Study on Home Obstructive Respiratory Exacerbations

Inclusion Criteria

• •1\. Males and females between the ages of 40 and 80 with documented physician-diagnosed COPD and FEV1/FVC\<0.70 or LLN based on post-bronchodilator spirometry
• •Hospitalized for COPD exacerbation with plan for discharge within 48 hours OR
• •Visiting pulmonologist post COPD-exacerbation within 14 days of discharge from hospital 3. Tobacco History: Current or Former Smoker
• •Has smoked at least 100 cigarettes in his/her lifetime 4. Patient can follow study procedures, including instructions for self-placement and operation of biosensor
• •Patient has experience/owns a smartphone 5. Patient is accessible by telehealth/telephone for duration of the study 6. Patient is able and willing to return to study site for study visits as necessary