Fight against Legionella: In order to be able to wholly and professionally tackle the topic of "Hygiene," in 2015 a team of experts was created by TÜV AUSTRIA HYGIENIC EXPERT GMBH. The company develops national and international facility specific quality assurance systems to comply with all legal and normative requrements in conjunction with drinking water hygiene, especially with the Legionella problem. Here we present you the five inspection steps.