The results of the study suggest it doesn't, as measured by outcomes:
> While we did not find an association between HEPA purifier use and high overall viral exposure, the intervention was associated with a 32.8% reduction in viral diversity. However, the clinical significance of these changes is not clear given that we did not find an association between viral diversity and school absenteeism.
Point being, it only takes a very small dose of a aerosol borne virus to keep it in circulation. Breaking this chain requires extreme measures. Not impossible to achieve, but not trivial, either. Considering the widespread damage that long COVID is causing, I sincerely hope we find a way.
The results of the study suggest it doesn't, as measured by outcomes:
> While we did not find an association between HEPA purifier use and high overall viral exposure, the intervention was associated with a 32.8% reduction in viral diversity. However, the clinical significance of these changes is not clear given that we did not find an association between viral diversity and school absenteeism.
Point being, it only takes a very small dose of a aerosol borne virus to keep it in circulation. Breaking this chain requires extreme measures. Not impossible to achieve, but not trivial, either. Considering the widespread damage that long COVID is causing, I sincerely hope we find a way.