Cleaner air, fewer sick days? norwegian study tests air purifiers in schools
Prevention
ENROLLING_BY_INVITATION
This study aims to see if putting portable air purifiers with HEPA filters in classrooms can reduce the number of days students and teachers are absent due to respiratory illnesses like colds, flu, and COVID-19. Researchers will compare real air purifiers to fake ones in about 72…
Phase: NA • Sponsor: Norwegian Institute of Public Health • Aim: Prevention
Last updated Apr 01, 2026 21:56 UTC