ASENTEEISM

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HEPA filters in classrooms aim to cut sick days

Prevention ENROLLING_BY_INVITATION

This study tests whether portable HEPA air purifiers in primary school classrooms can reduce student absences caused by respiratory infections like colds and flu. About 1,400 students in grades 5-7 across 62 Norwegian schools will take part. Half the classrooms will get real puri…

Matched conditions: ASENTEEISM

Phase: NA • Sponsor: Norwegian Institute of Public Health • Aim: Prevention

Last updated May 11, 2026 20:38 UTC

ASENTEEISM

Get alerted when new ASENTEEISM trials appear

HEPA filters in classrooms aim to cut sick days