□ KOSHA has posted a warning with concern of suffocation accident in confined space such as septic tank and manhole during summertime and sought for the accident prevention measures.

□ More than ten fatal accidents in confined space occur every year, and high temperature and moisture in summertime raise risk of the accident.

□ Following the posting a warning, KOSHA made manuals by workplaces and contributed to manhole/septic tank-related workplaces with collaboration of local agency and relevant association. Also it rents safety gears such as oxygen meter or mask for free.

○ The manual divides works which have high risk for suffocation into three categories and describes how to measure hazardous gas, ventilation, safe work process and accident prevention measures.

○ Any local agency or enterprise wish to rent safety gears from KOSHA, apply for the safety gear rental service at KOSHA website.

□ Director of Occupational Health Bureau said, "principle, contracted company and workers should share information of hazard, and confined space work should get a permission before start a work", also "hazardous gas measure and ventilation are necessary for confined space work, and if accident occurs, rescuers should wear protective equipment."