Reducing AIR Pollution Exposure to Lower Blood PRESSURE Among New York City Public Housing Residents

Inclusion Criteria: * self-reported nonsmokers living in a nonsmoking household. * adults living with hypertension (HTN) from NYC public housing. Exclusion Criteria: * History of major known arrhythmias (e.g. atrial flutter or fibrillation, ventricular tachycardia). * Screening systolic BP ≥160 mm Hg or diastolic BP ≥100 mm Hg (i.e. severe hypertension by the 2017 ACC/AHA BP guideline). * A change in drug regimen in the prior 2 weeks or a planned change in drug regimen during the first 30 days for those taking antihypertensive medication. * Current smoking or living with an active smoker who smokes indoors * Planned travel out of NYC for ≥2 weeks in next 6 months * Incarcerated * Pregnant * Unable/unwilling to consent * Established cardiovascular disease * End-stage renal disease (chronic kidney disease stage IV or on dialysis) * Barrier to technology use (e.g., visual or hearing impairment) * Lung disease requiring oxygen * Cancer receiving treatment