Table A2.
Comparison between the decontamination effectiveness of UVC LEDs and chemical methods.
| Other Methods | Other Methods’ Results |
UVC LEDs’
Results |
Best? | Enhanced Effect? | Biological Indicator | Area | Source |
| 0.05% Chlorhexidine | B (<1, E. faecium) | B (<1, E. faecium) | = | Yes | Bacteria | Health | [23] |
| 0.5% Fumaric acid | na | na | na | Yes 1 | Bacteria | Food | [65] |
| Peroxydisulfate | na | S (>6, E. coli) | na | No | Bacteria | Water | [11] |
| Hydrogen peroxide | na | S (>6, E. coli) | na | No | Bacteria | Water | [11] |
| Hydrogen peroxide | D (>5, E. coli) | D (>5, E. coli) | = | Yes 2 | Bacteria | Water | [58] |
| Ozone | D (>5, E. coli) | D (>5, E. coli) | = | No | Bacteria | Water | [58] |
| Ozone | B (<1, S. typhimurium) | D (>4, S. typhimurium) | UVC | No | Bacteria | Air | [45] |
| Slightly acidic electrolyzed water | na | B (2.3, S. typhimurium) | na | Yes 3 | Bacteria | Food | [63] |
| Slightly acidic electrolyzed water | B (~1.5, L. monocytogenes) | na | na | Yes 1 | Bacteria | Food | [65] |
| Aerosolized slightly acidic electrolyzed water | B (<0.3, S. aureus) | na | na | Yes | Bacteria | Food | [66] |
Notes: “B” represents below disinfection level, “D” indicates that the method reached disinfection level. “na” means “Not available.” “=“ reveals similar results. 1 The authors needed to combine all methods to improve their results [65]. 2 The authors found improved results when combining Hydrogen peroxide, UVC LEDs, and Ultrasound [58]. 3 The authors stabilized their results towards disinfection [63].