After a comprehensive audit, the airport received the “DEKRA Trusted Facility” seal. The independent testing company DEKRA uses this seal to evaluate hygiene standards and preventive measures against the spread of the coronavirus. The seal certifies that effective measures have been implemented and are continuously monitored. The criteria for the grant are based on the guidelines of the World Health Organization (WHO).

In addition to an extensive interview, the review process also includes an on-site audit. DEKRA auditors check the measures taken at regular intervals using a checklist. More than 100 criteria with different weightings come into play. In addition to disinfection and cleaning measures, the assessment at Düsseldorf Airport also included routing and information for passengers, distance rules and ventilation in the passenger areas. Also the check-in areas, waiting rooms, gates, baggage claim and shops were included.