What is the Sanitize cycle and are there any restrictions on using it?

The SANITIZE cycle is designed to kill bacteria in clothing and is NSF-certified to reduce 99.9% of bacteria on laundry. When selected, the temperature is automatically set to HIGH and the dry level to EXTRA DRY, and these default settings cannot be changed. Do not use this cycle with delicate items or fabrics, and steam cannot be added to the SANITIZE cycle. (Page 21, 25)