenging to develop as, unlike for residential buildings, a wide range of building types...

 
 
 
 
 
 
 
 
 
 
 
 
 
IEQ-GA's Air Infiltration, Ventilation & Air Conditioning Glossary
 
 
From ieq-ga.net - 7 March, 10:05
 

The Indoor Environmental Quality – Global Alliance is pleased to announce the release of a Glossary of air infiltration, ventilation, and air conditioning terms. The Glossary was developed by the member organizations’ representatives led by Professor Livio Mazzarella, Politecnico di Milano – Dipartimento di Energia. It fulfils a goal of IEQ-GA to generate documents that will be useful to all its members...

 
 
 
Introduction to the MIST project (MItigation STrategies for Airborne Infection Control)
 
 
From ieq-ga.net - 10 April, 15:06
 

People spend most of their time indoors, whether at home, work, school, or in different public spaces. This prolonged indoor exposure creates an environment where respiratory viruses can...

 
 
 
 
 
 
2025 ASHRAE Annual Conference | 21-25 June, 2025, Phoenix, AZ
 
 
From www.ashrae.org - 7 March, 10:12
 

ASHRAE is looking forward to convening at the Sheraton Phoenix Downtown and Phoenix Convention Center June 21-25, 2025. Registration is now open. Early bird registration ends on April 28. Conference Tracks:  Fundamentals & Applications | HVAC&R Systems and Equipment  | Industrial Ventilation, Refrigeration, Air-Conditioning & Energy Utilization | Heat Pumps, Refrigerants...

 
 
 
15th REHVA HVAC World Congress | 4-6 June 2025, Milan
 
 
From ieq-ga.net - 7 March, 10:10
 

The REHVA HVAC World Congress CLIMA is the leading international scientific congress in the field of heating, ventilation, and air conditioning (HVAC).After the great success of the 2022 edition, organized by the Dutch association TVVL, the baton now passes to AiCARR for the...

 
 
 
 
 
 
 
 
 
 

News from the EU and international partners

 
 
 
 
 
 
 
Emissions from building sector stopped rising for the first time since 2020, UN finds
 
 
From www.unep.org - 10 April, 15:20
 

A growing number of countries are working to decarbonize buildings, but sluggish progress and financing puts global climate goals at risk. These are the key findings of an annual review of the buildings and construction sector, published...

 
 
 
Building the future: How digitalisation and artificial intelligence are reshaping competitiveness in Europe's construction sector
 
 
From build-up.ec.europa.eu - 10 April, 16:12
 

In January 2025, the European Commission launched the Competitiveness Compass, a tool to guide...

 
 
 
Analysis of EU and national level policies related to renovation and alleviating energy poverty
 
 
From www.bpie.eu - 10 April, 16:16
 

Energy poverty is a pressing issue in the EU, affecting millions of households. It occurs when people cannot afford essential energy services, such as heating, cooling or lighting, negatively impacting health, well-being and social inclusion. In 2022, more than...

 
 
 
 
 
 
New release: Shedding light on energy in Europe 2025
 
 
From ec.europa.eu - 10 April, 16:08
 

Energy plays a crucial role in our daily lives, from lighting and heating our homes to powering industry and transport. But where does it come from and what types of energy do we use in the EU? How are we advancing towards adopting renewable energy...

 
 
 
Defining a common vision for climate neutral buildings: a comprehensive and harmonised framework for whole-life carbon measurement
 
 
From www.bpie.eu - 10 April, 16:17
 

This report informs the EU’s upcoming Delegated Act on Whole Life Carbon (WLC) by outlining key principles for a harmonised methodology...

 
 
 
BuildON: Advancing smart and sustainable buildings in Europe
 
 
From build-up.ec.europa.eu - 10 April, 16:11
 

Digitalisation and smart technologies provide a pathway to affordable, adaptable, and scalable solutions. The BuildON project introduces an innovative Smart...

 
 
 
 
 
 
Energy Efficient Buildings – Revised Calculation Methodology Open for Feedback
 
 
From www.rehva.eu - 10 April, 16:45
 

The European Commission has opened a feedback period on the revised methodology to calculate minimum energy performance requirements for buildings. This initiative updates the rules for determining cost-optimal levels of minimum...

 
 
 
Bridging the Smart Readiness gap: A holistic approach to smart buildings
 
 
From build-up.ec.europa.eu - 10 April, 16:11
 

Smart solutions address building needs amid climate, net-congestion, and comfort challenges. A holistic approach, matching the needs of diverse stakeholders and taking existing technology and cybersecurity in account...

 
 
 
Investigating thermal comfort and air quality perceptions in Mediterranean schools
 
 
From build-up.ec.europa.eu - 10 April, 16:37
 

This study highlights how temperature influences students' thermal comfort and air quality perceptions in classrooms, with minimal impact from CO2 levels, emphasising the need for improved ventilation...


 
 
 
 
 
 
Healthy Buildings 2025 | 8-11 June 2025, Reykavik, Iceland
 
 
From www.hb2025iceland.org - 7 March, 10:15
 

Healthy buildings, HB2025 - ISIAQ. Rentegrate science to practice for healthy and sustainable buildings.

Join us in Reykjavík to explore the critical intersection of climate resilience, building sustainability, and occupant well-being...

 
 
 
First International Symposium on Smart Materials for Energy Efficient Built Environment Control | 10-11 June 2025, Paris
 
 
From smbc-2025.sciencesconf.org - 5 February, 14:46
 

Energy consumption for environmental control in buildings—such as heating, cooling, and IAQ...

 
 
 
Healthy Buildings Asia 2025 | 18 -21 August 2025, Hyderabad, India
 
 
From www.hb2025.co.in - 10 January, 11:30
 

The conference will cover a diverse range of topics, offering insights from experts across various fields. Indoor Environmental Quality (IEQ) Monitoring and Performance Metrics, Sensors, IoT, Measurement...

 
 
 
 
 
 
SCANVAC Cold Climate Conference | 6-8 August 2025, Harbin, China
 
 
From cchvac2025.hit.edu.cn - 10 April, 16:50
 

The 12th International Conference on Cold Climate HVAC & Energy is to be held in in Harbin, China, from August 6-8, 2025. The conference is organized by Harbin Institute of Technology (HIT), the Cold Climate conference series was founded...

 
 
 
ISHVAC 2025 | 29 November - 2 December 2025, Tokyo, Japan
 
 
From ishvac2025.com - 6 March, 13:45
 

The 14th International Symposium on HVAC2025 will be held from November 29 to December 2, in Tokyo, Japan. The key topics covered in the conference are: carbon emission assessment, energy efficient HVAC system and...

 
 
 
IAQVEC 2026 | 18-22 May 2026, Los Angeles, USA
 
 
From iaqvec2026.org - 6 March, 13:52
 

IAQVEC 2026 will explore the future of building science, technology and architecture under the theme “Envisioning the Future: Innovations in Research and Technology for a Better...

 
 
 
 
 
 

Videos

...including a list of our recent webinar recordings 

 
 
 
 
 
 
 

Recent standards and guidelines on CO2 application and interpretation (more info)

 
 
 
 
 
 
 

Background on the application of indoor CO2: ASHRAE Position Document and ASTM Standard D6245


Andrew Persily (NIST, USA)

 
 
 
 
 
 
 
 
 
 
 
 
 
 

Demand controlled ventilation in ISO 17772-1 (EN 16798-1) and ASHRAE Standard 62.1


Bjarne Olesen (DTU, DK) 

 
 
 
 
 
 
 
 
 
 
 
 
 
 

Indoor CO2 values in guidelines and standards


Mark Mendell (LBNL, USA) 

 
 
 
 
 
 
 
 
 
 
 
 
 
 

ISO 16000-26, Sampling strategy indoor CO2 and a review of sensing technology

John Saffell (NosmoTech Ltd., UK)

 
 
 
 
 
 
 
 
 
 
 

MIST project - MItigation STrategies for Airborne Infection Control (more info)

 
 
 
 
 
 
 

Clear air matters - Share the room, not your air! | MIST project


MIST project

 
 
 
 
 
 
 
 
 
 

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