How to Make Distilled Water for Humidifier

Dry air is never a favorable companion. Staying in an area with dry air, that is air with no moisture in it can have various effects on your body, including but not limited to itchy dry eyes, dehydration of the skin, and the constant need to drink water. If you live in areas that are dry or semi-dry, then these symptoms listed may seem very familiar.

Humidifiers are one of the most common solutions to this problem. They replenish the moisture in the air, irrespective of size, shape, company, or model all of them serve this purpose. However, humidifiers require distilled water, and buying distilled water on the market may raise the expenses of maintenance for the humidifiers.

A friendlier alternative is to make your own distilled water for the humidifiers. If you have a humidifier or are planning to get one, and do not want to spend too much on buying the distilled water required for it, then this is the article for you, through this article we will discuss various ways to make distilled water.

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The Workings of a Humidifiers

Before we list the ways in which to make distilled water, it is important to know how the machine works. Humidifiers, as the name suggests work on humidity, in particular, they function on the principle of relative humidity. What is humidity? Humidity is nothing else other than the moisture present in the air.

The relative humidity is a bit more complex, is the percentage of humidity available in the air of one cubic meter currently to the maximum amount of moisture the one cubic meter air can hold in that particular temperature.

It can sound complicated, so here is an example to explain. A meter cubic of air at forty degrees celsius can hold a maximum of thirty-six grams of moisture. This means that at a particular time, if the air, at forty degrees celsius has a humidity of thirty-six grams for every cubic meter of air, the relative humidity then will be 100%. If the same air had only twenty-seven grams of moisture, the relative humidity would be 75%, and so on and so forth.

Humidifiers supply extra humidity when the relative humidity is below the required percentage. The required percentage of humidity fluctuates depending on the season. While in winters the humidity in the house should be from 50% to 70% in summers the adequate percentage lies between 60% to 75%

Types Of Humidifiers

There are five different types of humidifiers differentiated on the mechanics they use to humidify the air around them, these are.

  1. Impeller humidifiers

Impeller humidifiers provide a cool mist with the use of a rotating disk. Distilled water is used in humidifiers to prevent clogging of the cartilage which can occur otherwise.

  1. Central Humidifiers

Central humidifiers work as a unit to the HVAC system that they are usually paired with.

  1. Evaporators

Evaporators on the other hand make use of a fan that blows out hot air onto a filter or a wet belt.

  1. Ultrasonic humidifiers

Ultrasonic humidifiers are known as the most efficient or productive of all available types. They produce both mist and ultrasonic vibrations simultaneously. This is because it works by converting electromagnetic frequencies into mechanical vibrations.

  1. Steam vaporizers

Steam vaporizers, on the other hand, use electricity to provide cool steam. It should be noted that this type of humidifier uses hot water to produce the steam that can cause severe burns to anyone who comes in contact, so should be treated cautiously and kept away from the reach of children and babies.

Why Should You Use Distilled Water?

The major reason why distilled water is integral to the working of a humidifier is related to cleanliness, the use of non-distilled water can cause the humidifier to become dirty and clogged. The humidifier works by heating the water in it, which is then released into the air. Therefore any solvents present in the water will remain behind.

Using a dirty humidifier can lead to a number of health problems. Hence distilled water is used for the smooth and clean running of humidifiers. Moreover, you should also change the water in your humidifier at regular intervals so that there is no contamination. When humidifiers use contaminated water, it clogs the humidifiers and allows bacteria and mold to grow.

Since these usually grow at the edges of the steam nozzles present on the humidifier, they can blow these bacteria out into the air that you breathe. Moreover, using distilled water can prevent your humidifier from becoming unusable and increase the life of the humidifier. listed below are other ways to keep your humidifiers clean beginning with distilled water

Use of Distilled Water

Tap water has a lot of minerals present in them. These minerals cannot be separated through boiling. Using water with these minerals on humidifiers can cause them to clog. Once a clog is present in the humidifier it serves as a breeding ground for various bacteria and fungi.

Cleaning of the Humidifier.

The humidifier needs to be disconnected and cleaned almost every three days. Doing this gets rid of any mineral deposits that may be present in the tank. For more thorough cleaning use a disinfectant such as a hydrogen peroxide or chlorine bleach. The use of disinfectants kills any mold or bacteria that may be present.

Changing of Filters

Each humidifier model and type comes with its own manual and has unique steps involved in the changing of filters. These manuals also state how frequently these filters need to be changed. Read through the manual that comes with your filter and follows the instructions and recommendations given.

Keeping the area around the filter dry

There might be times where you are overusing your humidifier, if you happen to see water droplets on surfaces that are around the filter, such as cutlery or furniture reducing the use of the humidifier.

Replacing the humidifier

There might come a time, that your humidifier might n get clean even after persistent cleaning. This might be an indication that the humidifier has passed its use and needs to be replaced.

How To Make Distilled Water for Humidifier

Since we have discussed why it is essential that distilled water is used in humidifiers, both for your health and for the longevity of the humidifier itself, listed below are the various ways you can make distilled water at home if you do not want to buy it at the market. All these methods use household items that will be available around the house but are used innovatively to make distilled water.

Method 1. Make distilled water with a kettle

If you didn’t know this, we can make distilled water with a kettle at home. To make distilled water through this method you will need the following objects

  • Water
  • A strong heat source to heat the water
  • A kettle
  • A glass or metallic jar to collect the water
  • A metallic or copper coil pipe that is approximately forty-five centimeters long. This pipe should fit the outlet of the kettle.

Once you have all these objects you can begin to make your distilled water. Follow this step-by-step instruction to make distilled water using a kettle.

  1. Attach the copper or metallic coil pie to the nozzle of the kettle. Ensure that there is no passage for air at the junction.
  1. Pour water into the kettle.
  1. Place the kettle filled with water on top of a heat source, such as an electric pad or gas stove.
  1. At the other end of the pipe place the collecting jar.
  1. Switch on the heat source to begin heating the water.
  1. The steam produced by the water heating in the kettle should be condensed through the pipe and water should fill into the collecting bowl.

To hasten the process of condensation, you can pour cold water over the pipe continuously. Please ensure you do this without pouring the cold water on the heat source itself as you can risk putting it out.

An alternate way of cooling the water is by placing a small channel of water below the pipe. This can collect the liquid that is being poured onto the pipe.

The mechanism used in this method is simple.

When the water in the kettle is heated through the heat source it evaporates. As the only point of escape is through the copper pipe it goes there. That is why it is essential to make sure that the connection between the pipe and the kettle nozzle is airtight, or the steam can escape from the gaps.

When the vapor passes through the pipe it condenses because the temperature in the pipe is low. Pouring cold water lowers the temperature, even more, thereby making the process faster.

When the vapor reaches the end of the pipe it has finished condensation and is now distilled water. Once the water collected in the bowl has cooled you can use the humidifier.

Method 2: Make distilled water using a floating bowl

To make distilled water through this method, you will need the following objects,

  • Water
  • Ice to aid in condensation
  • A heat source to heat the water
  • A glass bowl to collect the water
  • A glass lid
  • A cooking pot

Once you have all these objects you can begin to make your distilled water. Follow this step-by-step instruction to make distilled water using a floating bowl.

  1. Fill the cooking pot with water.
  1. Take the glass bowl and place it inside the cooking bowl in an upright position. You must make sure that the bowl is floating and does not sink or touch the bottom surface of the cooking pot, add more water if necessary.
  1. Once this is done, put the cooking pot over a heat source such as a gas stove.
  1. Start heating the water, once the water starts producing steam, close the cooking pot using a glass lid. Ensure that the glass lid is placed in an upside-down position and it caves near to the center.
  1. Put ice cubes on top of the glass lid near the center. This helps speed up the condensation process. After some time the bowl would have distilled water that can be used for the humidifier.
  1. Repeat the process as needed.

Method 3: Make distilled water through solar power

Once you make distilled water through this method, you will not require any additional attachments or investments to make distilled water, hence it is a very effective method. The only thing you should note is that you constantly monitor the level of water in the unit and make sure that there is enough water available for functions at all times.

For this method to work you need to ensure that there is nothing blocking the distiller from the sun. Building this mechanism does not require any technical prowess and can be done without the help of a professional. To make your distilled water you need to do is follow these steps.

You will need

  • A wide shallow container for water.
  • A wedge-shaped glass container with a top that stands downwards.

The working is pretty simple, on a hot day, the water is heated through the solar heat which causes it to evaporate, this evaporated water then gets condensed on the standing top of the container.

Once there is enough water, they will start rolling down. At the bottom, you need to build a collecting tunnel that is attached to a pipe. The pipe should lead to a jug or a container, that is kept according to your convenience.

The water collected in this container is distilled. For in-depth instruction, please look up videos available online that provide a detailed step by step guide of how to build a solar power water distiller


Those were our suggestions on how to make distilled water for humidifier. It is necessary that you use distilled water for your humidifiers to prevent clogs, molds, fungi, and bacteria that may grow in the humidifier through the deposition of minerals.

The bacteria and molds can be harmful to your health and also decrease the lifespan and efficiency of the humidifier. While buying distilled water may poke a hole in your budget, there are alternative ways where you can make distilled water at home.

This can be done using a kettle, a bowl, or solar power. We also discussed the functions of humidifiers, the different types of humidifiers available, why you should use distilled water, and other ways to keep your humidifiers clean.

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Habitify Editorial
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