"Inhalation of vapor obtained by nebulization of water and ethanol in oxygen has been used in treatment of pulmonary edema in humans.[10] Alcohol vapor acts as an anti-foaming agent in the lungs, so the sputum becomes more liquid, and can be easily expelled."
Pulmonary edema is a condition with overwhelming fluid in the lungs, which is one of the worst effects of COVID and in conjunction with inflammation is why folks need ventilators.
Regarding Alcohol (aka the most common disinfectant)
https://en.wikipedia.org/wiki/Alcohol_inhalation#Medical_applications
"Inhalation of vapor obtained by nebulization of water and ethanol in oxygen has been used in treatment of pulmonary edema in humans.[10] Alcohol vapor acts as an anti-foaming agent in the lungs, so the sputum becomes more liquid, and can be easily expelled."
Pulmonary edema is a condition with overwhelming fluid in the lungs, which is one of the worst effects of COVID and in conjunction with inflammation is why folks need ventilators.