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Vented Individual Patient(VIP)Hoods for the Control of Infectious Airborne Diseases in Healthcare Facilities

Engineering 2022年第8期8卷 126-132页

作者： J.Patel F.McGain t.bhatelia S.Wang B.Sun J.Monty V.Pareek CSIRO Energy MelbourneVIC 3169Australia Western Health MelbourneVIC 3021Australia School of Public Health The University of SydneySydneyNSW 2006Australia Centre for Integrated Critical Care The University of MelbourneMelbourneVIC 3010Australia the Western Australian School of Mines:Minerals Energy and Chemical EngineeringCurtin UniversityPerthWA 6102Australia Department of Mechanical Engineering City University of Hong KongHong Kong 999077China Department of Mechanical Engineering The University of MelbourneMelbourneVIC 3010Australia

By providing a means of separating the airborne emissions of patients from the air breathed by healthcare workers(HCWs),vented individual patient(VIP)hoods,a form of local exhaust ventilation(LEV),offer a new approach to reduce hospital-acquired infection(HAI).Results from recent studies have demonstrated that,for typical patient-emitted aerosols,VIP hoods provide protection at least equivalent to that of an N95 mask.Unlike a mask,hood performance can be easily monitored and HCWs can be alerted to failure by alarms.the appropriate use of these relatively simple devices could both reduce the reliance on personal protective equipment(PPE)for infection control and provide a low-cost and energy-efficient form of protection for hospitals and clinics.Although the development and deployment of VIP hoods has been accelerated by the coronavirus disease 2019(COVID-19)pandemic,these devices are currently an immature technology.In this review,we describe the state of the art of VIP hoods and identify aspects in need of further development,both in terms of device design and the protocols associated with their use.the broader concept of individual patient hoods has the potential to be expanded beyond ventilation to the provision of clean conditions for individual patients and personalized control over other environmental factors such as temperature and humidity.

关键词： COVID-19 Vented individual patient hood Airborne transmission Healthcare worker Infectious disease

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