Light Source

Radiant Exposure

Bacterial/Fungi species/strains

Inactivation efficacy

254 nm UVC

15.54 mW/cm²

MRSA, VRE antibiotic susceptible strains of S. aureus and E. faecalis

Illuminated 5 seconds, 99.9% MRSA and VRE inactivation; illuminated 9 seconds, 100% MRSA inactivation; illuminated 45 seconds, 100% VRE inactivation

254 nm UVC

5 mW/cm²

MRSA, Streptococcus pyogenes

Illuminated 5 seconds, methicillin-resistant, coagulase-negative Staphylococcus and Streptococcus pyogenes inactivation; Illuminated 15 seconds, methicillin-susceptible S. aureus and Enterococci species inactivation

265 nm UVC

1.93 mJ/cm²

S. aureus, E. coli, Pseudomonas aeruginosa, S. pyogenes

Illuminated 1 seconds, 100% inhibition for all strains

254 nm UVC

1500 mJ/cm²

catheter biofilms of E. coli, coagulase-negative Staphylococcus, E. faecalis, Streptococcus, P. aeruginosa, Coryneforms

Mean killing rates of the bacteria in catheter biofilms were 89.6% (11.8 mJ/cm²), 98% (47 mJ/cm²) and 99% (1500 mJ/cm²)

254 nm UVC

120 mJ/cm²

Trichophyton rubrum, T. mentagrophytes, Epidermophyton floccosum, Microsporum canis.

3 - 5 log10 of fungal inactivation

UVC

15.54 mW/cm²

bacteria (P.aeruginosa and Mycobacterium abscessus) and fungi (Candida albicans, Aspergillus fumigatus)

Illuminated 3 - 5 seconds, 99% bacteria inactivation; Illuminated 15 - 30 seconds, 99% fungi inactivation