Fig. 3. Residual biofilm percentage after treatment of study detergents. The percentage OD620 after treatment divided by baseline OD620 before detergent treatment was expressed in gray scale with shaded box for the corresponding range. The shade and biofilm removal of each well were inversely correlated. The study detergents included two enzymatic cleaners EmpowerTM (Metrex, Orange, CA), CidezymeTM (Johnson and Johnson Medical Inc, Arlington, TX), one non-enzymatic cleaner Matrix mintTM (Whiteley Medical, Sydney, Australia). A chlorine bleach YuhanroxTM Regular (Yuhanclorox, Seoul, Korea) was also tested as a control. Abbreviations: DW, distilled water; RT, room temperature.