The goal of this interventional study is to compare at-home mobile spirometry to in-clinic spirometry in participants with moderate asthma while taking a long-acting beta agonist (LABA).
The main questions it aims to answer are:
* Do at-home mobile spirometry and in-clinic spirometry assessments show a similar treatment effect (measured changes in FEV1) with the addition of LABA?
* Is at-home mobile spirometry as accurate as in-clinic spirometry in showing treatment effects (changes in FEV1)?
Participants will be asked to:
* Take standard of care LABA treatment once or twice a day
* Complete at-home mobile spirometry testing twice a day
* Complete asthma questionnaires twice a day
* Complete device use questionnaires
* Wear a wrist device (like a watch) to track physical activity and vital signs
* Visit the clinic for in-clinic spirometry testing once a week for 8 weeks