Brief Answer: Ask administration to make smoke free zone Detailed Answer: Hi, Thanks for your query. Passive smoking or environmental tobacco smoke is unintentional inhalation of smoke by a non smoker, due to smoking habits of colleagues. Naturally the concentration of smoke increases with closeness of the area, available cross ventilation and frequency of smoking habits in term of people and amount of cigarette smoked. If you smell a cigarette smoke means that some amount has diffused through the air to your nose. More over if inadequate cross ventilation is there, the risk increases. If they can smoke close to the door, then why not outside.... If possible request them politely or ask the administration to make it a smoke free zone. Best wishes

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