Notice of RetractionStudy on CO2 Concentration of Guest Room

Indoor carbon dioxide concentration was taken as the research object in the paper. The relations between CO2 concentration of guest room and the open and close of the bathroom's door have been simulated by numerical simulation method. Result shows it has little effect on CO2 concentration indoor that the bathroom door is full open or full closed. The slit size of bathroom's door will only affect the pressure different between the internal and external, and it will have little effect on airflow. The volume of fresh air has no influence on the distribution of CO2 concentration indoor.