Global infection control experts agree: Microbial resistance/tolerance has reached critical levels. There are multiple causes, but high up on the list are i) incorrect/ineffective cleaning methods and ii) inappropriate use of disinfectants – particularly the application of insufficient active ingredient to ensure eradication of organism populations rather than ‘control’*. Chlorination is effective because of its unique ability to break down the microscopic protein biofilm shielding organisms and control odor formation.