How to Remove Chlorine from Water – 8 Methods to Remove

Water is an essential resource for our daily lives, but it can sometimes contain contaminants that affect its taste, smell, and overall quality. One common chemical found in tap water is chlorine, which is used by water treatment facilities to disinfect water supplies.

While chlorine helps kill harmful microorganisms, its presence can be undesirable due to its strong odor and potential health risks. In this article, we will explore various methods to remove chlorine from water, ensuring you have access to clean and chlorine-free drinking water.

how to remove chlorine from water

How to Remove Chlorine from Water – 8 Methods to Remove Chlorine

There are several effective methods to remove chlorine from water, ranging from simple household techniques to advanced filtration systems. Let’s explore some of these methods:

  1. Boiling: Boiling water is a straightforward and accessible method to remove chlorine. By boiling water for around 15 minutes, the chlorine will evaporate, leaving you with chlorine-free water. This method is particularly useful for small quantities of water.
  2. Standing: Allowing water to stand uncovered for a few hours can also help chlorine dissipate. Chlorine is volatile and will naturally evaporate over time. However, this method is not suitable for emergencies or situations where immediate access to chlorine-free water is required.
  3. Activated Carbon: Activated carbon filters are highly effective in removing chlorine and its byproducts. These filters work by adsorption, trapping chlorine molecules as water passes through the carbon medium. Activated carbon filters are commonly found in faucet attachments, filter pitchers, and under-sink filtration systems.
  4. Vitamin C Filter: Vitamin C filters utilize ascorbic acid (vitamin C) to neutralize chlorine. These filters are often used in shower heads but can also be attached to faucets or used in portable water bottles. Vitamin C reacts with chlorine, converting it into a non-toxic chloride.
  5. Reverse Osmosis: Reverse osmosis systems use a semipermeable membrane to remove impurities, including chlorine, from water. These systems are highly effective but can be expensive and may require professional installation. Reverse osmosis systems are often installed under the sink and provide purified water for drinking and cooking.
  6. Distillation: Distillation involves boiling water, collecting the steam, and condensing it back into liquid form. This process effectively removes chlorine, along with other contaminants. However, distillation can be time-consuming and requires specialized equipment.
  7. UV Radiation: Ultraviolet (UV) radiation systems utilize UV light to disinfect water and remove chlorine. UV radiation damages the DNA of microorganisms, rendering them inactive. These systems are effective at eliminating chlorine and bacteria but may not remove other impurities present in the water.
  8. Chemical Neutralizers: Chemical neutralizers, such as sodium bisulfite or activated sodium metabisulfite, can be added to water to remove chlorine. These chemicals react with chlorine, converting it into harmless chloride. However, it is important to use these chemicals according to the manufacturer’s instructions.

What is Chlorine?

Chlorine is a chemical element widely used in water treatment to eliminate bacteria, viruses, and other pathogens. It is added during the water treatment process to disinfect the water and make it safe for consumption.

While chlorine effectively kills harmful microorganisms, it can react with organic matter in the water and produce byproducts like chloramines, which contribute to an unpleasant taste and odor.

Health Risks of Chlorine

Exposure to chlorine in drinking water can have potential health risks.

  • Chlorine and its byproducts can irritate the respiratory system, leading to coughing, wheezing, and exacerbating asthma symptoms in sensitive individuals.
  • Prolonged exposure to chlorine byproducts may also increase the risk of certain types of cancers.
  • Therefore, it is important to consider methods to remove chlorine and minimize its potential health effects.

Why Remove Chlorine?

Apart from the health risks associated with chlorine, many people prefer to remove chlorine from their drinking water due to its unpleasant taste and odor. Chlorine can give water a strong, bleach-like smell, and its taste can be off-putting, affecting the overall drinking experience.

By removing chlorine, you can enhance the quality and flavor of your water, making it more enjoyable to drink.

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Chlorine is commonly found in tap water due to its use in water treatment processes. While it serves the purpose of disinfection, its presence can lead to undesirable taste, odor, and potential health risks. Thankfully, various methods are available to remove chlorine from water, ensuring you have access to clean and chlorine-free drinking water.

Whether through simple techniques like boiling or advanced filtration systems like activated carbon or reverse osmosis, you can choose the method that best suits your needs and preferences. Enjoy the benefits of chlorine-free water and enhance your overall drinking experience.


  • Can I remove chlorine from water by boiling it?

    Yes, boiling water for around 15 minutes can help remove chlorine as it evaporates.

  • Do activated carbon filters remove chlorine entirely?

    Activated carbon filters are highly effective at removing chlorine and its byproducts, providing you with cleaner and better-tasting water.

  • Are UV radiation systems effective at removing chlorine?

    Yes, UV radiation systems can effectively remove chlorine from water, along with bacteria and other microorganisms.

  • Do chemical neutralizers alter the taste of water?

    When used according to instructions, chemical neutralizers like sodium bisulfite or activated sodium metabisulfite do not significantly alter the taste of water.

  • Which method is the most cost-effective for removing chlorine?

    Boiling water is the most cost-effective method as it requires minimal equipment, although it is not suitable for large quantities or immediate use.