Cidex OPA Solution is a fast and effective way to disinfect a wide range of medical instruments and endoscopes. A (0 .55%) Ortho-Phthalaldehyde solution is effective at room temperature and has excellent Tuberculocidal and high level disinfection capabilities. 12 min disinfect at 20 degrees Celsius, glut free, low level Ortho-Phthalaldehyde with no surfactants, no activator, no mixing required.14 day reuse life and 2 year shelf life.