Water Filter Knowledge

What are the disadvantages of RO (Reverse Osmosis)? Why are these disadvantages still the top choice in the water purification market?

Reverse Osmosis (RO) is a widely used and highly mature water purification technology that filters impurities from water, including pathogens, heavy metals, and chemicals, to achieve high standards of drinking water. However, RO also has its drawbacks and advantages, which we delve into in-depth, discussing the commonly cited disadvantages of reverse osmosis. 1. Is it […]

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Why is there such a price difference for the same PP melt-blown filter core?

1. Preface There exists a vast difference in prices for identical products under different brands across all products in the world. Take the common personal item “watch” as an example to explore. This dispensable accessory shows the most significant price gap among all products. The most expensive watches cost millions, yet people still buy them,

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How to Choose PP Filter Cartridges?

PP cartridges are very common basic filters, typically used to block larger impurities in water such as sediment, suspended particles, hair, rust, etc., composed of melt-blown polypropylene fibres. Generally, household water purifiers using PP cartridges have filtration apertures ranging from approximately 1 micron, 5 microns, 10 microns, to 20 microns. The characteristics of PP cartridges

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How to Choose the Right Chlorine-Removing Shower Head?

Chlorine-removing showerheads are quite prevalent in Europe and America, but their adoption among the Chinese population is relatively limited. Currently, they are still in the developmental stage, with growing awareness among Chinese consumers about their health benefits. The cleanliness of drinking water can affect the body internally, and similarly, improper use of bathing water can

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The Great Limescale Decryption

What are soft water and hard water? From a scientific perspective, water hardness is determined by the presence of compounds containing calcium and magnesium (expressed in milligrams per litre of water, or ppm). The higher the concentration of these compounds, particularly calcium carbonate (CaCO3), the harder the water. Water hardness is generally classified into four

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What is an RO machine?

We walked into a water purifier specialty store, and the most frustrating thing might be the salesperson rattling off a bunch of technical terms that we don’t understand and feel embarrassed to ask about. ‘RO machine’ is short for Reverse Osmosis, taking the first two letters of the English words. The full name is Reverse

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Principle of Reverse Osmosis

In 1748, French scientists first discovered the phenomenon of pigs’ bile membranes being able to permeate water, but due to the technological limitations of the time, they could not exploit it. However, this phenomenon later became an explanation for various natural phenomena over the next two hundred years, such as theories on how trees absorb

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How to verify the authenticity of NSF water filtration product certification?

Water purifier manufacturers often highlight their products by claiming that their water purifiers, filter cartridges, or parts are NSF-certified. This association with NSF, which many are familiar with, involves significant costs — around $30,000 to $80,000 for initial product certification, plus an annual fee of over $6,000 per product to the NSF Foundation. It’s no

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Why do water purifiers need to apply for NSF certification?

Q: Why do water purification devices need to apply for NSF certification? A: NSF is an internationally recognised and representative testing organisation in the field of drinking water. Water purifiers that obtain NSF international certification must not only pass tests for removing contaminants but also fully meet the following six conditions: List of NSF Standards:

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