“Secondhand smoking was harmful and neglected” was the theme of the propaganda, and was broadcasted as public service advertising. This advertisement aimed to teach people the dangers of smoking and smoking around others. “SHS Invisible Killer-Office” was developed from an original ad concept from the United Kingdom and depicted the effects of secondhand smoke on smokers and non-smokers in a typical office environment [17]. Persons can watch the smoke-free advertisement through the mobile phone of the client. The advertisement was also available via street LED to reach people in the community.