The removal of airborne SARS-CoV-2 and other microbial bioaerosols by air filtration on COVID-19 surge units.

Andrew Conway Morris,Katherine Sharrocks,Rachel Bousfield,Leanne Kermack,Mailis Maes,Ellen Higginson,Sally Forrest,Joannna Pereira-Dias,Claire Cormie,Timothy Old,Sophie Brooks,Islam Hamed,Alicia Koenig,Andrew Turner,Paul A. White,R. Andres Floto,Gordon Dougan,Effrossyni Gkrania-Klotsas,Theodore Gouliouris,Stephen Baker,Vilas Navapurkar

The removal of airborne SARS-CoV-2 and other microbial bioaerosols by air filtration on COVID-19 surge units.

2021

Airborne SARS-CoV-2 was detected in a COVID-19 ward before activation of portable HEPA-air filtration, but not during the week of filter operation; SARS-CoV-2 was again detected when the filter was off. Airborne SARS-CoV-2 was infrequently detected in a COVID-19 ICU. Filtration significantly reduced other microbial bioaerosols in both settings.

Keywords:

air filtration
severe acute respiratory syndrome coronavirus 2
Medicine
Environmental chemistry
Filtration
Indoor bioaerosol
2019 20 coronavirus outbreak
Coronavirus disease 2019

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