Research Article

Spreading a Durable Protective Layer of Quaternary Ammonium Agents on an N95 Respirator for Predecontamination of Airborne Mycobacterium tuberculosis and Viruses Using Mycobacterium smegmatis and Bacteriophage MS2 as Models

Figure 5

Phase two testing for the predecontamination efficacy of the GS75-coated outer layer of the N95 respirator against M. smegmatis, E. coli, and MS2 phage, with 104 (a) and 105 (b) CFU or PFU/m3.
(a)
(b)