Researchers at Centers for Disease Control and Prevention have said that preventing smoking in your apartment may not be enough as you may be affected by your neighbor's cigarettes.
According to the study nearly 29 million Americans are affected by second hand smoke despite ensuring that they have a smoke free apartment or condos.
The director of CDC's Office on Smoking and Health, Tim McAfee said that many are not aware that they may be exposed to second hand smoke from seepage between one unit to another and added that the only way to prevent it would be to ensure building wide smoking ban.
"A quarter of all Americans live in some form of multi-unit housing, and these individuals and families are potentially exposed to secondhand smoke that enters their home from somewhere else. Even if they had a smoke-free home rule, they are being involuntarily exposed to secondhand smoke from their neighbors", McAfee said.