The critical materials inside the clean room, personnel entry, clean room usage surfaces, and material exit surfaces are sampled using transport swabs and evaluated microbiologically.
In areas classified as Clean Room, an air sampler measurement device is used to draw a certain volume of air onto a petri dish, which is then evaluated microbiologically.
TS 11605 EN ISO 14644-1 Cleanrooms and associated controlled environments Part 1 - Classification of air cleanliness
In the clean room, microbiological samples are taken and evaluated from the personnel's hand surfaces, especially those in critical areas and in contact with the product, using transport swabs for analysis.