microdroplet
Medical term for very small airborne droplets, often discussed in infection control contexts.
Microdroplets can float in the air for a long time.
As a countermeasure against infectious diseases, ventilation to prevent the spread of microdroplets is important.
Compound of マイクロ (micro) and 飛沫 (droplet, splash). The term became widely used during the COVID-19 pandemic to describe small respiratory droplets.