Why are the pro­duc­ts divi­ded into three cate­go­ries?

Becau­se the­re are dif­fe­rent requi­re­ments for dif­fe­rent are­as of usa­ge. An ope­ra­ting thea­t­re in a hos­pi­tal requi­res dif­fe­rent stan­dard cri­te­ria for a key­board than a recep­ti­on desk at a doctor’s prac­tice. We use dif­fe­rent pro­duc­ts depen­ding on the inten­si­ty of the expo­sure to bac­te­ria or the pro­ba­bi­li­ty that con­ta­mi­na­ti­on might take place.