Dyson report - Indoor air quality worse than outdoors for most of the world
17 January 2024 • Report Summary
Dyson: 85% of countries experienced indoor air quality worse than outdoor for more than 6 months of 2022
Dyson's report reveals indoor air quality is worse than outdoors for most of the world. 85% of studied countries had indoor PM2.5 levels exceeding WHO guidelines for over 6 months in 2020. E.g., UK indoor PM2.5 is 23% higher than outside, with winter and evenings seeing the worst levels. Milan, Shenzhen, Amsterdam, and Seoul have particularly poor indoor air. VOCs are highest in Europe, with Austria leading. The report highlights the need for research and awareness about indoor air pollution, which we often underestimate compared to outdoor.