Leading hygiene institutes such as the Robert Koch Institute (RKI) recommend to use a thermal, machine disinfection process to clean care utensils. Disinfection performance is defined by the A0 value.
... is a way to measure how many microorganisms are killed or inactivated in moist-heat disinfection processes.
... is a disinfection parameter that should be reached on the surface of medical devices.
... is based on effectivetemperature-time ratio.
... can be measured using a data-registration device called thermologger.
... is defined in the following norm: EN DIN ISO 15883-1.
Low temperatures for a long contact time
= same efficacy =
as high temperatures for a short contact time
Theoretical reference values
- (Possible) microbial contamination with bacteria, fungi, temperature-sensitive viruses like coronaviruses and noroviruses
- No heat-resistant, disease-causing microorganisms
- Contact with damaged skin (e.g. bedsores)
- for diseases involving thermostable viruses (e.g. hepatitis viruses)
– Minimum –
As per DIN EN 15883-3, an A0 value of 60 may be sufficient if there is certainty that the bedpan will never come into contact with even mildly damaged skin and that no heat-resistant pathogens are present. However, to protect health, its use is not advised.
MEIKO washer-disinfectors can be activated with your required A0 value at any time. To achieve this, our machines are fitted with several possible settings in the factory.
with MEIKO Airstream (option)
A0 600 (from 2008)
A0 3,000 (from 2013)
A0 3,000 (from 2005)
A0 12,000 (from 2021)