The most trusted and reliable air quality information from the world’s leading air pollution data provider. Covering 500,000+ locations from a global network of government monitoring stations and IQAir's own validated sensors.  Recommended for sensitive people (allergies, asthma, etc), a must-have for families and great for athletes, runners, cyclists and outdoor sports activities. Plan the healthiest day with health recommendations, 48-hour forecasts, and check the real-time global air quality