AHUs	Air Handling Units
ASHRAE	American Society of Heating, Refrigerating and Air-Conditioning Engineers
HAIs	Hospital Acquired Infections
HVAC	Heating, Ventilation, and Air Conditioning systems
IAQ	Indoor Air Quality
IEQ	Indoor Environmental Quality
NHS	National Health System
SARS-CoV-2	Severe acute respiratory syndrome Coronavirus 2
VOCs	Volatile Organic Compounds
WHO	World Health Organization