Drinking Pure Water: Why It Matters and How a Purifier Helps

Drinking pure water, free from bacteria, heavy metals, pesticides, and dissolved chemicals, is one of the simplest ways to protect your health. In India, waterborne diseases affect an estimated 37.7 million people annually and cause thousands of deaths each year, according to estimates by UNICEF. A water purifier removes these contaminants at the point of use, delivering safe drinking water that boiling alone cannot guarantee. Modern multi-stage purifiers also retain essential minerals like calcium and magnesium, addressing the common concern that purified water is 'too clean' to be healthy.

Key Points:

• Purified drinking water eliminates up to 99% of bacteria, viruses, heavy metals, and chemical contaminants.
• Boiling kills microbes but does not remove dissolved chemicals, pesticides, or heavy metals.
• A good water purifier costs less per liter than bottled water and generates no plastic waste.
• Health benefits include better digestion, improved kidney function, clearer skin, and lower risk of waterborne illness.
•  Modern RO purifiers with mineralizers retain essential minerals, so purified water is not mineral-deficient.

What Does Purified Water Actually Mean?

Purified water is water that has been treated through one or more filtration processes to remove contaminants, making it safe for drinking. These processes include Reverse Osmosis (RO), Ultraviolet (UV) sterilization, Ultrafiltration (UF), and activated carbon filtration. The result is water with significantly reduced levels of bacteria, viruses, dissolved solids, heavy metals, chlorine, and pesticides.

Purified water is different from both boiled water and mineral water. Boiling kills most microorganisms but leaves behind dissolved chemicals and heavy metals. Mineral water comes from natural springs and contains specific mineral profiles. Purified water, by contrast, is systematically cleaned and then, in modern purifiers, re-mineralized to achieve a safe and healthy balance.

Why Should Drinking Water Be Purified?

Indian tap water, even in major cities, is not reliably safe to drink directly from the faucet. Between January 2025 and January 2026, sewage-contaminated piped water caused illness outbreaks in at least 26 cities across 22 states, according to a Down To Earth investigation. The contaminants are not always visible or detectable by taste.

Here is what Indian tap and borewell water commonly contains:

•  Bacteria and viruses (E. coli, Salmonella, Hepatitis A) from sewage mixing with supply pipelines.
• Heavy metals (lead, arsenic, mercury) from industrial runoff and old plumbing.
•  Pesticides and herbicides from agricultural runoff seeping into groundwater.
• Chlorine and its byproducts added during municipal treatment, which can cause taste issues and, in excess, health concerns.
• Dissolved salts (high TDS) particularly in borewell water, affecting taste and potentially straining kidneys over time.

 

Boiling handles the first category. It does nothing for the other four. This is exactly why a multi-stage water purifier is necessary for Indian households, not optional.

Health Benefits of Drinking Pure Water Every Day

Drinking purified water consistently delivers measurable health benefits across multiple body systems.

• Better digestion: Clean water supports the production of digestive enzymes and stomach acid. Contaminants in unpurified water can disrupt gut bacteria and cause chronic digestive issues like bloating, acidity, and irregular bowel movements.
• Improved kidney function: Your kidneys filter approximately 180 liters of blood daily. When the water you drink carries heavy metals or excess dissolved solids, it adds unnecessary load on the kidneys. Purified water reduces this burden, lowering the risk of kidney stones and long-term kidney damage.
• Stronger immunity: Waterborne pathogens weaken the immune system through repeated low-grade infections. Eliminating these pathogens at the source allows your immune system to focus on actual threats rather than fighting contaminants you unknowingly consumed.
• Healthier skin and hair: Chlorine and heavy metals in water dry out skin and weaken hair over time. Drinking purified water (and ideally bathing in softened water) helps maintain skin hydration and hair strength from the inside out.
• Higher energy and focus: Dehydration, even mild, reduces cognitive performance and energy levels. When water tastes clean and fresh, you naturally drink more of it, staying better hydrated throughout the day.

Purified Water vs Boiled Water vs Bottled Water

This is the comparison most Indian households need but rarely get. Here is what each method actually handles:

Contaminant	Purified (RO+UV)	Boiled	Bottled (packaged)
Bacteria & viruses	Yes	Yes	Usually yes
Heavy metals	Yes (RO)	No	Varies by brand
Pesticides	Yes	No	Varies
Chlorine	Yes	Partially	Usually yes
Dissolved salts (TDS)	Yes (RO)	No	Controlled
Retains minerals	Yes (with mineralizer)	Unchanged	Varies

 

A home water purifier is the most comprehensive and cost-effective solution for daily drinking water. Boiling is a reasonable backup in emergencies, but it cannot match the breadth of contaminant removal that a multi-stage purifier delivers.

Does Purified Water Lose Essential Minerals?

This is the most common concern about RO-purified water, and the short answer is: not anymore. Standard RO membranes do strip most dissolved minerals along with contaminants. However, modern RO water purifiers include a mineralizer or TDS controller that adds back essential minerals like calcium, magnesium, and sodium after purification.

The Atomberg Intellon water purifier, for example, uses an alkalizer stage that restores mineral balance and maintains a healthy pH after RO filtration. Its Intelligent Filtration System also bypasses RO entirely when input TDS is already within safe limits, preserving natural minerals when aggressive filtration is not needed. The result is water that is both contaminant-free and mineral-rich.

How to Choose the Right Water Purifier for Your Home

Choosing a purifier starts with understanding your water source. Test your TDS with a handheld meter (under Rs 200 online). Then match your result:

• TDS above 500 ppm: RO-based purifier is essential. Look for one with a mineralizer to retain healthy minerals.
• TDS 200 to 500 ppm: RO + UV works well. An adaptive purifier that adjusts filtration based on input TDS saves money on filter replacements.
• TDS below 200 ppm: UV + UF is sufficient for safe drinking water without stripping minerals unnecessarily.

 

The Atomberg Intellon addresses all three scenarios with its adaptive 4-mode purification system. It reads input TDS automatically and selects the right combination of RO, UF, and UV, so you get safe water without over-processing it. The 2-year comprehensive warranty with zero AMC costs makes it a practical long-term investment.

FAQs 

• Is filter water good for health?

Yes. Water passed through a quality multi-stage filter (RO + UV + UF) removes bacteria, heavy metals, pesticides, and dissolved chemicals, making it safe and healthy for daily consumption. Basic single-stage filters may improve taste but do not remove all contaminants.

• Why should we drink purified water instead of tap water?

Indian tap water frequently contains bacteria, chlorine, heavy metals, and pesticides from pipeline contamination and agricultural runoff. Purified water eliminates these contaminants, significantly reducing the risk of waterborne diseases and long-term health problems.

• Is boiled water the same as purified water?

No. Boiling kills bacteria and viruses but does not remove heavy metals, pesticides, dissolved chemicals, or excess TDS. Purified water from a multi-stage purifier addresses all of these.

• Does purified water remove all minerals?

Standard RO purification removes most minerals. However, modern RO purifiers include mineralizers or TDS controllers that add essential minerals back after purification, so the water is both safe and mineral-rich.

• What are the main advantages of purified water?

Key advantages include removal of harmful contaminants, better taste, improved digestion, healthier skin, reduced risk of kidney stones, and significant cost savings compared to bottled water.

• How much purified water should I drink daily?

Health experts generally recommend 2 to 3 liters of water per day for adults, adjusted for climate and activity level. In hot Indian summers, you may need closer to 3 to 4 liters.