Purogene® is a Stabilised Chlorine Dioxide (SCD) product containing 2% (20,000 ppm) of Total Available Chlorine Dioxide (TACD). It is specified and used by many Local Authorities, NHS Trusts, property management companies and industrial operations for manual ‘fill & soak’ disinfection of hot and cold water services for legionella control. In addition, Purogene® is probably the most widely used source product for chlorine dioxide production for continuous treatment of hot and cold water systems for bacteriological control (especially biofilm and legionella) in place of high hot water temperatures, or for occasional on-line disinfection where ‘fill & soak’ cannot be used.

Purogene® is a powerful liquid disinfectant that in independent tests has outperformed all other commonly used disinfectants. Purogene® is non-corrosive at in-use concentrations, is unaffected by water pH, does not ‘chlorinate’, leaves no taste or odour and is the primary replacement for hypochlorite and numerous other disinfectants.

Purogene® holds UK approvals for use in water that is to be used for drinking, washing, cooking and food production purposes, and as a disinfectant for water works apparatus, reservoirs and distribution systems. Purogene® holds many other approvals in the USA and worldwide including for use on board ships, and is the specified disinfectant for use in water systems on board aircraft such as the Boeing 737 and 777.


  • Excellent control and removal of biofilm
  • Compliant with EN12671:2009 for the treatment of water for human consumption
  • Superior biocidal performance compared with other chlorine based products
  • Will not form unwanted disinfection by-products such as chloramines or Trihalomethanes (THM’s)


  • Used for the removal and control of Legionella and general biofilm
  • Microbial control within recirculating water systems
  • Disinfection of water to remove slime and odour causing bacteria and enhance the taste of water
  • Specified disinfectant for use on board ships and aircrafts




Test Organism     Contact Time
Escherichia coli O157:H7     1 minute
Legionella pneumophila     1 minute
MRSA     10 minutes
Pseudomonas aeruginosa     1 minute
Salmonella typhimurium     1 minute
Staphylococcus aureus     1 minute
Streptococcus faecalis     1 minute
Aspergillus niger     1 minute
Candida albicans     1 minute


Test Organism     Concentration
Escherichia coli O157:H7     3 ppm
Legionella pneumophila     25 ppm
MRSA     500 ppm
Pseudomonas aeruginosa     5 ppm
Salmonella typhimurium     100 ppm
Staphylococcus aureus     30 ppm
Streptococcus faecalis     100 ppm
Aspergillus niger     100 ppm
Candida albicans     100 ppm


Test Organism     Reduction in micro-organisms
Escherichia coli O157:H7     99.999%
Legionella pneumophila     99.999%
MRSA     Complete Kill
Pseudomonas aeruginosa     99.9999%
Salmonella typhimurium     99.999%
Staphylococcus aureus     99.999%
Streptococcus faecalis     99.99999%
Aspergillus niger     99.9999%
Candida albicans     99.99999%


Health & Safety



  • User Guide
  • Instructions/Guidelines (as per section 6 of Water Disinfection User Manual):
  1. Disinfection of Cooling Towers and Evaporative Condenser Systems
  2. Disinfecting Tanks and Domestic Hot and Cold Water Systems
  3. On Line Disinfection of Domestic Water Services
  4. Water Main Disinfection – Disinfection of Empty Mains Pipe
  5. Water Main Disinfection – Flowing Water Main
  6. Water Storage Vessel Disinfection
  7. Guidelines on The Use of Purogene for HVAC Disinfection
  8. Boeing 777 Maintenance Manual Extract – Potable Water Systems Maintenance