Are there any bacteria, virus or mold that can withstand ozone?
Bacteria resistant to ionizing  radiation (e.g., Deinobacterium chartae, Deinococcus spp., Desertibacter roseus, Geodermatophilus dictyosporus, Hymenobacter actinosclerus, Kineococcus radiotolerans, Methylobacterium radiotolerans, Microbacterium radiodurans, Paenibacillus darwinianus, Pseudomonas radiora, Rubrobacter radiotolerans, Spirosoma radiotolerans, Streptomyces radiopugnans; for links to the paper describing these species, see: Bacteria I. Names), can be expected to withstand higher doses of ozone compared to bacteria sensitive to ionizing radiation.

The sensitivity to ozone of different strains of the same bacterial species can differ markedly if the strains differ in the efficiency of DNA repair mechanisms. 



Brinkman et al. (1964) Radiomimetic toxicity of ozonised air. Lancet 1: 133-136.

https://www.ncbi.nlm.nih.gov/pubmed/14074479



Hamelin &amp; Chung (1976) Rapid test for assay of ozone sensitivity in Escherichia coli. Mol Gen Genet 145: 191-194.


  ozone resistance is probably involved with DNA repair mechanism


https://www.ncbi.nlm.nih.gov/pubmed/778585