Table 2.

Indoor air factors in inpatient room.

Criterion	Field of interest	Influence	Focus
Design factors	They refer to all the components that characterize the inpatient room (room dimensions, furniture, finishing, etc.)	Their emissions are constant, although in relation to their life, the emissions may decrease over the time	(i) Dimensional aspects, room configuration, and door motion (ii) Finishing materials and furniture
Management and cleaning activities	They refer to the management and maintenance activities, ventilation systems, cleaning and disinfectant activities, etc., carried out in the room and in the functional units	They can highly affect the indoor air, but their emissions can be controlled through the applications of strategies, and in the same time, they can be changed if their actions are dangerous for users	(i) Cleaning and maintenance activities (ii) Ventilation systems (iii) Maintenance and operational strategies
Human presence and activities	They refer to the presence of users, their health status, and the medical activities carried out in the inpatient room	Their presence and application can vary, and therefore they can affect the indoor air in different modes. In general this component does not affect highly the indoor air performances	(i) Human behavior (ii) Medical activities (iii) Medical equipment
Outdoor and microclimatic factors	They refer to the outdoor air, the solar exposure, and microclimatic parameters	Although these factors can vary, they have a great influence on the indoor air and the performances of materials in the room and air fluxes	(i) Outdoor issues and site localization (ii) Microclimatic parameters (iii) Solar exposure