Hygiena MediCheck™ is reliable and easy to use, developed for hospital instrument maintenance and for monitoring the pinch point of endoscopes, irrigation machines and various instruments. It detects protein residue on surfaces due to unsuccessful cleaning. It requires no equipment investment (a small thermoblock or incubator is sufficient), results are obtained quickly (30 min) and the detection limit of the test is very low (3 µg). This not only controls the operation of the purifications but also the risk of toxic nitrogen compounds being generated during autoclaving. Hygiena MediCheck™ is an affordable and very easy to use test for nursing homes, dental clinics, veterinary clinics and hospital instrumentation.