Stop Believing These Water Purifier Myths! The More You Believe Them, the More You Lose

Nowadays, almost every household has a water purifier installed—after all, drinking clean water is the most basic step in protecting your family’s health. However, rumors about water purifiers have never ceased, and many people have been misled by false claims, either wasting money or using the wrong type of purifier, which can actually compromise the safety of their drinking water.
These rumors may seem plausible at first glance, but they’re actually riddled with flaws. Today, we’ll debunk them one by one to help you avoid these pitfalls, save money, steer clear of common traps, and use your water purifier correctly to safeguard your family’s drinking water health ✨

🔴 Myth #1: The more thorough the filtration, the cleaner the water
Many people are fixated on the idea that the higher the filtration precision, the cleaner the water—some even blindly pursue “zero-impurity” water. In reality, this is unnecessary. Impurities in water fall into two categories: harmful substances and beneficial minerals like calcium and magnesium that the human body needs. Completely filtering them out actually does more harm than good. There are many types of water purifiers on the market. Ultrafiltration (UF) purifiers can filter out bacteria, viruses, and large particles while retaining beneficial minerals in the water; Reverse Osmosis (RO) purifiers have extremely high filtration precision, capable of removing almost all impurities—including beneficial minerals—and are better suited for areas with poor water quality.

Blindly pursuing “ultra-thorough filtration” not only wastes water and electricity but also strips the water of essential minerals. Drinking purified water long-term can actually be detrimental to your health. The correct approach is simple: choose a system based on your specific water quality. It’s not about filtering as thoroughly as possible—it’s about finding the right fit.

🔴 Myth #2: Drinking water from a water purifier long-term leads to mineral deficiency
This is the main reason many people refuse to install water purifiers, with some even claiming that “drinking purified water causes calcium deficiency.” In reality, this claim is completely unfounded. The human body primarily obtains minerals from food sources such as milk, vegetables, and meat. The mineral content in water is negligible and has virtually no impact on the body. On the contrary, unfiltered tap water may contain harmful impurities such as heavy metals, bacteria, and residual chlorine, which pose long-term health risks if consumed over time. The purpose of installing a water purifier is to filter out these harmful substances, not to obtain minerals. If you’re truly concerned about mineral intake, simply eat more mineral-rich foods.

🔴 Myth 3: Water purifiers don’t need filter replacements—just rinse them and reuse them
Many people believe that filter cartridges can be reused indefinitely after a quick rinse, so there’s no need to spend money on replacements. In reality, this practice is even more dangerous than not having a water purifier at all. Filter cartridges act as the “filter mesh” of a water purifier; over time, they become clogged with impurities, and their adsorption capacity decreases. No amount of rinsing can restore their original filtration effectiveness. If you don’t replace the filter cartridges for a long time, the clogged cartridges will become a “breeding ground” for bacteria and mold, and the filtered water may end up being dirtier than tap water. Different filter cartridges have different replacement cycles, generally requiring replacement every 3–12 months, depending on water quality and usage frequency. Only by replacing the filter cartridges regularly can you ensure effective water purification and avoid secondary contamination.

🔴 Myth 4: Boiling tap water makes it safe to drink, so there’s no need for a water purifier
“Boiling tap water kills germs, so installing a water purifier is a waste of money”—many people have likely heard this claim. It’s undeniable that boiling does kill most bacteria and viruses in water, but it cannot remove heavy metals, residual chlorine, or scale. Residual chlorine in tap water produces trichloromethane when boiled, which is a harmful carcinogen; scale primarily consists of calcium and magnesium carbonates, and long-term consumption may increase the risk of kidney stones; Once heavy metals enter the body, they are difficult to eliminate and accumulate over time, damaging the liver and kidneys. Boiling only addresses bacterial issues, while other harmful impurities remain. Installing a water purifier is the only way to fundamentally purify water quality and drink with greater peace of mind. This is especially true for households with the elderly or children—please don’t let these myths mislead you anymore.

🔴 Myth 5: The more expensive the water purifier, the better its purification performance
Many people buy water purifiers based solely on price, assuming that more expensive models must be better, or even blindly chasing imported brands and high-end models. In reality, a water purifier’s effectiveness depends primarily on the quality of its filter cartridges and filtration technology—not necessarily on its price.

Some high-end water purifiers are expensive mainly because they include smart features and attractive designs, but their core filtration performance is not significantly different from mid-range models that offer better value for money. Conversely, some low-priced water purifiers feature poor-quality filter cartridges and outdated filtration technology, resulting in ineffective purification and potentially posing safety risks.

When purchasing a water purifier, focus on the filter cartridges and filtration technology, and choose a model based on your household’s water quality and specific needs. There’s no need to blindly chase high prices—the best choice is the one that suits you, saving you money while being practical.

In summary, most rumors about water purifiers stem from a lack of understanding. By gaining a proper understanding of water purifiers, avoiding these misconceptions, selecting the right model for your specific needs, and replacing the filters regularly, you can truly safeguard your family’s drinking water safety. Don’t let rumors cost you money or harm your health.