👉 Viral fumes refer to the unpleasant, often acrid odors that can permeate indoor spaces during viral outbreaks, particularly when people are sick and their respiratory secretions are present. These odors are primarily caused by the release of volatile organic compounds (VOCs) from mucous membranes, especially in the nose and throat, which contain high concentrations of mucus. When individuals with colds, flu, or other respiratory viruses cough, sneeze, or even exhale, these secretions can become airborne, carrying strong, irritating chemicals that create a pungent smell. The term "viral fumes" is often used colloquially to describe this phenomenon, highlighting the discomfort and sometimes the stigma associated with being sick.
