Dr. Messina: In our study we suggested how to implement fluorescent marker with bioluminescence and microbiological methods. The use of one of these procedures should not exclude the others, since each analyses different aspects of the operations required to achieve environmental cleanliness.
LuminOre CopperTouch Surfaces have a built in marker that develops a tarnished surface if not properly cleaned. There is no question that this marker develops because of inadequate cleaning.