It is not just laundry that is subject to strict requirements with respect to cleanliness in order to prevent, for example, infections. The cleaning personnel responsible for ensuring that rooms used in the healthcare sector are kept clean also have an important role. The RAL Quality Mark for Commercial Cleaning Services in the Healthcare Sector requires, amongst other things, the use of specially qualified and regularly trained staff for cleaning sensitive rooms in hospitals. Furthermore, the criteria for the award of the quality mark cover all work processes from planning and executing the cleaning work through to dealing with any complaints. Companies are required to produce hygiene plans for hygienic areas that include hygiene and disinfection measures and guidelines with respect to personal hygiene.