You’ve probably looked into the water tray of your dehumidifier and thought, “That looks clean—can I drink it?” While it may seem like a convenient way to reuse water, the short answer is no: water from a dehumidifier is not safe to drink.
In this article, we explain exactly why dehumidifier water is not drinkable, how it compares to distilled water, and what safe alternatives you can consider. If you’ve recently rented a unit from Dehumidifier Rental, or are using one at home, understanding what to do with the collected water is key.
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Why Dehumidifier Water Looks Clean but Isn’t
Dehumidifiers work by drawing moisture from the air using a refrigerated coil. As the air cools, moisture condenses and drips into a collection tank. While this process collects water, it doesn’t purify it.
Even though it looks clean, the water from a dehumidifier can contain bacteria, mould spores, dust, and metal particles from the internal coils or plastic housing. These contaminants make it unsafe for human consumption.
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Common Contaminants in Dehumidifier Water Include:
- Airborne Bacteria from the surrounding environment
- Mould Spores especially in damp areas
- Dust and Debris from filters or internal components
- Trace Metals from the machine’s condenser coils
Drinking this water can cause gastrointestinal issues or other health risks, especially for vulnerable individuals.
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Is Dehumidifier Water the Same as Distilled Water?
Many people confuse dehumidifier water with distilled water. After all, both come from evaporated moisture, right? Not quite.
Distilled water is created by boiling water into steam and re-condensing it in a clean container, leaving impurities behind. This is a controlled, high-temperature process that removes virtually all contaminants.
In contrast, dehumidifiers operate at lower temperatures and don’t involve boiling. This means they don’t eliminate bacteria, heavy metals, or other pollutants. So while both result in collected water, only distilled water is safe to drink or use in sensitive devices like irons or humidifiers.
Safe Ways to Use Dehumidifier Water
Although you shouldn’t drink it, you can reuse dehumidifier water in several environmentally-friendly ways:
1. Watering Plants (Non-Edible)
Use the water for houseplants or outdoor flowers, but avoid edible plants to reduce the risk of contamination.
2. Cleaning Floors or Toilets
It’s fine for mopping or flushing toilets—saving clean water in the process.
3. Car Washing (Final Rinse)
Its low mineral content makes it good for a spot-free car rinse.
4. Steam Irons (With Caution)
Only use it here if it’s been filtered thoroughly, as minerals or dust may still clog your iron.
Can You Purify Dehumidifier Water?
Some people attempt to purify dehumidifier water using boiling or filtration. While this can reduce some bacteria, it doesn’t guarantee complete safety.
Unless you have access to professional-grade purification equipment, do not rely on dehumidifier water for drinking or cooking. The risks far outweigh the convenience.
Final Thoughts
To sum up, will a dehumidifier help with damp walls? Absolutely—it’s an essential tool for moisture control and preventing mould. But when it comes to drinking the water it collects, the answer is a clear no.
Instead of pouring it down the sink, reuse it smartly in non-consumable ways. If you’re renting from Dehumidifier Rentals, always empty and clean your unit’s tank regularly to avoid bacteria build-up, and ask us for tips on eco-friendly reuse.
FAQs
Is water from a dehumidifier distilled?
No, it is not. Distilled water is produced through boiling and condensation, which removes impurities. Dehumidifier water is condensed but not purified.
Can I use dehumidifier water in my iron?
Only if it’s filtered first. Dehumidifier water may contain dust or metals that could clog or damage your appliance.
Is dehumidifier water safe for pets?
It’s best to avoid giving it to pets. Animals may react to impurities in the water just like humans.
Can I use this water for my plants?
Yes, but only for non-edible plants. Avoid using it for vegetables, herbs, or fruit-bearing plants.
What’s the safest way to dispose of dehumidifier water?
Use it for cleaning or gardening. If you need to discard it, pour it down a utility sink or toilet—not onto the ground where it could affect soil quality.
Let us know if you’d like to learn more about safe dehumidifier use or how to get the best performance out of your rental unit.
