Fig. 4From: Disinfection efficiency test for contaminated surgical mask by using Ozone generatorPotential of O3 to kill a P. aeruginosa b S. aureus and c Aspergillus spp. at different intervals (0 min, 15 min, 30 min, 1 h, and 2 h) in the small box (0.53 m3) and large box (1.6 m3) compared to the untreated controlBack to article page