Abducted, squatted on people, buried people, turned people, deceived people, and witnessed what happened to the body of a water purifier.
Today, it's common to see some water purifiers sold at a low price, which often leaves buyers confused about why premium brands are so expensive. So, what exactly is the "core" behind these cheap water purifiers?
Let’s start by talking about the "core" of a water purifier—the filter element. This is the main component that determines the performance of the unit. If you want to know whether a water purifier brand is good or not, the first thing to check is the quality of its filter. A high-quality filter can cost hundreds of dollars, which might seem expensive for an average household. That’s why some people ask: Is there a water purifier that doesn’t require changing filters?
Is there a water purifier that doesn’t need filter replacements?
The answer is no—every water purifier requires filter replacements. There is no such thing as a water purifier that never needs a new filter. However, different types of filter cartridges have varying replacement intervals. Some products on the market claim to last up to 5 years, but many of these claims are exaggerated or misleading.
Most household water purifiers use various types of filter elements, such as RO reverse osmosis membranes, ultrafiltration membranes, PP cotton filters, and activated carbon filters. Among them, the PP cotton and activated carbon filters usually need to be replaced every 3 to 6 months, while the RO membrane and ultrafiltration membrane can last 2 to 3 years under normal conditions.
Additionally, the quality of the incoming water and how frequently the purifier is used can also impact the lifespan of the filters.
Why do water purifiers need their filters replaced?
Because the filter in a water purifier captures impurities from the water and allows clean water to pass through. Over time, the trapped impurities cannot be fully flushed out during cleaning. As a result, they accumulate, reducing the efficiency of the system. In fact, a purifier that gets clogged is actually a good sign—it means the filter is working effectively.
So, is there a water purifier that doesn’t require filter changes? The answer is no. But we don’t avoid buying water purifiers just because filters are costly. We buy them for safe drinking and cooking. Using clean water is worth the investment in quality filters.
The dangers of cheap filters
Many low-cost water purifiers on the market use substandard filter elements. These may cut corners in materials and manufacturing. For example, some use inferior activated carbon, like coal-based or mixed shell carbon, instead of high-quality coconut shell carbon. Such materials have poor adsorption capacity, lower iodine values, and may not meet national standards. Worse yet, they could release harmful substances into the water.
PP cotton filters are often the first line of defense. However, the quality of the PP cotton varies—some are made with low-density fibers that fail to properly trap contaminants. This allows pollutants to pass through and damage the subsequent filters, leading to faster contamination. Water purifiers with poor-quality filters not only fail to protect users but can even introduce secondary pollution, posing serious health risks over time.
For the health of you and your family, it’s important to choose a reliable water purifier that ensures clean and safe water. After all, water is the source of life, and investing in quality filtration is an investment in your well-being.
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