With the growing problem of drinking water pollution, more and more families choose to purchase a household water purifier for their own family to solve the problem of drinking water at home. For most consumers, the water purifier is too strange for them. Faced with the vast number of water purification concepts on the market, thousands of water purifier brands are really unable to do anything.
Well, the question is, "In the face of a wide variety of water purifier brands on the market, so many brands of water purifiers, how can I choose?" Next, let's talk to you about how to choose one. A good household water purifier!
One: See if the product sanitation license and after-sales service are perfect
According to the relevant regulations, the manufacturer of the water purifier must obtain the hygiene license of the higher-level health supervision department, and each brand and each type of water purifier has only one sanitation license batch number. Similarly, the quality of a product is good or bad, depending on whether the after-sales service is in line with the need of consumers to pursue a high-quality life. Consumers should try to choose the products of regular manufacturers when purchasing products. At the same time, in addition to asking for formal invoices, they also need manufacturers or sellers to issue specific warranty certificates. Buying a product, buying it is after-sale, and buying it is assured.
Second, according to the specific water quality
The quality of the water purifier is not absolute. If the quality water purification product does not match the purified water quality, the water purification effect will be greatly reduced, and it will not be a good product. Different water purifier products, because of the different water purification technology and filter combination structure, also meet different water quality use. Therefore, consumers must analyze specific problems and choose the most suitable according to the water quality of their own area. The type of water purifier product. Here are three things to explain!
1. High-hardness water quality in northern China and limestone areas in the south. The content of calcium and magnesium ions in water is high and it is easy to scale. You should purchase advanced filtration water purifier with ion exchange resin filter.
2. In the city, the water is chlorine, the color and smell is heavier, and the tap water of the city with more organic content can be purchased with a household water purifier with more activated carbon load. Because activated carbon has a strong adsorption effect on residual chlorine and heterochromatic odor in water, it has obvious removal effect on organic matter.
3. For tap water purification with turbid water quality in urban and rural areas, household water purifiers with dual functions of coarse filtration and fine filtration should be purchased. For serious pollution in water, it is required to thoroughly filter out any impurities in the water. If you do not need to drink it directly, you should purchase a reverse osmosis pure water machine.
Third, the installation location, size and method
Before choosing, you should first determine its installation location and the size of the purchase. You should also reserve some space for installation, so that you have a relatively low bottom when purchasing, you can avoid the decoration received. If the decoration is good, then you don't have to worry too much. At that time, you can ask someone to come to help measure the position, and provide the installation position and reference opinion of the water purifier.
Fourth, the import or expensive must be good
I believe that not only water purifiers, but many consumers have a misunderstanding of consumption, that is, the imported things are good. What is to be explained here is that in fact, many unknown water purifier manufacturers use the banner of imported brands to promote their own water purifiers to cure diseases and beauty, and maliciously raise the price of products. Consumers must pay attention to the net. The only function of the water is to filter, and there is no need to choose an imported brand. On the contrary, the domestic water purifier is more in line with Chinese water quality. Of course, we can't just choose low prices. Buying water purifiers depends on product quality and after-sales. For a penny, the principle of one-point goods will never change. At present, the price of water purifiers on the market is between 1000-5000 yuan. It is recommended that everyone choose between them.
5. The filter element does not mean that the water purification effect is good.
Although the water purifier is a hardware product, the filter element in the water purifier is only a general term, and there are 7-8 kinds of filter elements. Different types of filter prices, performance focus has a great difference. This has led many water purifier salesmen to often use a water purifier filter as a mischief to mislead consumers and increase the cost of consumer repairs. So everyone must pay attention to this consumption trap. When choosing a water purifier, always remember that there are many water purifier filters. It is not good to represent this water purifier.
Here I briefly talk about the method of selecting the water purifier. 1. Look at the core filter, mainly divided into 2 kinds, ultrafiltration membrane, RO membrane, RO membrane filtration effect is greater than ultrafiltration. Machines with RO membranes generally do not need an ultrafiltration membrane. Let me talk about other types of filter elements, and other filter elements are auxiliary hardware, PP cotton filter---crude filter (retail is more than a dozen dollars), activated carbon filter----adsorption odor enhances the taste, KDF Filter element---Adsorption of heavy metals, so the general water purifier 4-5 filter cores are in the sky, and the products of 7-8 filter elements are all gimmicks. There is no practicality.
Six, do not update the filter to say things
Many consumers feel that it is very troublesome to replace the filter element. Want to do it once and for all, many water purifier sales personnel have seized the consumer's psychology, saying that their brand's water purifier filter can not be changed, or 1- Only need to be replaced in 2 years, it should be noted that these are extremely unprofessional and irresponsible remarks. The water purifier filter is used to filter and trap harmful substances, which must be blocked or the performance is degraded for a long time. In addition, the use time of various types of water purifier filters is not fixed. For example, in areas with poor water quality, the first-stage PP cotton filter needs to be replaced in 3 months. The specific replacement cycle is related to water quality and frequency of use.
Here, Xiaobian has something to say, if you are afraid of not replacing the water purifier filter, why buy a water purifier? After all, the water purifier can not purify the water for a long time. Isn't this an addition to your health?
After reading the above introduction, I believe that everyone has a certain understanding of the purchase of water purifiers. Then! Add a home water purifier to your home!
AAWG WDM - Athermal Arrayed Waveguide Gratings Wavelength Division Multiplex
There are currently three types of DWDM technologies developed in the industry, which are based on AWG, TFF and FBG technologies. AWG is a planar waveguide device, which is an arrayed waveguide grating made on a chip substrate using PLC technology. Compared with FBG and TTF, AWG has the advantages of high integration, large number of channels, low insertion loss, and easy mass automated production.
The Athermal AWG module is based on the arrayed waveguide grating technology and does not require additional power supply or temperature control. It is a pure passive module. It has the characteristics of low loss and polarization-related loss, low crosstalk, etc., and has good stability in the operating temperature range of -40°C to 85°C.
With the vigorous development of 5G, users will have higher and higher requirements for bandwidth. Operators will need to continuously increase data transmission rates, increase transmission capacity, and reduce operating costs. Among them, the active WDM-PON solution is difficult to deploy on a large scale due to its high cost; while the passive WDM-PON will have more application space due to its advantages of low cost, no power supply, and easy installation. Among them, the non-thermal AWG will be more widely used because of its larger number of channels, denser channel spacing, and no need to rely on power supply or temperature control.
Athermal AWG WDM, also known as Athermal Arrayed Waveguide Grating WDM and AAWG WDM Splitter, along with FBT WDM splitter, LAN WDM splitter, Filter WDM splitter, dense WDM splitter and coarse WDM splitter, are the most commonly used WDM device in construction of PON.
Athermal AWG WDM, Athermal Arrayed Waveguide Grating WDM, AAWG WDM Splitter
Shenzhen GL-COM Technology CO.,LTD. , https://www.szglcom.com