The operating temperature in an ethylene oxide sterilization during a warm cycle is -
Temperature between 49 & 63degC is used, which is comparatively a lower temperature. Used for aicles that cannot withstand higher temperatures. REF:textbook of microbiology, Ananthanarayan and Paniker.
20-35 o C
49-63 o C
68-88 o C
92-110 o C
general microbiology