Reverse osmosis water purifier is better, the filtration precision is higher, the water filtered out is cleaner.
Reverse osmosis water purifier filtration accuracy of 0.0001 microns, is currently the highest filtration accuracy of the membrane, the service life of about 2 years. Therefore, the manufacturing cost of this membrane is also expensive, the inconvenience is that it needs to be plugged in to use, will produce a certain amount of concentrated water. However, this part of the concentrated water can also be used to water flowers, flush the toilet and so on, and bathing waste of water compared to the water purifier produced by the concentrated water is not worth mentioning.
Ultra-filtration water purifier through the ultra-filtration membrane high-precision physical purification process, able to remove almost all the sediment, rust, bacteria, visible suspended solids, algae and macromolecular organic matter in the water. Most of the ultra-filtration machine are used in front of the PP filter, ultra-filtration cartridge, rear activated carbon and other three-layer structure, of which the PP filter element about 3-6 months need to be replaced, ultra-filtration cartridge according to the use of the life of the cartridge can be maintained for about 12-24 months of use.
Purchase of water purifier misunderstanding
1, water purifier cartridge the more the better, the more the better
Some people buy water purifier will think that the more the cartridge, the better the effect of water purifier water purification, is not the case, such as the cartridge is more, but the cartridge quality is not high, and then more can not play a big role. In addition, on the issue of the number of cartridge level, home water purifier to 5-6 level of filtration is the best, and the last filter of drinking water, as far as possible to use the discarded cartridge, so as to avoid secondary pollution.
2, the cartridge can be a long time without replacement
Nothing can be a long time without replacement of the cartridge, although some businesses claim that the water purifier cartridge 3-5 years do not need to be replaced, in fact, it is an exaggeration, do not believe it. The service life of the cartridge is affected by the water quality and frequency of use, and generally have to be replaced once a year.