ventilation

IEA EBC Annex 68 - Indoor Air Quality Design and Control in Low Energy Residential Buildings – Setting the Metrics

Submitted by on Wed, 11/03/2021 - 09:56

This paper presents the initial reflections in the frame of Subtask 1 – Setting the Metrics of the IEA EBC Annex 68 – Indoor Air Quality Design and Control in Low Energy Residential Buildings. The first step of IEA Annex 68 aims at summarizing the current knowledge on target pollutants for residential buildings and at evaluating indoor air quality (IAQ), i.e. how to define indices that provide useful information allowing to achieve low risks for health in indoor spaces, and how to enable the comparison of solutions for achieving high IAQ taking into account energy efficiency.

REMARK: This Q&A was part of the AIVC special COVID-19 newsletter published in July 2021. To subscribe to the newsletter please click here.

REMARK: This Q&A was part of the AIVC special COVID-19 newsletter published in July 2021. To subscribe to the newsletter please click here.

Opening windows almost always reduces the risk of contamination with SARS-CoV-2. But it is important to be aware of low outdoor air temperatures that could affect the comfort of occupants and exacerbate related health problems. 

Although close contact transmission is the dominant transmission route, long-range airborne transmission through small size infected aerosols plays an important role in spreading COVID-19 in indoor spaces. Ventilation is air exchange between inside and outside; it dilutes the concentration of contaminants, and hence helps to control aerosol-based cross-infection risk of COVID-19.

AIVC Ventilation Information Paper #42: The Concept for Substituting Ventilation by Gas Phase Air Cleaning

AIVC's Ventilation Information Paper no 42: The Concept for Substituting Ventilation by Gas Phase Air Cleaning has just been released! The paper discusses and evaluates the pros and cons by partly substituting required ventilation by gas phase air cleaning.  

The paper is freely accessible upon registration. Please click here to download and read the document. 

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VIP 42: The Concept for Substituting Ventilation by Gas Phase Air Cleaning

Submitted by on Wed, 04/28/2021 - 14:46

Worldwide, there is an increasing number of publications related to air cleaning and sales of gas phase air cleaning products. This puts a demand for verifying the influence of using air cleaning on indoor air quality, comfort, well-being and health. It is thus important to learn whether air cleaning can supplement ventilation with respect to improving air quality i.e. whether it can partly substitute the ventilation rates required by standards.

AIVC & EBC Annex 86 Webinar "Big data, IAQ and ventilation – parts 1&2"

The recordings and the slides of the recent AIVC & EBC Annex 86 Webinars “Big data, IAQ and ventilation” held on April 13th & April 21st, 2021, are now available online at: https://www.aivc.org/event/13-april-2021-webinar-big-data-iaq-and-ventilation-part-1 and https://www.aivc.org/event/21-april-2021-webinar-big-d

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Upcoming AIVC Webinars | 1-8-13-21 April 2021

The Air Infiltration and Ventilation Centre & the IEA EBC Annex 86 “Energy Efficient Indoor Air Quality Management in Residential Buildings” (https://annex86.iea-ebc.org/) are organizing a workshop consisting of a series of four webinars on:

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21 April 2021, Webinar – Big data, IAQ and ventilation – part 2

Submitted by on Fri, 03/26/2021 - 16:53

The Air Infiltration and Ventilation Centre (AIVC) in collaboration with IEA EBC Annex 86 organized a workshop consisting of a series of four webinars on:

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WHO Roadmap on good indoor ventilation in the context of COVID-19

The World Health Organization (WHO) developed and published a roadmap on how to improve ventilation in indoor spaces in the context of COVID-19. The roadmap is divided into three settings – health care, non-residential and residential spaces – and takes into account different ventilation systems (mechanical or natural). The roadmap is aimed at health care facility managers, building managers, as well as those members of the general public who are providing home care or home quarantine.

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