Home water purifier can choose direct drinking machine. There is a standard for direct drinking machine, that is, it must be RO reverse osmosis membrane water purifier to realize direct drinking. Other ultrafiltration and nanofiltration are only for domestic water and cannot be drunk. If there is demand, of course, you can choose this. The reason why I suggest you buy a direct drinking machine is: 1. Direct drinking machine can be drunk directly. It's summer. When you get home from the outside, you are thirsty. You can save hot water and turn on the tap to drink directly. Very convenient. There is no scale in the water quality of the direct drinking machine. Even if hot water is boiled in a kettle in winter, white water stains will never appear at the bottom of the kettle. 3, direct drinking machine saves money, the pure price of a bottle is two yuan, and the family drinks water at least 10 yuan a day and 300 yuan a month. Some people say that it is cheaper to buy bottled water, but bottled water needs to be delivered to the door by a water master, and this time is sometimes uncontrollable. In case one day, your mouth is thirsty and you want to drink water, and the water owner can't deliver the water to you in time, then

As for how many years the Mu Chen water purifier can be used, it depends on the maintenance of the machine at ordinary times. It usually takes ten years to solve the problem. The water purifier is just a product that consumes the filter element, and always changes the core without changing the shell. No big problem. The shell does not need to be changed, and the machine can be used all the time.