![Number of air changes may be reduced when the room is unoccupied if provisions are made to ensure that the number indicated is reestablished any time the space is being utilized.](https://www.litthinking.com/wp-content/uploads/2023/08/learn-b-4.jpg)
US CDC / July, 2019
“Lack of adherence to established standards and guidance (e.g., water quality in dialysis, proper ventilation for specialized care areas such as operating rooms, and proper use of disinfectants) can result in adverse patient outcomes in health-care facilities.”