Bubble massage is a popular feature on the market today. It is generated by an air pump, which creates noise up to 50-60dB when it's turned on. After using bubble massage for a while, it's important to turn off the bubble function, otherwise it will cause discomfort. If a foot bath uses water pump instead of an air pump, it can produce gushing surfing water and run quietly without disturbing others. This allows for continuous use for a much longer period. As a result, more and more people are choosing to use water pumps instead of air pumps for their foot baths.