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 4

MS2 phages on the surface of untreated N95 respirators (A1–A3) and GS75-coated N95 respirators (B1–B3). These images were observed in three fields by TEM and acquired under a magnification of ×150.0 k.
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