The problem zone
Sink drains under wash basins in clinics and hospitals are open pathogen reservoirs and sources for emitting bacteria.
They contain on average 105-1010 CFU/ml of bacteria, including 103-106 CFU/ml of gram-negative rods.
Water flowing into the sink drain produces aerosols on the surface of the seal water which can emit the bacteria up to a distance of 1.5 metres around the siphon.
In case of bacterial contamination of the seal water of >105 CFU/ml so many micro-organisms are carried into the air in the room that a measureable transmission of bacteria from the seal water to the hands of patients or staff takes place.
Numerous clinical investigations prove: conventional sink drains do not fulfi l the high hygiene standards needed in invasive intensive care.