Dyson’s inaugural Global Air Quality Connected Data project unveils concerning findings, indicating that India leads the world in indoor air pollution, registering the highest annual PM2.5 levels. This comprehensive study, examining data from over 2.5 million connected Dyson air purifiers, provides a granular understanding of indoor air quality trends across various regions.
Key Findings:
India Dominates Indoor PM2.5 Levels: India records the highest average annual PM2.5 levels (55.18 μg/m³), surpassing China, Turkey, UAE, and South Korea. Two-thirds of countries exhibit higher annual indoor PM2.5 levels compared to outdoor levels in 2022. Monthly average indoor PM2.5 levels in all countries exceed WHO long-term exposure guidance for at least 6 months, with India consistently surpassing the WHO daily PM2.5 air quality guideline every month.
Seasonal Trends and Indoor Pollution: Winter emerges as the most polluted season globally, trapping polluted air closer to the ground. India experiences elevated indoor pollution levels not only during winter but also in dry and wet seasons.
Insights into Indoor Air Quality: Delhi tops the list of PM2.5 levels among studied cities, with the highest indoor annual average PM2.5 levels of 69.29, followed by Beijing, Shanghai, Shenzhen, and Busan.
Indoor air quality in India, particularly during winter, exceeds WHO health standards, with levels 41% dirtier on average compared to outdoor air. In Delhi, this disparity rises to 48%.
The Need for Air Purification: Dyson emphasizes the importance of investing in air purifiers as a proactive measure to combat indoor pollution. The Dyson Purifier Big+Quiet, designed for spaces up to 1076 sq. ft., utilizes advanced technology for effective air purification, ensuring a healthier indoor environment.
Understanding Pollutants: The study focuses on two main pollutants: PM2.5 and Volatile Organic Compounds (VOCs). PM2.5 refers to tiny particles, invisible to the naked eye, with sources including combustion, pet dander, and dust. VOCs, gas pollutants emitted from various activities and products, contribute to indoor air pollution.
Dyson’s Engineering Director for Environmental Care, Matt Jennings, emphasizes the significance of the connected air quality data in addressing real-world challenges. Professor Hugh Montgomery, Chair of Intensive Care Medicine at University College London, highlights the transformative potential of Dyson’s data as an education tool to raise awareness about indoor air pollution.
As India grapples with escalating pollution concerns, investing in air purifiers becomes a crucial step toward ensuring a healthier living environment. Dyson remains committed to advancing technology and providing solutions to tackle the challenges posed by indoor air pollution.
Note: The data presented is based on Dyson Purifiers connected to the MyDyson app and in monitoring-only mode, ensuring an accurate representation of real-world air quality without the purifiers actively cleaning the air.
