A high-quality desktop water dispenser filtration system usually has multiple filtration processes. The first one is often a pre-activated carbon filter element, which can effectively absorb residual chlorine, odor, and some organic pollutants in the water. Activated carbon has a rich pore structure, which is like countless tiny adsorption traps, which can adsorb impurities such as chlorine molecules and volatile organic compounds in the water, thereby improving the taste of water, removing bad odors in the water, and making the water initially purer and more delicious.
The next is the ultrafiltration membrane filter element. The filtration accuracy of the ultrafiltration membrane is about 0.01 microns, which can intercept large molecular organic matter, colloids, bacteria, etc. in the water. The ultrafiltration membrane is like a fine sieve, allowing beneficial substances such as water molecules and some small molecular minerals to pass through, while blocking larger impurities. For example, bacteria, algae and other microorganisms in the water will be intercepted when passing through the ultrafiltration membrane and cannot enter the subsequent drinking water link, which greatly reduces the risk of disease caused by drinking water containing microorganisms and protects human health.
Some high-end desktop water dispensers are also equipped with reverse osmosis membrane filters. The filtration accuracy of the reverse osmosis membrane is extremely high, reaching below 0.0001 microns, which can remove almost all soluble salts, heavy metal ions and other tiny pollutants in the water. During the reverse osmosis process, driven by pressure, only water molecules can pass through the reverse osmosis membrane, while heavy metal ions such as lead, mercury, cadmium and soluble salts such as fluoride and nitrate are retained on one side of the membrane, thereby obtaining drinking water with extremely high purity. This deep filtration is particularly important for areas with poor water quality or users with extremely high requirements for drinking water quality. It can effectively remove harmful substances in the water and provide a safe and reliable source of drinking water.
In order to ensure the long-term effectiveness of the filtration system, the filtration system of the desktop water dispenser also needs regular maintenance and replacement of the filter element. As the use time increases, the filter element will gradually become saturated, and the adsorption and filtration capacity will decrease. If the filter element is not replaced in time, the filtration effect will be greatly reduced, and the quality of the filtered water may even be worse than that of the unfiltered raw water. It is generally recommended to regularly replace filter cartridges of different levels according to the manufacturer's guidance and actual usage to ensure that the filtration system is always in good working condition.
From the actual use effect, the water treated by a good filtration system tastes significantly more pure and sweet, without peculiar smell and miscellaneous taste. In terms of water quality testing, indicators such as microbial content, heavy metal content, and dissolved solid content in the water are significantly reduced, meeting the national drinking water hygiene standards and even higher healthy drinking water standards. This means that we can safely drink water filtered by a desktop water dispenser, whether it is directly drunk or used for making tea, coffee, etc., it can improve the taste and quality of the drink.