Omidbakhsh, Ph.D, P.Eng.; F. Ahmadpour, H.BSc. Results suggest that ATP meters cannot be relied upon to evaluate the disinfection of a healthcare surface, since they have limitations in detecting the true count of organisms on the surface, which can cause false confidence. Furthermore the cleaning/disinfecting chemistry residues can have a very adverse impact on ATP readings, which can once again lead to increased false confidence.”ld, BS, CMAR, RLATG; Ma ew Mihalik, ALAT; Lindsay Bihler, MBA, RLATG