Natural Ventilation and Air Purification for Effective Removal of Airborne Virus in Classrooms with Heater Operation.

ABSTRACT: Mass COVID-19 infection cases in indoor spaces have been continuously reported since its global outbreak, generating increasing public interest in reducing the spread of the virus. This study considered a situation in which an infected individual continuously releases the virus into the air in a classroom, simulated by continuous injection of NaCl particles ≤ 5 μm, with heater operation during winter. The effects of applying natural ventilation and operating one or two air purifiers on the removal of virus-containing aerosols were experimentally compared and analyzed based on the spatiotemporal changes in NaCl concentration within the classroom. When a heater was operated with all windows shut, operating one and two air purifiers reduced the amount of the aerosol in indoor air by approxima

SUBMITTER: Park SH 

PROVIDER: S-EPMC9607292 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature