Evaluation of ionic air purifiers for reducing aerosol exposure in confined indoor spaces

Five ionic air purifiers - two wearable and three stationary - producing unipolar air ions are evaluated in this study.The aim is to check their ability to reduce aerosol exposure in confined indoor spaces.The data suggests that the unipolar ionic air purifiers are particularly efficient in the breathing zone when used inside confined spaces with a high surface-to-volume ratio, but a periodic cleaning of those indoor surfaces is needed.