Air isolation refers to sterilizing the air to kill viruses and bacteria through the use of equipment such as air filters and ultraviolet lamps. Droplet isolation refers to the prevention of airborne spread of droplets containing viruses and bacteria through the use of equipment such as masks and protective clothing.
Airborne isolation is used in hospitals and other medical settings to prevent cross-infection between patients. Droplet isolation is used in public **** places such as supermarkets, train stations and airports to prevent healthy people from contracting viruses and bacteria.