At the office there are always people who smoke. Approximately 25% of office workers smoke. Thus the employer faces the choice of whether or not to invest in an indoor solution. Ultimately there are more advantages to an indoor solution and smoking in the office is the best choice. Just consider the time required to walk to the designated outdoor location. In some buildings this is a five-minute walk. And making frequent trips outside (quickly, without a jacket) can entail an extra risk of becoming ill. Furthermore, having a group of people standing outside the door smoking is not particularly positive for the image. An indoor solution is the most image-friendly, low-cost solution (lower chance of absence due to illness + less time spent walking = greater productivity). Offices are subject to strict rules for ‘smoking at work’. The smoking room must be sealed, and the non-smoker must be well protected.