A study, published in the Biophysical Journal, led by researchers at the NIHs National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), has noted that face masks considerably increase the humidity in the air that a person wearing the mask breathes in.

According to the investigators, this higher level of humidity in the inhaled air could possibly explain why wearing masks is tied to lower disease severity in those infected with COVID-19.Of note, hydration of the respiratory tract is beneficial for the immune system. High levels of humidity can potentially decrease the spread of a virus to the lungs by means of promoting mucociliary clearance (MCC)… (HT – ANI, February 13, 2021)