Those parts of the hospital are confined spaces

Operating rooms and ICU wards. An operating room is a confined space that usually has equipment such as an operating table, surgical lights, and monitors. During surgery, healthcare professionals need to be inside the operating room to perform operations, and patients need to be enclosed in the operating room to receive surgical treatment. An intensive care unit (ICU) is also a confined space that usually has equipment such as ventilators, cardiac monitors, and oxygen monitors. Patients in this area require a high level of medical supervision and treatment to keep their vital signs stable.