The present invention concerns a device (10) for improved hygienic monitoring of individually ventilated caging (IVC) rack systems (100) for laboratory animals and method for contamination-free removal of biological samples from unwanted organisms from the IVC-rack system. The device allows the performance of sampling operations on a ventilated shelving system in a safe and effective manner, without interfering with the ventilation air flow. The method of the invention allows the removal and transfer of the biological sample from inside the IVC-rack in a contamination-free manner by enabling a safe transfer of the sample from inside the IVC-rack system to any further processing procedure for analysis of the biological sample outside the IVC-rack system. It is also an object of the present invention to provide a device which is adapted to be used also on existing ventilated shelving systems, allowing the refitting of existing IVC-rack systems.
