Urban microclimate impact on ventilation and thermal performance of multi-family residential buildings: two case studies in different climates and urban settings

Urban settings change the microclimate around buildings and resulting thermal comfort inside.  This paper presents a method to consider microclimatic conditions, especially the effect of wind variations around the building, which impacts natural ventilation rates and indoor operative temperatures.

Minimising Hospital Acquired Infections using Good Design: Future Trends

This paper touches on historic indicators of good hospital design such as sun, daylight and natural ventilation. Evidence is provided that recent trends in hospital design that lean towards more highly serviced buildings with fixed windows lead to higher levels of Sick Building Syndrome, nosocomial infections and SARS CoV-2 related infections and deaths than in naturally ventilated buildings with opening windows.

Revision of the ventilation part of EN16798-1 and -2

As part of the mandated standards for estimating the energy performance of buildings CEN 16798-1 and -2 was developed to provide input for the indoor environment (thermal comfort, air quality/ventilation, lighting, acoustic) to energy calculations and design of buildings with its heating, cooling, ventilation, and lighting systems. A revision of this standard has now been started.

Start of the Pandemic Preparedness Program through Ventilation - Knowledge Gaps and application of the results

Ventilation and air cleaning of interior spaces are promising methods for the reduction of airborne pathogen spread and may reduce the number of (airborne) infections. With this in mind, and in response to the 2020-2022 COVID-19 pandemic, the Dutch Ministry of Health, Welfare and Sport (VWS), in collaboration with TNO have initiated this research program focusing on ventilation (P3VENTI) as part of the larger Pandemic Preparedness Program of VWS (300 million Euros, annually).

ASHRAE Indoor Carbon Dioxide Position Document: What’s Next?

ASHRAE’s 2022 publication of a new position document on indoor carbon dioxide (CO2) has been a significant contribution to ongoing discussions of how indoor CO2 can be used to understand ventilation and indoor air quality (IAQ). The position document clarifies what is known about the relationship between CO2 concentrations and ventilation rates, the effects of CO2 on building occupants, and how CO2 concentrations relate to airborne infectious disease transmission. While the position document is a key step to addressing ongoing debate and

AIRBODS: Airborne Infection Reduction through Building Operation and Design for SARS-CoV-2

The Airborne Infection Reduction through Building Operation and Design for SARS-CoV-2 (AIRBODS ) project aim is to deliver guidance on the ventilation operation and future design of non-domestic buildings and to quantify the risk of, and reduce the transmission of SARS-CoV-2 in buildings. It is doing this through experimentation, computer simulation and fieldwork supporting the guidance and tools.

Ventilation in Schools - A Review of State Policy Strategies

In January 2023, the Environmental Law Institute (ELI) with funding from the U.S. Environmental Protection Agency (EPA), released the report: "Ventilation in Schools: A Review of State Policy Strategies".

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AIVC 2023 Conference, Copenhagen – 4-5 October, 2023

The  AIVC -TightVent - venticool 2023 Conference: “Ventilation, IEQ and health in sustainable buildings” will be held during 4-5 October 2023 in Copenhagen, Denmark.

Abstract submission is still open. Authors should submit their abstracts by March 20, 2023.

Detailed information & other important deadlines for the call for abstracts can be found at: https://aivc2023conference.org/call-for-abstracts-papers/

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Feedback from the AIVC & ASHRAE Webinar "Sleeping Environment IAQ and Sleep Quality"

The recordings and the slides of the AIVC & ASHRAE Webinar: "Sleeping Environment IAQ and Sleep Quality" are now available online here.

The full collection of past events’ recordings and slides can be found here.

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12 January 2023, Webinar – Sleeping Environment IAQ and Sleep Quality

Our bodies need good rest and sleep as part of regular recuperation to enable us to perform our normal activities in life.  Sleep is an integral part of human life and the importance and significance of good bedroom IAQ, indoor air pollution, ventilation as well as bedroom thermal environment during sleep cannot be emphasized more. Yet, there is a paucity of information in the scientific literature in this regard, especially pertaining to IAQ in sleeping environments and sleep quality.  Are our bedrooms adequately ventilated at all times to maintain good IAQ?

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