The goal of this observational study is to determine if using the SiA® (Systematic Intervention Agent) system can improve inhaler technique and medication adherence in adults with asthma who are already using Trimbow pMDI inhalers. Furthermore, it will be addressed if the SiA® system can be used to discriminate between patients, where increased inflammatory markers are caused by incorrect inhaler technique/adherence to medication or patients that have ongoing inflammation requiring adjustment of therapy. Potentially those who might become candidate for biological treatments. The main questions it aims to answer are: * Can the SiA® system improve inhaler use and medication adherence in asthma patients? * Does improving inhaler technique and adherence lead to better asthma control and reduced airway inflammation (measured by FeNO levels)? Participants will: * Use the SiA® system, which includes a smart inhaler cap (RespiPRO™) and a mobile app * Continue their prescribed Trimbow pMDI treatment for asthma. * Have their asthma control, lung function, and FeNO levels monitored at specific points over 1 year (3 months and 12 months). The study does not have a comparison group and all results will be compared to baseline.