How to make a homemade dehumidifier - 5 effective methods

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Do you have problems with humidity at home? If so, you will likely have other related problems, such as more heat, cracked and peeling paint on the walls, and even fungus on the wall, silicone from windows and other areas. Excessive humidity at home can become a serious problem, but luckily it can be easy to solve if you act in time, otherwise you will have to remove the mold thoroughly and patch the wall. This makes it even easier to prevent excess moisture from building up indoors.

If you are looking for a way to reduce the humidity of the environment in your home easily, take note about how to make a homemade dehumidifier, because in Green Ecologist we tell you how to do 5 homemade moisture absorbers.

Homemade dehumidifier with calcium chloride

If you wonder what to do to remove moisture from rooms your home, get calcium chloride to trap moisture from the environment. Calcium chloride or CaCl2 is a type of salt used in food and also at an industrial level, especially to de-ice roads, which has the property of absorbing water from the environment and transforming it to its liquid state.

To prepare this home dehumidifier, we recommend using industrial calcium chloride, not the one used in food. Follow these Steps to Make a Calcium Chloride Dehumidifier:

  1. Take a container or several, depending on how many you want to make, that are plastic or glass (type bowl or lunch box).
  2. Divide the calcium chloride between these containers, about halfway through.
  3. Place a piece of kitchen or absorbent paper or a piece of gauze or tulle-type cloth on top of the container.
  4. Wrap a rubber band around the container so that the paper or gauze-type cloth is firmly attached.
  5. Place your new homemade dehumidifiers in different humid corners of your home. You will see that as the days go by it is filled with water from the environment. Be careful when you go to change them because the water will be in a liquid state and you could spill it.
  6. You can empty the containers while keeping the chloride. Let it dry in the open air, in an outdoor area with sun if you have it, and use it again. When you see that it no longer works so well even if there is humidity in the environment, you will have to use new chloride.

Homemade dehumidifier with salt

Another simple option for trap moisture in the house is to use salt, an ingredient that we all have in the kitchen, although it is preferable to use coarse salt instead of the usual table salt. Can prepare a homemade dehumidifier with salt following these steps:


  • 150 g of coarse salt. This is the amount needed to reduce humidity in a medium-sized room (about 25 m2). The proportion is 25 g per 4 m2.
  • 1 plastic bottle.
  • 1 sock.

Steps to make a coarse salt dehumidifier

  1. Make sure the plastic bottle is clean.
  2. Cut the bottle into 3 parts.
  3. Take the top of the bottle, the one with the drinking hole, turn it upside down and place it inside the bottom or bottom of the bottle, keeping the nozzle in contact with the inside of the base of the bottle.
  4. Fill the sock with the coarse salt and knot it at the level of the salt, so that this part is fixed.
  5. If you want, you can cut off the excess part of the sock, but make sure you leave enough so that the knot doesn't unravel.
  6. Put the salt-filled sock on the base of the homemade dehumidifier that you made with the bottle. In this way, the salt will absorb the environmental humidity and if some water falls, it will be collected at the base of the bottle.
  7. Place it in the area you need to lower the water level in the room and check the state of the salt every few days. When it's too wet, remove it. Empty the water base, if there is any, and remove the salt from the sock, placing it on absorbent paper or newspaper and letting it dry in the sun or in the open air, preferably outside to dry well. In this way, even if you now use another salt to continue having your dehumidifier, you can use this next time.

Homemade charcoal dehumidifier

We continue explaining several ways to trap the humidity of the environment and we will tell you how to make a homemade charcoal dehumidifier:


  • 1 bucket with plastic lid
  • 1 knife
  • Charcoal. Use an amount that takes up more than half the cube you have chosen but does not fill it.

Steps to make a charcoal dehumidifier

  1. With the help of the knife or similar pointed instrument, poke several holes in the lid of the jar. Be very careful not to cut or puncture yourself, if you see the knife slip, try to fix the cover before using force.
  2. Place the charcoal in the bucket or pot and cover it with its lid with the holes already made.
  3. Set your new charcoal bucket to catch the smoke where you need to reduce it.
  4. Remember that every few days you will have to check if the charcoal already has too much moisture retained and then you will have to change it.

Another simple way to make a charcoal dehumidifier for use in small corners of the house is as follows:


  • 1 bag made of cotton, gauze or other similar material, which is breathable.
  • Charcoal. To make a single bag you will need little, but if you want to make more bags to distribute around the house, try to have enough coal to fill them all.
  • Tape or rope, in case the bag itself does not have to close it well.

Steps to make a sachet of anti-humidity charcoal

  1. Fill the cloth bag with the charcoal, without completely filling it so that you have space to close it well.
  2. To close the bag, you can put a date or a thin rope around it to tie a knot or several and, at the same time, use it as a handle to hang it. Although you can leave it placed leaning in a corner or hang it, as you prefer.
  3. Another possibility is that you close it by sewing the opening and that you also sew a small ribbon to use it as a hanger, as in the image below.

Homemade dehumidifier with rice

If you want to make a homemade dehumidifier with rice, salt and bicarbonate, take note of this simple step by step.


  • 1 cup of rice
  • 1 cup of baking soda
  • 1 cup of salt, preferably fat
  • Container or bowl without lid
  • Ribbon, thin rope, or rubber
  • Plastic wrap type
  • Toothpick


  1. Put the bicarbonate of soda, the salt and the rice in the container and stir so that they are mixed as well as possible and are well distributed.
  2. Cover the container with the plastic wrap.
  3. Place the kitchen eraser, a ribbon or a thin string-like string around the container to securely hold the film.
  4. With the help of the toothpick, make several holes in the plastic wrap and you will have the container to trap the moisture ready.
  5. Place it where it is necessary to regulate the water in the environment.
  6. As with other absorbents for ambient water, you will have to change the contents of the container when it is already too humid and add the new mixture.

Homemade dehumidifier with chalks

Using chalk is a great solution if you are looking for a home dehumidifier for closet in order to prevent it from accumulating on clothing, or for the car, since if you live in a very humid place you will notice excess water in the environment even inside your vehicle, something that produces more heat and can make driving uncomfortable . Therefore, this method of absorbing excessive water from the environment can be used for or for corners where you can hang the chalk, doorknobs, inside cabinets, on the car mirror, etc. So if you want to make a home dehumidifier for car, the closet, the bathroom or for any corner of your home, find a few chalks of those used to write on blackboards, it does not matter if they are white or colored, and a cloth bag like tulle or gauze or a ribbon or rope. Once you have these simple materials, we will tell you how to prepare a homemade dehumidifier with chalk with this step by step:

  1. Take a few pieces of chalk roughly the same size.
  2. If you are going to use a cloth bag that transpires a lot, make sure it has a drawstring or something similar to close it and hang it. Also, cut the chalks if they are too long for this bag.
  3. Once you put the chalk in the bag and make sure to close it well, you will only have to hang it. If the leftover rope from the closure is not enough, add another string or ribbon to the loop that you have made to close the bag and use it to tie it in the place where you want to hang it.
  4. On the other hand, if you don't want to use a bag, but instead choose to use string or ribbon directly, simply make sure that it is long enough to cover the thickness of the tozas, tie a knot and a loop or other knot to hang them where you need to.

Try to check the chalks every few days to see if you already need to change them.

Plants that absorb moisture

Apart from making your own homemade moisture absorberWe encourage you to decorate your home with dehumidifying and highly decorative plants, like these.

  • Lily of peace
  • Mint
  • Tillandsias
  • Calathea
  • Spider, ribbon or malamadre plant
  • Bamboo palm
  • Niaouli
  • English ivy

Here you can discover more about 20 plants that absorb moisture.

Keep in mind that all these easy to make dehumidifiers at home With simple elements and ingredients common in the home or very easy to find in stores, they are not as powerful as dehumidifiers made in factories, which also come in different sizes and powers. Therefore, the homemade moisture absorbers that we have shown you here may be suitable if you have a corner or a small room with humidity or, if the general humidity level in your house is not very high but you still prefer to reduce it. On the other hand, if you need to remove a lot of water from the environment or from the whole house, or from large spaces such as an entire living room or dining room, you will have to place many of these homemade or, even, it will be more practical buy a dehumidifier one electric.

If you want to read more articles similar to How to make a homemade dehumidifier, we recommend that you enter our category of natural remedies.

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