New ventilation system helps protect healthcare workers from Covid-19 infection

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Description

An innovative ventilation system, called stratum ventilation, developed in the Division of Building Science and Technology (BST) at City University of Hong Kong (CityU) can help reduce the risk of Covid-19 infection by supplying fresher air for healthcare staff in isolation wards.

The stratum ventilation was developed by Professor John Lin Zhang, Head of BST, who has been studying ventilation systems since the outbreak of SARS in 2003. The air supply and exhaust for the stratum ventilation system can be placed strategically in different positions for a particular functional location. The supply can be placed in the middle of a wall while the exhaust can be placed near the floor, thus minimising the mixing of fresh and obsolete air in a hospital ward.

“We need to protect healthcare workers as they are the frontline soldiers fighting the epidemic. In addition to personal protective equipment, the stratum ventilation system can supply fresher air and effectively dilute the concentration of pathogens, which will provide double protection for healthcare workers,” emphasized Professor Lin.

Period3 May 2020 → 4 May 2020

Media coverage

TitleNew ventilation system helps protect healthcare workers from Covid-19 infection
DescriptionProfessor John Lin Zhang, Head of Division of Building Science and Technology (BST) at City University of Hong Kong (CityU), developed an innovative ventilation system called stratum ventilation. The air supply and exhaust for the stratum ventilation system can be placed strategically in different positions for a particular functional location. The supply can be placed in the middle of a wall while the exhaust can be placed near the floor, thus minimising the mixing of fresh and obsolete air in a hospital ward.

“The system allows the fresh air to flow out horizontally, where it first reaches the breathing zone of the healthcare workers and then that of the patients. Finally, the air stream with possible pathogens is exhausted through the outlets above the floor near the patients’ headboards. This not only positions healthcare workers in the ‘upstream’ part of the supply airflow, but also dilutes and expels the airborne contaminants in the ward effectively,” Professor Lin said.
Persons
Media name/outletCityU NewsCentre
PlaceHong Kong
Degree of recognitionLocal
Media typeWeb
Producer/AuthorCathy Choi
Date4/05/20
Linkhttps://www.cityu.edu.hk/media/news/2020/05/04/new-ventilation-system-helps-protect-healthcare-workers-covid-19-infection
Title城大研層式通風系統 減低醫護感染風險
Description城大建築科技學部主任林章教授研發的層式通風系統，能使在隔離病房工作的醫護人員，得到新鮮潔淨空氣，減低受新冠病毒感染的風險。
Persons
Media name/outlet星島日報
PlaceHong Kong
Media typeWeb
Date4/05/20
Title城大新研通風系統 助隔離病房醫護吸「鮮氣」
Description城市大學建築科技學部主任林章教授及研究團隊研發「層式通風系統」，令在隔離病房工作的醫護人員可吸到新鮮潔淨空氣，並減低感染新冠病毒的風險。團隊早前以實驗研究病人咳1分鐘後病房內飛沫濃度及分佈情况，發現採「層式通風系統」室內飛沫濃度較低，分佈相對均勻。
Persons
Media name/outlet明報
PlaceHong Kong
Media typeWeb
Date4/05/20
Linkhttps://news.mingpao.com/pns/%E8%A6%81%E8%81%9E/article/20200504/s00001/1588531421933/%E5%9F%8E%E5%A4%A7%E6%96%B0%E7%A0%94%E9%80%9A%E9%A2%A8%E7%B3%BB%E7%B5%B1-%E5%8A%A9%E9%9A%94%E9%9B%A2%E7%97%85%E6%88%BF%E9%86%AB%E8%AD%B7%E5%90%B8%E3%80%8C%E9%AE%AE%E6%B0%A3%E3%80%8D
Title城大研新通風系統 減醫護染疫風險
Description城大建築科技學部主任林章教授研發出新的層式通風系統，將出風嘴及排風嘴設在不同位置，避免新鮮空氣與「舊」空氣混合，可以使在隔離病房工作的醫護人員得到新鮮潔淨的空氣，減低受新冠病毒感染的風險。
Persons
Media name/outlet文匯報
PlaceHong Kong
Media typeWeb
Producer/Author文森
Date4/05/20
Linkpaper.wenweipo.com/2020/05/04/HS2005040011.htm
Title城大研層式通風系統 減前線感染風險
Description城市大學建築科技學部主任林章教授成功研發層式通風系統，新系統的出風口及排風口設於不同位置，比以往沿用的混合通風系統，更易使醫護人員吸入新鮮空氣，並避免新空氣及「舊」空氣混合，減低醫護人員吸入含病原體空氣的風險。
Persons
Media name/outlet東方日報
PlaceHong Kong
Media typeWeb
Date4/05/20
Linkhttps://orientaldaily.on.cc/cnt/news/20200504/00176_017.html
Title城大研層式通風系統 減醫護感染風險
Description城大建築科技學部主任林章教授公布新研發的層式通風系統，能使在隔離病房工作的醫護人員得到新鮮潔淨空氣，有助他們減低受新型冠狀病毒感染的風險。
Persons
Media name/outlet香港經濟日報
PlaceHong Kong
Media typeWeb
Date4/05/20
Linkhttps://paper.hket.com/article/2633231/城大研層式通風系統%20減醫護感染風險
Title城大研層式通風防病房播毒
Description城大建築科技學部主任林章教授成功研發層式通風系統，將出風口及排風口設於不同位置，可避免新空氣及舊空氣混合，能使在隔離病房工作的醫護較易吸入新鮮潔淨空氣，減低受病毒感染風險。
Persons
Media name/outlet信報財經
PlaceHong Kong
Media typeWeb
Producer/Author紀曉風
Date4/05/20
Linkhttps://www1.hkej.com/dailynews/views/article/2453118/%E5%9F%8E%E5%A4%A7%E7%A0%94%E5%B1%A4%E5%BC%8F%E9%80%9A%E9%A2%A8%E9%98%B2%E7%97%85%E6%88%BF%E6%92%AD%E6%AF%92
Title城大研層式通風減病房傳染
Description城大建築科技學部主任林章教授研發層式通風系統，讓在隔離病房工作的醫護人員呼吸到新鮮空氣，有助減低感染新冠肺炎病毒的風險。他研發的層式通風系統，將出風咀及排風咀置於不同位置，出風咀可置於牆的中間位置，而排風咀則置於近地面位置，令新鮮空氣不會與「舊」空氣混合。
Persons
Media name/outlet香港商報
PlaceHong Kong
Media typeWeb
Producer/Author周偉立
Date4/05/20
Linkhk.hkcd.com/pdf/202005/0504/HA02504CLAA_HKCD.pdf
TitleCityU air vents foil virus
DescriptionAn innovative ventilation system that can reduce the risks of Covid-19 infection by supplying fresher air to medical staff in isolation wards has been developed by Professor John Lin Zhang, Head of Division of Building Science and Technology (BST) at City University of Hong Kong(CityU).
Persons
Media name/outletThe Standard
PlaceHong Kong
Media typeWeb
Producer/AuthorMandy Zheng
Date4/05/20
Linkhttps://www.thestandard.com.hk/section-news/section/11/218623/CityU-air-vents-foil-virus
Title【新冠肺炎】城大研發新型通風系統　助減低醫護感染病毒風險
Description香港城市大學建築科技學部主任林章教授研發的層式通風系統，將出風口及排風口置於不同位置，出風口可置於牆的中間位置，而排風口則置於近地面位置，令新鮮空氣不會與「舊」空氣混合。研發的層式通風系統，能使在隔離病房工作的醫護人員得到新鮮潔淨空氣，有助減低受新型冠狀病毒感染的風險。
Persons
Media name/outletHK01
PlaceHong Kong
Media typeWeb
Producer/Author袁澍
Date3/05/20
Linkhttps://www.hk01.com/%E7%A4%BE%E6%9C%83%E6%96%B0%E8%81%9E/468369/%E6%96%B0%E5%86%A0%E8%82%BA%E7%82%8E-%E5%9F%8E%E5%A4%A7%E7%A0%94%E7%99%BC%E6%96%B0%E5%9E%8B%E9%80%9A%E9%A2%A8%E7%B3%BB%E7%B5%B1-%E5%8A%A9%E6%B8%9B%E4%BD%8E%E9%86%AB%E8%AD%B7%E6%84%9F%E6%9F%93%E7%97%85%E6%AF%92%E9%A2%A8%E9%9A%AA
Title城大研層式通風系統　助減低隔離病房醫護感染病毒風險
Description城大建築科技學部主任林章教授研發層式通風系統，讓在隔離病房工作的醫護人員呼吸到新鮮空氣，有助減低感染新型冠狀病毒的風險。他研發的層式通風系統，將出風咀及排風咀置於不同位置，出風咀可置於牆的中間位置，而排風咀則置於近地面位置，令新鮮空氣不會與「舊」空氣混合。
Persons
Media name/outletRadio Television Hong Kong (RTHK)
PlaceHong Kong
Media typeWeb
Date3/05/20
Linkhttps://news.rthk.hk/rthk/ch/component/k2/1523987-20200503.htm
Title【New Coronary Pneumonia】 Urban University develops a new ventilation system to help reduce the risk of virus infection in healthcare
DescriptionThe ventilation system experts of the Department of Architecture and Technology of the City University of Hong Kong have developed a layered ventilation system, which can provide medical staff working in isolation wards with fresh and clean air, which can help reduce the risk of infection with new coronaviruses.
Persons
Media name/outletThe Limited Times
PlaceHong Kong
Media typeWeb
Producer/AuthorYuan Shu
Date3/05/20
Linkhttps://newsrnd.com/news/2020-05-03-%E3%80%90new-coronary-pneumonia%E3%80%91-urban-university-develops-a-new-ventilation-system-to-help-reduce-the-risk-of-virus-infection-in-healthcare.BJonV0jYL.html