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Filtered Water vs Purified Water (What’s the Difference?)

What’s the difference between filtered and purified water?

Read on and find out this and much more.

Is purified and filtered the same?

No. Although all purified water is filtered, not all filtered water is pure. Both types of waters undergo filtration but at different levels bringing out some substantial differences between them.

What is Filtered Water?

It’s water that has been run through carbon and microfilters to remove Chlorine and other contaminants and improve the taste.

Health benefits of filtered water

Helps prevent diseases: Filtration removes pathogens that cause diseases from water hence improving health.

Healthy minerals: Filtered water retains minerals like Calcium and Magnesium, which are helpful for body health

Boosts immunity: It’s devoid of harmful contaminants and impurities hence beneficial for those with low immunity.


  • No Chlorine hence tastes and smells better
  • Removes heavy metals like Lead and Mercury
  • Retains Fluoride that protects your teeth
  • Excellent for growing children
  • Retains helpful minerals like Calcium and Magnesium, which aid in preventing heart, joint, and bone issues
  • Filtration is straightforward


  • Lack of control over what gets filtered and retained
  • Filters are costly to maintain
  • High initial installation cost

What is Purified Water?

Its water has undergone filtration plus other purification processes such as reverse osmosis, deionization, and distillation. These processes remove all impurities, including bacteria, fungi, parasites, metals, and chemicals resulting in pure water.

Health benefits of purified water

Chlorine-free water: Purified water removes Chlorine resulting in better tasting and smelling water.

Removes bacteria: It’s devoid of creepy harmful bacteria hence preventing diseases.

Improves scalp and hair health: Purified water has a positive effect on your hair and scalp condition

Essential minerals: Purified water supplies essentials minerals like Magnesium, Calcium, and Sodium.


  • It’s a healthy option, especially if you live in an area with low water standards.
  • It tastes. and smells fresh 
  • Relatively simple to make
  • Improves the general health
  • Bacteria-free hence prevents diseases


  • Purified water has no Fluoride hence promotes the risk of tooth decay
  • At times, purification doesn’t get rid of all contaminants; thus, the water may be unsafe for drinking
  • Intensive maintenance is required for the filtration systems to work effectively
  • It’s costly: Installing a water filtration system is expensive, and so is buying bottled purified water.


Is tap water purified?

Even though tap water undergoes some sort of purification process to make it safe for consumption, it’s not as pure as purified water which goes through thorough purification processes.

Is spring water purified?

Spring water undergoes minimal distillation as a purification method to make it safe for consumption, unlike purified water which has to go through a rigorous purification process.

Can purified water be used in place of filtered water?

Yes. Purified water is the purest type of water as it’s completely devoid of chemicals and other contaminants. As such, it can be used in place of filtered water.

Why is filtered water bad for you?

Filtered water is devoid of Fluoride, which is essential for dental health. Prolonged consumption of filtered water puts you at risk of tooth decay.

Which is better, purified water or spring water?

It purely depends on personal preference and access as both types are safe for consumption. Although purified water has higher purity, spring water has more natural minerals. 


So, which type of water suits you best?

Now you are well equipped to make your choice.

Joshua Perkins

Joshua spent ten years as a water systems technician in California before settling down with his wife and two young children in Nashville in 2018. Through all of his experience, he learned the benefits and shortfalls of so many different types of water filtration systems, from pitchers to whole-house installations. He started Water Filter Authority in 2019 to empower other families to make the right decision for their long-term health and wellness.