Is Dehumidifier Water Good for Plants, is a worry you don’t want to throw the water away while you would be using a dehumidifier to collect water from the air is an excellent recycling method, and you can use the water for different purposes, including watering your plant.

Is Dehumidifier Water Good for Plants

However, the question is whether the water that has been absorbed by the machine is good for plants or not.

Our experts are going to answer all your questions.

Is Dehumidifier Water Good for Plants?

Yes, dehumidifier water is good for plants, and you can use it for your plants without any fear of ruining your plant’s health. Since this water is pure from harsh minerals, which means it will be like irrigation with rain water. 

The majority of dehumidifier work by eradicating extra moisture or water from the air by chilling it down, leaving the room less damp. What it does is refrigerate the air to concentrate water to drive it out of the air and reserves the water in its reservoir attached to the machine.

Then, the dehumidifier takes the air over hot coils before giving it back into the space. The collected water by this process, similar to rain, can be reused instead of wasting it on the drain, and many gardeners use it in their gardens.

But the problem with the process is that harmful substances like bacteria, mold, or dust don’t get removed from the water collected in the reservoir because the dehumidifier doesn’t boil the water, like the distillation procedure cannot make the water safe to drink.

When Shouldn’t Dehumidifier Water Be Used?

Yes, you can use dehumidifier water on all of your plants without any tension, unless there is a fungal infection in another plant. Which means you have to ensure the water is clean enough, which is only possible if the source of gathered water is neat and clean. 

– Fungal Infection Occurs

If a dehumidifier only collects water vapor from a perfectly clean house, then the water can obviously be good for your indoor and outdoor plants. However, you should avoid giving your plants the water that the dehumidifier produced in some cases; one of them is having plants with the fungal disease at home.

If there are some house plants that have been suffering from fungal infection in your home, several fungal spores can be paddling everywhere in the indoor air

Fungal Infection Occurs

However, if you have the machine, and you want to know how to purify dehumidifier water, the process is simple, you can easily do it at home by just boiling it. Boiled water is free from viruses, microorganisms, and bad odor. 

You can also use a distillation device which causes the water to evaporate by heating, separating pollutants, and residue. The evaporated water is stored in a different container while the impurities and minerals are left behind.

– Avoid on Produce

As the dehumidifier draws the air, it can collect those concentrated spores in the water, which can be dangerous if you reuse it. You must not use this water for edible plants such as salad vegetables, and vegetable confetti, you are planning to eat next time.

You must avoid using it on the plants you are cultivating to eat as well as your favorite herbs, including basil, oregano, mint, thyme, cilantro, and more.

Avoid on Produce

This is because you cannot be watering the plant that is going to be producing or giving you a fruitful result. In short, if the machine’s water is not properly cleaned out, then remember that it will be harsh for the plant to survive an extended amount of this water, because it would contaminate or harm the fruit.

– Avoid When The Machine is Dirty

On the other hand, note that this water is as clean as your dehumidifier is. If you need to figure out how clean your dehumidifier is and the cleanliness of the source it collects water from, you should refrain from using it on edible plants as well as herbs.

Avoid When The Machine is Dirty

Moreover, suppose the collected water remains stagnant in the dehumidifier reservoir for a long time, and in that case, it causes detrimental microorganisms like bacteria and mold to grow, which you must not use to water plants.

Overall, reusing this water is safe for watering your indoor and outdoor plants; if the source from where it collects water and the humidifier itself is clean. When you clean it well, you would avoid all types of harm coming to your plant, and the successful thrive they would have would not be hindered. 

– High Alkaline Level 

The water collected by the dehumidifier has a pH of seven, which is considered neutral on the Ph measurement scale. Even though the dehumidifier water pH is neutral, it is still not safe because it may mistreat the soil, and raise the pH of the soil, if only the plant is the type that requires, or else the process will be very challenging, because your plant will face different problems. 

High Alkaline Level

A dehumidifier process does not vaporize the water before liquefying it, which results in collecting impure and undrinkable water. On the other hand, the distillation process makes the water clean and pure, which is drinkable. Vaporization is the reason distilled water is cleaner than water that has been purified.


1. Is Dehumidifier Water Comparable To Distilled Water?

Yes, dehumidifier produced water can be comparable to distilled water as it collects significantly clean water. But distilled water is way more hygienic than the water the dehumidifier collects into its reservoir as during the process of making distilled water, water gets boiled and gets germ free, including bacteria, dust, and so on.

However, this water is also very clean, but the machine doesn’t use the boiling method. So, it cannot eliminate harmful substances completely.

2. Can You Drink The Water of Dehumidifier?

No, you cannot drink this water, You can use it for your plants or for any other purposes. This is because, drinking this water is not safe for drinking as standing water can nurture biological pollutants, including mold, decay, and algae, especially if you don’t clean the reservoir regularly, according to the Environmental Protection Agency.

Moreover, the condensate water can hold metal remnants from the components of the dehumidifier.


The dehumidifier process is a fabulous way to recycle water, and you can use the recycled water on your plants.

Let’s sum up the vital points we found after reading the article so far:

  • Dehumidifier made water is clean and completely safe for indoor and outdoor plants, except plants you grow for eating.
  • The water from the dehumidifier you use, you have to ensure that the dehumidifier collects it from a clean home.
  • If there are any fungus-infected plants in your house, you must avoid collecting water from the house to reuse it on other plants, as fungal spores can exist in the air drawn by the dehumidifier.
  • Always keep your dehumidifier reservoir clean and ensure that the water doesn’t stand in the tank for a long time, as it can help grow bacteria or molds in the water.

If you can keep your dehumidifier and house clean, then the water from the dehumidifier will also be clean, which is suitable for any plants but edible ones and your herb garden. Keeping the growing water shortage in mind, we all should use this type of water.


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