The water purification unit directly provides the wifiap model, the mobile phone is connected directly to the smart chip inside the water purification unit, and can communicate directly with the water purification unit and perform regulatory control. The water purification unit can be alerted by mobile phone in case of failure or change of filter cores, and directly feed back to the user and to headquarters. Headquarters does not need a telephone call from the user to advise that within 24 hours, specialized maintenance staff will come to the door to address the problem and all concerns will be resolved for the user. Pleasant water-purificationers, with healthy household electricity as their primary product, with environmental, low-carbon, energy-efficient development at the centre of ro technology, high standards of product quality, perfect products and services for users with international product quality and technological content, have gained high visibility and reputation in the...