The hand-washing faucets in the clean area of ??the static distribution center should be delay valves. The hand washing faucet in the clean area of ??the static distribution center should be a delay valve or a foot-operated valve. After changing, the dosing nurse enters the first dressing room and uses the handwashing faucet in the clean area of ??the static dispensing center to wash, disinfect and air-dry her hands and forearms. She enters the second dressing room and puts on a disposable mask, cap and sterile gloves, and a sterile coverall. Enter the configuration room with clean shoes.