This compound toxic to bacteria, viruses and mold is temporarily released into sealed hospital rooms in order to kill all pathogens present. 그런 다음 프로세스가 끝나면 병실은 신선하고 깨끗하며 안전하며 잔류물이 없는 상태로 되돌아갑니다. This has been a long time in coming, said Dr. Shannon.