Fahrenheit 451 part 1 what two parts of mildred had to be cleaned

The answer is her blood and her stomach. Two technicians come with machines—one to pump out Mildred's stomach, the other to change her blood with fresh, clean blood. The pump is also armed with an Eye, a device that allows the machine's operator to clean out of the depression from a patient. The technicians use their machines to draw out all the sadness out of a person and merely dispose of it like garbage. No one talks or even recognizes the fundamental causes of unhappiness. The technicians talk while they work, and Montag grows more distressed. They finish, charge him $50, and left to take another call for a similar case in the neighborhood.