A randomized crossover trial will be conducted in 90 primary school children in 3 classrooms in Shanghai, China. The effects of fresh air ventilation/filtration system, fresh air ventilation system with no filtration and natual ventilation will be compared on the effects of reducing indoor PM2.5 and chilhood health. Biological samples of children are going to be collected to investigate the associations between indoor air pollution and biomarkes of certain health effects.
Age range
10 Years – 13 Years
Sex
ALL
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Exhaled nitric oxide
Timeframe: within 2 hours of the end of intervention in each week
Oxidative stress biomarkers
Timeframe: within 2 hours of the end of intervention in each week
Sick building symdrom
Timeframe: within 2 hours of the end of intervention in each week