Healthy cilia are the filters that help keep bacteria at bay and remove particles to keep us breathing easy
Cigarette smoke exposure and inflammatory signaling increase the expression of the SARS-CoV-2 receptor ACE2 in the respiratory tract
Testing air quality monitors, however, involves an extra layer of complexity
1984 Chemical Carcinogens
Although the sailor influence is evident here, the informal history is considerably more interesting 1 Berthold Laufer, "The Introduction of Tobacco into Europe", Field Museum of Natural History, Department of Anthropology, Chicago, Leaflet Number 19 , 1924, pp
As for age, I think it best you send a pouch out to Simon and one to myself for further investigation :: Good try, Jay but I'm on to ya