What should we pay attention to when choosing a filter element for a RO reverse osmosis pure water machine?
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Update time : 2025-05-30 17:05:58
As the core component of a household water purifier, the filter element plays a vital role in water purification! Many families have already popularized water purifier equipment, but they still don’t know that water purifiers need to replace the filter element regularly, let alone how to choose the filter element. Today, combined with the water purifier filter element, we will popularize the following about the types, functions and matters to pay attention to when purchasing water purifier filter elements, so that you can refer to them when purchasing similar products.
1. Classification of water purifier filter elements
Divided by water purifier type: Water purifier filter elements can be divided into special filter elements and universal filter elements according to the type of water purifier. Special filter elements can only be used for water purifiers of specific brands and models, while universal filter elements can be used for water purifiers of different brands using universal filter elements.
Divided by filtration effect: Water purifier filter elements can be divided into ultrafiltration, microfiltration, activated carbon filtration, reverse osmosis, etc. according to the filtration level. Different filtration levels are suitable for water quality conditions in different regions. Choosing the appropriate filtration level can better ensure the health of water quality.
2. Classification of reverse osmosis filter cartridges
Reverse osmosis water purifiers are currently one of the most ideal products among household water purifiers. If a universal filter cartridge is used, it is usually divided into three-stage filtration, four-stage filtration, five-stage filtration, etc. according to the filtration level of the water purifier. The Volardda water purifier filter cartridge is a representative product with excellent filtration effect and cost performance.
3. The role of each level of filter cartridge
Now let's take the universal series of water purifier filter cartridges as an example. Let's popularize what are the components of common universal water purifier filter cartridges and what filtering functions they have.
Volardda water purifier filter cartridges use five-stage filtration technology, including PP cotton, GAC carbon particles, CTO carbon rods, RO reverse osmosis, and post-activated carbon. Relatively speaking, five-stage filtration is a filtration level with a relatively ideal filtration effect, and it is also a more mainstream filtration level on the market. The following introduces the role of each filter cartridge:
First-level PP cotton filter cartridge: PP cotton filter cartridge mainly filters large particle impurities in the water, including suspended matter, sediment, rust, etc., which is a relatively primary filtration.
Second-level GAC granular carbon: Granular carbon is a form of activated carbon. It is made of coconut shells, fruit shells and coal, and is processed through a series of production processes. It is mainly used to absorb residual chlorine, odor, and color in water.
Third-level CTO carbon rod: It can absorb residual chlorine, odor, suspended particles and other substances that are harmful to the human body. It can effectively improve the taste.
Fourth-level RO reverse osmosis membrane: It can filter harmful substances such as bacteria, viruses, heavy metals, pesticide residues, etc. in water to improve the purity of water quality. The RO membrane pore size of the Jinqian water purifier filter is 0.0001 microns. It uses imported RO membranes with higher filtration accuracy and longer service life. And the wastewater ratio is 1:1, which saves much more water than the common 1:3 and 1:2.
Fifth-level post-activated carbon: It is mainly used to absorb residual odors and inhibit the growth of microorganisms.
4. Precautions for purchasing water purifier filter cartridges
First, when purchasing water purifier filter cartridges, you should pay attention to the establishment time of the company and brand, and also pay attention to whether the brand focuses on water purification technology and water purification products. Because the manufacturer's personnel, funds and technical resources are limited, brands that have focused on the water purification field for a long time are relatively more trustworthy.
Second, when choosing a water purifier filter cartridge, you can first understand its product materials, weight and other information. For example, the PP cotton filter cartridge of the Volardda water purifier series is much heavier than the common similar filter cartridges in the supermarket, and it has a longer service life and a higher cost-effectiveness.
Finally, try to choose a good brand like Volardda, which has more reliable quality and more guaranteed after-sales service.
