How to Make a Homemade Dehumidifier

By Mary Smith. Updated: March 6, 2017
How to Make a Homemade Dehumidifier

Excess moisture is harmful to health and the human body, so we should always try to prevent humidity at home. But this task can be difficult in certain areas, depending on factors like weather, and so we use various techniques to help us reduce humidity levels. Dehumidifiers are very useful for this, although it is noteworthy that those sold on the market can be expensive. That is why we explain in oneHOWTO how to make a homemade dehumidifier.

You'll need:
You may also be interested in: How to Make a Dehumidifier with Rock Salt

Homemade calcium chloride dehumidifier

Use calcium chloride. There are several ways in which you can make your very own homemade dehumidifier. Let's take a look at the first and easiest option:

  1. You need to buy some calcium chloride. You can find this in drug stores or DIY centres, usually sold as small white balls or flakes.
  2. Once you have the calcium chloride (which will be responsible for absorbing the moisture), you must put it in a sock or Lycra stocking and tie a knot.
  3. Then you should create a support on which to fix the sock or stocking so it hangs and does not touch the bottom of the container. You can use a small piece of wood, metal or other material for support to fulfill the function.
  4. Place a plastic saucer or something similar that can collect the water dropped by the calcium chloride under the sock or stocking. By doing so you will see how the homemade dehumidifier reduces humidity levels.
  5. Remember to keep an eye on the container and to empty it when full.
  6. After some time you will have to replace the calcium chloride and place a new pack to continue absorbing moisture from your home.

Make sure you monitor your homemade dehumidifier regularly, as calcium chloride eventually turns to liquid state and can create a puddle.

How to Make a Homemade Dehumidifier - Homemade calcium chloride dehumidifier

Homemade electric dehumidifier

Make a homemade electric dehumidifier. If you have a bad case of mildew buildup, you may need some thorough dehumidifying, in which case you may need the help of a fan to get rid of the excess humidity. Take close note of this tutorial, as it is a bit more complicated but will be just as effective as purchasing a commercial one.

  1. Get a bucket and create a hole 1/4in big in the center of it.
  2. Get a plastic net and cover the hole over it to fit.
  3. Get coarse salt and fill the bucket with it. The net should avoid the salt from falling directly.
  4. Put the bucket on a stand with a bucket underneath. This second bucket will collect the water from the excess moisture that the dehumidifier will catch.
  5. Put a fan on a stand next to your dehumidifier for more effectiveness.

Homemade silica gel dehumidifier

Use silica gel. You know those little packets that come with your brand new coat marked toxic? That is silica gel, one of the best products to make a desiccant to prevent moisture and mildew buildup, though it will not be as effective as the methods mentioned above.

This dehumidifier will help get rid of humidity when it has built up in a certain area, especially if it is an enclosed space such as a wardrobe.

  1. Carefully open the silica gen packages and pour them in a bowl, you'll need a minimum of five.
  2. Get a glass jar and create as many small holes as you can on the top.
  3. Pour the silica gel in the jar and close with the top perfectly screwed on.
  4. Place the glass jar in the place where you want to get rid of the humidity.

To know when you should replace the silica gel balls in your dehumidifier for new ones, keep an eye on their color. When the balls become pink, it means that they are saturated with water buildup and need to be changed.

How to Make a Homemade Dehumidifier - Homemade silica gel dehumidifier

Creamer dehumidifier

Another highly effective method to make a dehumidifier is by using non-dairy creamer or coffee whiteners. Though they are intended as a dairy substitute in coffee, the truth is that coffee whitener is actually an effective desiccant.

  1. Get a medium sized bowl and pour some powdered coffee whitener in it to the top.
  2. Leave it on a safe surface in the room where you want to create your dehumidifier.
  3. Wait until it has hardened, this will pick up the excess moisture.
  4. Remove and change again.

This trick is surprisingly one of the most effective methods to get rid of humidity at home.

Use rock salt. If this method doesn't work, you can also try making a dehumidifier with rock salt. It's a pretty easy and effective method, and at oneHOWTO you can find a step by step tutorial to make it.

Use charcoal. Did you know about the household uses of charcoal? Apart of being great for health, it is actually very useful to get rid of moisture in the summer too. Follow these steps for your charcoal dehumidifier.

  1. Get hold of a can with a top or a plastic container that can also be sealed.
  2. Create a hole on the top like we did with the silica gel.
  3. Add just one handful charcoal in briquettes in the container.
  4. Close or seal it.
  5. Replace every two months approximately.

Your dehumidifier is now ready to use. This is also a home remedy that is best for enclosed and small spaces.

If you have a lot of humidity at home, we advise you to read the following articles:

If you want to read similar articles to How to Make a Homemade Dehumidifier, we recommend you visit our Maintenance and home security category.

  • You can also purchase a dehumidifier for a reasonable price at specialized stores.

Write a comment about How to Make a Homemade Dehumidifier

What did you think of this article?
Thank you. In an effort to rid our home of unwanted plastics and chemicals this was very helpful. I will try the coffee whitener, if it's safe for human consumption, it's safe for the environment.
OneHowTo Editor
Hi Barbara,

It's always best to be natural if you can. Hope it works for you!
A very informative and helpful article. I am about to try some of them to help get rid of the dampness in my kitchen cupboards,as the ones you buy in the stores do not last very long.
Thanks a lot.
OneHowTo Editor
We're glad it was useful! Please let us know which worked best for you, we'd love to get some feedback!

How to Make a Homemade Dehumidifier
1 of 4
How to Make a Homemade Dehumidifier

Back to top