9-13 
 
9.13.3 O
2
 Therapy Timer 
Select the O
2
 Therapy Timer area in the top left corner to access the window as shown below. 
 
 
Select [Stop]/[Start] to stop or start timing. Select [Reset] to reset the displayed time of the 
timer. 
 
Enter the number of timing minutes in [O
2
 Therapy Time Setup] to start the timer. When the 
set time is equal to the time of the timer, the system gives prompt sound and O
2
 supply is not 
interrupted. The O
2
 Therapy Timer area flashes until you preform the following operations: 
  Stop the timer, or 
  Adjust the set time, or 
  Exit the O
2
 Therapy 
 
9.13.4 Switching off O
2
 Therapy 
During O
2
 therapy, select the [Standby] key to enter Standby status after confirmation, so as 
to switch off the O
2
 therapy function.