The Sint-Dimpna Hospital in Geel is a regional hospital with almost 300 in-patient beds. The organisation has 900 staff and 100 specialist physicians.

In conjunction with the people based in the technical support department and the nursing staff, Hamster Cleaning has cleaned the air ducts several times. Several services were involved: maternity, social services, the pharmacy and the laboratory. In the laboratory, accelerated duct cleaning took place, whereupon within a 24-hour period, large-scale duct cleaning was completed.