Alliance for Pandemic Preparedness

October 6, 2020

Testing Mobile Air Purifiers in a School Classroom Reducing the Airborne Transmission Risk for SARS-CoV-2

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  • [Pre-print, not peer reviewed] Four mobile air purifiers with HEPA filters in a regular high school classroom were able to reduce the concentration of aerosols by more than 90% within less than 30 minutes compared to a neighboring classroom without purifiers. The authors further estimate that the inhaled dose via airborne transmission from staying in the room with a super-infectious person for two hours is reduced by a factor of 6 by the air exchange rate when using the purifiers.

Curtius et al. (Oct 5, 2020). Testing Mobile Air Purifiers in a School Classroom Reducing the Airborne Transmission Risk for SARS-CoV-2. Pre-print downloaded Oct 6 from https://doi.org/10.1101/2020.10.02.20205633