Touch the "timing" function key, the timing function indicator will light up (white light), and the digital screen will display 05 minutes by default (each tap increases by 5 minutes, up to 30 minutes, and when it reaches 30 minutes, press it again to become 5 minutes, cycle in turn), the indicator flashes three times, the machine starts, the generator head ambient light lights up the hydroxyl water ions and starts to work, the purification is over at 0 minutes, and the machine automatically shuts down after three long beeps.