The flow rate per minute of a mouth shower refers to the amount of water the mouth shower dispenses during one minute of use. This parameter is important for assessing the performance of a mouth shower and its ability to provide enough water for effective mouth rinsing and tooth brushing. A high water flow rate per minute can be beneficial for the rapid and effective removal of food debris and bacteria from the oral cavity, which contributes to overall gum and dental health. Users can optionally adjust the water flow rate to their preference.