The noise levels to which patients in intensive care units are exposed are significantly higher than the levels recommended by the World Health Organization (WHO) for such areas. A reduction in noise levels in the ward, particularly at night, has a beneficial impact on the working environment and the recovery process for patients. A significant challenge is the frequent change of room for staff between wards and functional areas, as well as the management of noise levels generated by conversations between medical staff, patients, and relatives. The 24LUMO algorithm has been developed to identify and signal noise events that could disrupt patient sleep. The signals are made visible to staff in the hallway via the light ceiling, for example in the base area or in the hallway, as a silent visual alarm—e.g., a red light in the side area of the light ceiling.
