Peer-Reviewed Journal Details
Mandatory Fields
Fennelly M;Hellebust S;Wenger J;O'Connor D;Griffith GW;Plant BJ;Prentice MB;
2023
January
Journal of Hospital Infection
Portable HEPA filtration successfully augments natural-ventilation-mediated airborne particle clearance in a legacy design hospital ward.
Validated
()
Optional Fields
Airborne Environment Filtration HEPA Continuous monitoring Low-cost sensors
131
54
57
As the severe acute respiratory syndrome coronavirus-2 pandemic has proceeded, ventilation has been recognized increasingly as an important tool in infection control. Many hospitals in Ireland and the UK do not have mechanical ventilation and depend on natural ventilation. The effectiveness of natural ventilation varies with atmospheric conditions and building design. In a challenge test of a legacy design ward, this study showed that portable air filtration significantly increased the clearance of pollutant aerosols of respirable size compared with natural ventilation, and reduced spatial variation in particle persistence. A combination of natural ventilation and portable air filtration is significantly more effective for particle clearance than either intervention alone.
1532-2939
10.1016/j.jhin.2022.09.017
Grant Details
Science Foundation Ireland
20/COV/0281