If your stethoscope needs to be disinfected, wipe with a 70% isopropyl alcohol solution. Do not use hand sanitizer as a cleaning agent as there are additives that may damage parts of the stethoscope. Do not immerse your stethoscope in any liquid, or subject it to any sterilization process. Keep your stethoscope away from extreme heat, cold, solvents and oils. Tunable diaphragms can be removed from the chestpiece and their surfaces wiped with alcohol or soapy water. Dry all parts thoroughly before reassembly. Eartips can be removed from the eartubes for thorough cleaning. For safety, snap eartips firmly back onto the ribbed ends of the eartubes.