Fig. 4

Sanitization of Polypropylene based samples and whole masks. A) Schematic representation of experimental design to include timing and method of sanitization protocols. B) Quantified bacterial growth from each sterilization method type following 24 and 72 h of incubation in LB broth at 370C. * indicates a p < 0.5 when compared to LB broth control. C) Quantified bacterial growth from polypropylene based whole masks following 24 and 72 h of incubation in LB broth at 370C. * indicates a p < 0.5 when compared to LB broth control