Indoor carbon dioxide levels could be a health hazard

Indoor levels of carbon dioxide could be clouding our thinking and may even pose a wider danger to human health, researchers say.

While air pollutants such as tiny particles and nitrogen oxides have been the subject of much research, there have been far fewer studies looking into the health impact of CO2.

However, the authors of the latest study – which reviews current evidence on the issue – say there is a growing body of research suggesting levels of CO2 that can be found in bedrooms, classrooms and offices might have harmful effects on the body, including affecting cognitive performance.