Data Analysis The collected data will be reviewed by researcher and cross-check by two independent individuals. The data will be entered into Statistical Package for Social Science (SPSS) version 20 and will be analysed using descriptive and inferential statistical. Questionnaire Part A will be analysed using frequency and mean statistical, the result will be displayed in tables.To analyse the association between subjects' demographic data and knowledge status and inhaler technique Chi-square test or independent t-test will be used. Part B of the questionnaire containing of 20 items asking regarding respondents' knowledge of their disease, medication and treatment maintenance. ". Responses will be made on a three choice of answer. Each of the correct answer will be given scores 1, and 0 scores for wrong answers. Researchers will determined the status of respondents' knowledge in two categories, which is the total score from 15 to 20, is in category of good knowledge and total score from one to 14 is in poor knowledge category. In order to obtain result descriptive statistic (mean(SD) analysis will be performed. For result comparison between statistic (mean (SD) analysis will be performed. For result comparison between intervention and control group Independent t- test analysis will be used. Part C of the questionnaire is to evaluate the respondents' inhaler technique using a single page with multiple types of inhaler technique checklist such as Metered Dose Inhaler (MDI), MDI with spacer, Turbuhaler, Accuhaler, Intranasal device and Handihaler.