a procedure in the instance where brush element 14 is not integrally formed as a part of the housing bottom surfaces of depressions 16a and 16b such brush elements 14 may be permanently or at least securely attached to the bottom surface of at least one of the depressions but preferably each of depressions 16a and 16b and may be any abrasive material such as the hook portion of velcro u00ae hook and loop brand of closure astroturf u00ae brand of floor covering brush element 14 may also be absorbent and made of a material such as a rough sponge material wool or a rough cloth material such as terry cloth fig5 illustrates how apparatus 2 is compressed by the hand of the operator 42 to bring brush element 14 in contact with the instrument to be cleaned 40 another embodiment of the invention is shown in fig6 which has a breakable bubble 20 of cleaning or disinfecting solution 22 disposed within chamber 18 and conveniently on a surface of one of brush elements 14 such that bubble 20 is broken and solution 22 is released upon compression of chamber 18 and insertion of the instrument 40 as illustrated in fig7 the cleaning or disinfecting solution may be any conventional solution used to remove soil or to kill microorganisms apparatus 2 may also have a flexible closing substantially funnel shaped entry barrier 24 in a side wall of depression 16b instead of entrance slot 8 such.