Water purifier purchase nanny level strategy: from classification to avoid the pit, read this not to spend the wrong money!

With the frequent occurrence of water pollution and health awareness, water purifier has become the family drinking water “patron saint”. But in the face of a variety of products on the market, how to choose the right water purifier for your home? This article from the core principle, water quality matching, purchase parameters to the use of misunderstandings, to take you to avoid the pit, easy to realize the freedom of drinking water!

First, first understand the classification:
4 kinds of water purifiers, the ability to different water purifiers is the core difference in filtration accuracy, directly determine what pollutants can be removed:
1. Microfiltration water purifier
- Filtration capacity: only intercept sand, rust, chlorine and other large particles, can not remove bacteria, heavy metals.
- Scenario: water quality is good, filtered water needs to be boiled for drinking, suitable for families with very low budget but only need basic filtration.
2. Ultra-filtration water purifier
- Filtration capacity: it can remove bacteria and viruses, but cannot deal with heavy metals and scale.
- Scenario: Families with limited budget and medium water quality, but need to pay attention to hard water areas still have scale after use.
3. Nanofiltration water purifier
- Filtration ability: remove most of bacteria, viruses and heavy metals, while retaining some minerals.
- Scenario: the pursuit of mineral water taste, higher budget families, need to pay attention to the new version of the national standard on environmental performance requirements.
4. Reverse osmosis water purifier (RO machine)
- Filtration capacity: nearly 100% removal of impurities (including heavy metals, pesticide residues, etc.), the water is pure water.
- Applicable scenarios: areas with high risk of water pollution, or families with very high safety requirements for direct drinking, but need to accept a certain wastewater rate.
Summary:
- Choose reverse osmosis or nanofiltration for direct drinking, and ultrafiltration for domestic water;
- Microfiltration cost-effective, choose with caution.

Second, the purchase must look at the five core indicators
1. Health license approvals
- All regular products must be approved by the national health department, when purchasing, check the approval information and the actual product is the same, you can log on the “China Health Supervision Network” query.
2. Wastewater ratio and water-saving performance
- Wastewater ratio refers to the ratio of pure water to wastewater output (e.g. 2:1), theoretically the higher the ratio of the more water-saving, but the cartridge loss faster.
- It is recommended to choose the balanced type of 1:1 to 3:1, which is both environmentally friendly and economical.
3. Filter life and replacement cost
- The filter cartridge is the “heart” of the water purifier and needs to be replaced regularly. Calculate the average annual cost (cartridge unit price ÷ life) when purchasing, and prioritize products with intelligent cartridge replacement reminder function.
- Note: Long-term non-replacement of the cartridge may lead to secondary pollution, which is hazardous to health.
4. Capacity and experience
- Flux (e.g. 800G) determines the speed of water discharge, the larger the value, the faster the water. Ordinary families are recommended to choose more than 800G, taking into account the efficiency and adaptability of the pipeline machine.
5.Zero water aging and dual water outlet function
- Zero stale water technology can avoid the TDS value of overnight water rising, and improve the safety of direct drinking;
- Dual water outlet design (purified water + pure water) takes into account the needs of domestic water and drinking water, and reduces the cost of filter cartridge loss.

Third, according to the water quality selection type, do not spend money!
1. High hardness water (northern region)
- Characteristics: more scale, calcium and magnesium ion content is high.
- Program: choose the model with ion exchange resin cartridge, or directly on the reverse osmosis water purifier.
2. Highly chlorinated water / odor water (old pipe network)
- Characteristics: Residual chlorine, odor and color are obvious.
- Solution: Models with high activated carbon cartridge loading capacity, prioritize compressed activated carbon cartridge.
3. Water sources with high risk of pollution
- Characteristics: Industrial or agricultural pollution areas, high risk of heavy metals and pesticide residues.
- Program: must choose reverse osmosis water purifier to ensure the safety of direct drinking.
4. Standardized tap water (without excessive filtration)
- If the local water quality meets the Health Standard for Drinking Water, installing a water purifier is not necessary.

Avoid 3 common misconceptions
1. Superstitious “functional water” publicity
- Water purifier is only used to purify water, does not have a cure, beauty and other efficacy, alert business electrolysis water experiments and other marketing gimmicks.
2. Neglect after-sales service
- Water purifier needs long-term maintenance, choose a local brand with a perfect service network, to avoid door-to-door marketing or miscellaneous products after-sales door.
3. Blindly pursuing high prices
- The same technical principle of the product purification effect of the difference is not large, high-priced models may be additional non-essential features (such as intelligent screen display), according to the needs of rational choice.

V. Daily use and maintenance guide
- First use: Flush the cartridge sufficiently to remove residual impurities.
- Filter replacement: strictly in accordance with the instructions cycle, activated carbon cartridge is usually replaced every 6-12 months, RO membrane about 2-5 years.
- Water quality monitoring: regular use of TDS pen to detect the value of pure water (reverse osmosis models should be close to 0), ultra-filtration models need to be combined with boiling water to observe the scale changes.
Conclusion
Choose the right water purifier, not only to understand the technical parameters, but also to combine the family water quality and practical needs. Keep in mind that “a look at the approvals, two count the cost, three water quality”, avoid the traps of flashy publicity, in order to make every drop of water to drink with confidence!