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Automated H2O2 room disinfection solutions

Disinfection validation testing with Geobacillus stearothermophilus

Disinfection validation testing using spore strips with Geobacillus stearothermophilus

Disinfection validation testing

DioSpore Controller “closed germ-carriers”: Bioindicators with Geobacillus stearothermophilus

German guidelines by Robert-Koch-Institut (RKI), European norms as well as international standards recommend a reliable disinfection validation testing of H2O2 room disinfection procedures with spores such as Geobacillus Stearothermophillus. These spore strips are enriched with blood and also wrapped up in a special membrane in order to prevent operating errors and wrong results.

This microbiological method meets standard DIN EN 11138. 1-3 DioSpore controllers per 15m3 are recommended in order to achieve a gapless validation.

Advantages of disinfection validation testing with DioSpore-Controllers

  • A risk of contamination for people who get in touch with the bioindicator is excluded for technical reasons
  • The handling of the bioindicators is very easy due to the safe membrane technique
  • Storage and transport of the bioindicators are uncomplictated
  • The risk of recontamination after use is not possible. This leads to 100% safe disinfection validation results (“closed germ carriers”)
  • The placing ot the bioindicators is self-explanatory as they can be put anywhere in the room (also beneath the ceiling through a prefabricated opening)
Certified disinfection validation

European certified disinfection validation

Safe validation

Easy, quick, reliable and safe disinfection validation without any risk of recontamination due to “closed germ carrier” concept

Reliable validation

Clinically proven and scientfically tested validation method


Disinfection validation according to International standards and European norms

DioSpore-Controller product features

Short overview about the basic data of DioSpore Controller bioindicators:

Material The testing spores of DioSpore-Controllers are coated by a mechanically, chemically and thermally stable membrane
Dimensions 130 x 42 x 1 mm (H x W x L)
Weight about 1.5 g
Batch system Yes, every DioSpore bioindicator has a unique ID number
Number of controllers for room disinfection 1-3 DioSpore-Controller for every 15 m3, but for conclusive validation test, use at least 7 pieces + 1 transport control
Expiration date 24 months from date of delivery
Specification 2 x 10Geobacillus stearothermophilus (front and backside of bioindicator)
Standard DIN EN 11138
Purpose Disinfection validation of hydrogen peroxide room disinfection / aerosolized Hydrogen Peroxide (aHP) in cleanrooms, laboratory environments and for highest disinfection requirements
Log reduction 6 log (99,9999%)
Test spores Geobacillus stearothermophilus ATCC 7953
Seller DIOP GmbH & Co. KG / Germany

DioSpore-Controller impressions

Disinfection validation testing

USP disinfectant validation

Bioindicator Geobacillus stearothermophilus