You can drink it directly.
Nowadays, the average family uses ultra-filtration machines and water purifiers, with a standard filtration level of 5 levels. Generally through the water purifier filter, the water can basically reach the standard of pure water, the water does not contain any impurities, this water can be used to drink directly.
The water purifier according to the combination of different filter cartridges, the level of filtration also varies. If you look at the water purification technology, water purifier can be divided into filtration, activated carbon adsorption, membrane technology, electrolysis technology, dissolution, mineralization, magnetization, etc., of course, involves the membrane technology is the core of the water purifier, but also the core of the water purifier product embodiment.
Extended information
Working principle
The first level: ? Microfiltration Membrane
The Microfiltration Membrane removes all kinds of visible matter/dust and impurities from tap water. These particulate matter from the pipeline aging, rust, roof tanks secondary pollution and so on.
Second Stage: Compressed Carbon
Compressed carbon removes chlorine and organic impurities such as harmful pesticides. It also absorbs odors, colors, and smells produced by organic compounds in the water, which come from tap water disinfection byproducts.
Third Stage: Ultrafiltration Membrane
Ultrafiltration membranes remove substances such as bacteria, viruses and spores from the water.
The fourth level: cartridge life indicator
The device inside the gear structure design, with the passage of the water flow, the gear rotates to make an internal shaft upward movement, until the outlet blocked, the water can not pass, that is, through the designed trip to calculate the total amount of water over the water purifier water, so as to ensure that the water is safe.
Baidu Encyclopedia - Water Purifier