Nemesis eH2O is effective on:
Bacteria
Campylobacter jejuni
Escherichia coli including (0157)
Enterococcus species
Helicobacter pylori
Listeria
Legionella pneumophila
Pseudomonas aeruginosa
Staphylococcus aureus (including MRSA)
Samonella cholerasuis
Mycobacteria tuberculosis
Mycobacterium avium intracellulare
Acineobacter baumannii
Bacterial Endospores
Bacillus cereus
Bacillus subtilis
Clostridium difficile
Clostridium sporogenes
Fungi
Aspergillus niger
Candida albicans
Trichophyton mentagrophytes
Viruses
Adenovirus type 4, Bacteriophage MS2,Hepatitis A & B, Herpes type 1, HIV-1
Infectious bronchitis, Influenza including H1N1, H5N1 and H7N9, MS2 virus
Norovirus (Human and Murine), Orthopoxvirus, Polio enterovirus 1 & 2,
SARS-CoV-2 and all Coronaviruses
Yeasts
Zygosaccharomices bailii
Candida albicans
Moulds
Botrytis (grapy mould)
Powdery mildew
Protozoa
Cryptosporidium muris
Cryptosporidium parvum
Please note: This is not an exhaustive list. Contact us for advice on any other pathogens.
Nemesis eH2O is supplied as a ready-to-use solution of 500ppm stabilised hypochlorous acid. This was the concentration employed in all of the Nemesis eH2O certification tests and in the efficacy evidence provided to the European Chemicals Agency (ECHA) to achieve active substance approval under the Biocidal Products Regulation (528/2012) Parts 1, 2, 3, 4 & 5.
Hierarchy of Microbial Resistance to Disinfectants
| Microorganism | Aqualution (Nemesis eH2O) BS EN tests | |
| Most Resistant -- > | Spores (eg C. difficile) | BS EN 13704:2002 |
 |
Mycobacteria (eg M. tuberculosis) | BS EN 14204:2012 |
| Non-Enveloped Viruses (eg Norovirus, Polio) | BS EN 14476:2013 | |
| Fungi (eg Candida albicans) | BS EN 13697:2001 | |
| Bacteria (eg MRSA, VRE, Acinetobacter) | BS EN 1276:2009; BS EN 13697:2001; BS EN 1656:2009 | |
| Most Susceptible -- > | Enveloped Viruses (eg Coronavirus, HIV, Influenza) | BS EN 14476:2013 |
| Adapted from Spaulding, 1957 and Rutala and Weber, 2014 | ||
The table above shows that enveloped viruses (such as that which causes COVID-19) are particularly susceptible to antiviral disinfectants.
All Nemesis eH2O products are tested to rigorous international standards and Nemesis eH2O is fully authorised under the Biocidal Products Regulation (BPR, Regulation (EU) 528/2012) for Parts 1 to 5 (Part 1: Human hygiene, Part 2: Disinfectants and algaecides, Part 3: Veterinary hygiene, Part 4: Food and feed area, Part 5: Drinking water).
Nb. Following Brexit, access to lists of approved disinfectants is available via the Health & Safety Executive website.
| International Standards | Log Reduction | %age Kill | |
| Bacteria | EN 1276:2009; EN 13697:2001; EN 1656:2009 | >6 | 99.9999 |
| Spore-forming bacteria | EN 13704:2002 | >3 | 99.9 |
| Viruses | EN 14476:2013 | >4 | 99.99 |