The myAir air quality app combines your information with the most current air quality readings from EPA monitoring sites in your area. Your unique height, weight, and age combine to create a specific air pollution tolerance level based on local air quality. These factors allow the myAir app to give you customized information about how long you can stay active and how hard you can play. By monitoring air pollution, myAir lets you know if you need to finish your outdoor activity early or if it’s safe to run another lap, bike another mile, or score another goal.