CounterClean E Counter Clean E is a special enzymatic-katalytic acting cleaning solution forhematology counters and other cell counters, in particular for the removal of undenatured protein deposits. The base effekt is optimal deproteinising of all proteins in the cell counter. The proteins are cleaved into the amino acids and dissolved. There is no denaturation of proteins as from "normal" cleaning products (Note: Denaturated proteins cannot be resolved). Counter Clean E is recommended by leading instrument manufacturers and also sold under other trade names.