Pathogens are organisms, such as viruses, bacteria, fungi or parasites, that can cause infection and life threatening disease. The transmission of infection occurs within the built environment through air and surfaces. It is critically important to consider both aspects when evaluating sanitization options.
Air sanitization alone will remove pathogens in the air but surface contaminants can also be disturbed and turn into airborne contaminants. A study demonstrated that nonpathogenic virus inoculated onto floors in hospital rooms disseminated rapidly to the hands of patients and to high-touch surfaces inside and outside the roomi.