A, look at what it is:

Chemical water system or physical water system, the so-called electrolytic water machine is chemical water system, so do not choose through the chemical reaction process of water purifier and choose physical water system water machine.

Second, it is coarse filter or sodium filter, coarse filter and ultrafiltration can not filter clean, sodium filter can distinguish whether the sodium filter machine has high pressure pump, because the sodium filter aperture is only 0.0001 micron, the water pressure of tap water can not let the water through, must be through the high pressure pump can be done. So you have to use electricity

Three, to see whether it is pure water or live water, that is, to see whether it has energy activated filter element after RO filter element

Iv. TDS value: 0-5 pure water,5-50 activated mineral water, 50-120 secondary drinking water, 120-180 pipe network polluted water, and industrial polluted water above 180

Five, the rational consumption, consumer is buying water purifier should be rational to face at the same time introduced the different ways by different water purifier manufacturers, water purifier is not disposable household electrical appliances, consumer oneself body health, when buying, should consider whether the water purifier brand by general administration of quality supervision, inspection, is in line with the national drinking water standard, conform to China's water purifier industry standards. On this premise, we should also consider whether the service of the brand water purifier is perfect in the future, so as to avoid the failure to contact the manufacturer (or contact difficulties) after installation to delay the normal maintenance time of the water purifier. At the same time, we must consider the durability of the water purifier. The service life of the general brand water purifier is 15-20 years.