Hygiene and safety rules in the Central Library

For your protection, your stay at the Central Library is subject to security measures based on the CAU framework hygiene concept in the context of the COVID-19 pandemic. We ask for your understanding that we cannot grant access to the building in the event of non-compliance or reserve the right to issue a building reprimand.

  • Entry to the Central Library is only permitted with a valid 3-G ID.
  • The mouth-nose protection or FFP2 mask obligation exists without exceptions in the entire house.
  • At all workplaces, the following applies: one person with mouth-nose protection or FFP2 mask per table.
  • The required safety distances of at least 1.5 meters to other visitors must be maintained.

Admission to the building

  • Entering the central library is only allowed with valid 3-G identification:
    Individuals, must be vaccinated or recovered or present a current negative COVID-19 test.
    Verification of current 3-G identification will occur upon simultaneous presentation of a valid photo or student ID via:
    • Olat (students and members of CAU), if the vaccination certificate is on file there.
    • Digital vaccination certificates which are checked with the CovPassCheckApp (e.g. vaccination certificates in the CoronaWarnApp).
    • Vaccination cards
    • Test certificate of a negative antigen rapid test of a medical practice or a test center. This is valid for max. 24 hours.
    • Test certificate of a negative PCR test of a medical practice or a test center. This is valid for max. 48 hours.
    • Individuals who provide a physician's statement indicating that you are not eligible to be vaccinated must also provide a negative rapid antigen test or PCR test.
      Individuals who are unable to wear a mouth-nose protection or FFP2 mask for health reasons must provide proof of this with a certificate.
    • If the 3-G verification is not provided, there is a ban on entering.
  • Please use the two designated entrances to enter the building. Please use our distance markings in the entrance areas to maintain the necessary safety distances from other patrons.
  • Please disinfect your hands with the disinfectants provided when entering the building.

Stay in the building

  • Please move within the pathways at all times, if they are designated.
  • Sanitary facilities are available. They may only be entered individually. Cleaning intervals are increased.

Leaving the building

  • Please use the two designated exits to leave the building. Please maintain required safety distances from other visitors.

General Cleaning

Prior to the library opening from 5 a.m. to 8:30 a.m., all tables and chairs in the open stacks area and restrooms will be cleaned and disinfected. Spray bottles of soapy water and wipes are available for cleaning surfaces of individual workstations in use. A note is affixed to each table stating, "Please clean the table surface after using your individual workstation and leave it as you found it."


The Central Library has an automatic room air handling system (RLTA).
The Building Management division in the Technical Operations and Service department is responsible for regularly checking that it is operating without errors or interruptions.
The interaction of on-site observations (represented by the janitor) with the "Technical Operations and Service Unit" ensures that failures of the ventilation system are noticed very quickly and that appropriate measures can be taken for user operation.
If areas are no longer supplied with sufficient air exchange (fresh air and exhaust air) by a functioning RLTA, they must leave the affected workstation areas.

Building Measures

All construction measures are described in the hygiene concept.