Do you want to ask something different? The water boiler is a simple water heater, which is convenient for people to drink hot water, but it can't effectively avoid the phenomenon of boiling water, which is its biggest shortcoming; The water purifier has ultrafiltration machine and Ro reverse osmosis machine, and the water filtered by these two machines is different. The water filtered by ultrafiltration machine is mineral water, which retains some minerals in the water and has high precision of reverse osmosis filtration. The filtered water is pure water, but there is a lot of wastewater, which is not very environmentally friendly.