A study on the characteristics of particle size distribution for droplets expelled from the cough simulator

초록

Infectious pathogens are known to be transmitted via respiratory particles expelled from human activities such as coughing and sneezing. Studies have shown that particles generated from respiratory activities widely range from 0.01 up to 500μm depending on the factors such as relative humidity and mucus properties (Gralton et al. 2011). Determine the particle size that possibly contains infectious pathogens has important implications for understanding the airborne infection mechanism.In this study, the unique cough simulator that can mimic and reproduce the human’s cough as needed was developed to study the physical characteristics of expiratory particles.