Pollution Intervention to Impact Kids Asthma Study

Inclusion Criteria: * A healthcare provider diagnosis of persistent asthma (Steps 2-5 as defined by US guidelines) or intermittent asthma (Step 1) + at least one severe asthma exacerbation (defined by American Thoracic Society (ATS)/European Respiratory Society (ERS) criteria as requiring at least 3 days of systemic steroids or an Emergency Department/Urgent Care visit requiring systemic steroids) in the prior 12 months * Home access to a smartphone or internet * Primary residence in Allegheny County, PA * One participant per household * Age 8 -17 years * Healthcare provider evaluation for asthma in the prior year Exclusion Criteria: * Diagnosis of other active chronic respiratory diseases (e.g., cystic fibrosis, bronchopulmonary dysplasia, etc.) * Neuromuscular disorder * Chronic disorder limiting independent ambulation (e.g., spastic quadriplegia, etc.) * Cyanotic heart disease * Plans to relocate from Allegheny County, PA in the next year (12 months) * Use of intranasal or oral/intramuscular/intravenous corticosteroids 4 weeks prior to randomization * Current participation in another asthma intervention trial