Best Water for Humidifier

Humidifiers come to our rescue when there isn’t enough moisture in the air. It provides our skin another chance to breathe by regulating moisture when the relative humidity fluctuates.

Regrettably, we frequently overlook them by failing to provide them with sufficient water to allow them to perform at their best. Is this the best course of action? What kind of water is best for humidifiers? Let’s figure it out so we don’t shorten your humidifier’s life without your permission.

Can You Use Purified Water in a Humidifier?

Actually, purified water is intended to be used in a humidifier. Minerals, germs, and other residues that could impair your humidifier are not present in this water.

purified water can be produced in a variety of ways.  The water evaporates into vapor during distillation, leaving all of the residues behind. This water is obtained once it settles down, which is what we term “purified water.”

There are myriad reasons why utilizing purified water in a humidifier is encouraged. They are as follows.

Related reading: How To Make Distilled Water For Humidifier?

Humidifier Stays Clean When Purified Water is Used

There is no residue in purified water; it is 100% pure water! This kind of water has previously been processed to remove any residue that may have been present in the water. If it contains substances like calcium, sodium, or magnesium, they will dry out and build a rigid coat on the device while heating. These minerals have a serious influence on both the people who inhale them and the humidifier itself.

Purified Water Eliminates the Growth of Bacteria

Mold is quite unlikely to grow in purified water. One of the factors is that they are devoid of mold spores. Next, even if they are existing, they will be deprived of the minerals they require to survive. As a result, no growth of mold will occur within the humidifier.

Related reading: What Is A Whole House Humidifier And How Does It Work?

Purified Water Enhances the Overall Quality of Air in the Home

The heat produced by the humidifier to evaporate the tap water causes the white powder to develop. The mineral present in the water dries out as a result of the heat, culminating in a white powder.

Since there are no minerals present in the purified water, it means there will be no formation of white powder. So, there will be no white “humidifier dust” coming along when the device discharges moisture air.

Can You Use Tap Water in a Humidifier?

No, you can not use tap water in your humidifier. There are dissolved minerals, solid residue and bacteria in tap water that have the potential to harm the humidifier and also you.

Although this does not completely rule out the use of tap water, it does necessitate ongoing device maintenance. Apart from cleaning the mineral layer within, you must also change the filter regularly.

If you don’t have any other choice than to drink tap water, a demineralization cartridge can help. A demineralization cartridge assists in the removal of minerals from tap water, resulting in cleaner air.

Read more: Can I Use Tap Water in My Humidifier?

Can You Use Filtered Water in a Humidifier?

Although filtered water may appear to be a smart option, it should not be utilized for a variety of reasons. To begin with, filtered water may be devoid of contaminants, but it does contain dissolved minerals. Another factor to consider is that they contain microscopic organisms.

Even if you filter properly, treating tap water with this method is extremely difficult. As a result, it can be concluded that filtered water is similar to tap water, except residues. As a result, it’s not recommended for use in a humidifier.

Related Reading: Crane Drop Shape Ultrasonic Cool Mist Humidifier Review

Can You Use Bottled Water in a Humidifier?

We would depreciate bottled water for the same reason we would depreciate tap water. Although this type of water may be residue-free, it does contain dissolved minerals.

Several companies purport to offer spring water. But natural water, on the other hand, might contain contaminants that have not been treated. However, you may bank on it to some level since there will be no immediate consequence if you use it for a day or two.

The actual issue will occur if you try to utilize it daily. The humidifier will become filthy as a result of scale build-up if you use bottled water frequently.

Can You Use Boiled Water in a Humidifier?

Boiling water is another sort of water that should not be used in a humidifier. Although the temperatures are eradicating the microorganisms that are present, the dissolved minerals and solid residues remain.

Boiling water has the maximum mineral concentration when compared to other types of water. As the vapor evaporates from heating, the water to mineral ratio increases.

However, you might question why boiled water and distilled water aren’t treated the same way. This is a prevalent misunderstanding among the general populace. The vapor from boiled water is collected and used to make distilled water. As a result, there are no residues or dissolved minerals in it. Boiling water, on the other hand, just heated and collected amongst itself.

Is it, however, superior to tap water? Definitely! This is because heating kills mold spores, preventing germs from growing.

Related Reading: Sunpentown SU-4010 Humidifier Review

Should You Use Hot or Cold Water in a Humidifier?

Apart from the diverse kinds of water, there is yet another item to focus on before using them. And that is the temperature.

Which one, though, should you put in your purifier? Is it better to use hot or cold water? Well, it is entirely up to you. However, there are a few things you should be aware of before proceeding.

The type of humidifier you have should be the first aspect you look at. If it’s a conventional humidifier, you don’t have much of a choice. However, if it isn’t, continue reading to learn more.

Using hot water in the humidifier enhances the relative humidity in the air. A humid environment, on the other hand, might cause suffocating in some persons. Furthermore, if direct hot water is utilized, there is a concern that the machine will be affected.

Hot water is a major boost for the growth of any bacteria that is present in it.  As a result of this, it’s feasible that they’ll end up in the air around you. Coldwater, however, has a lower mineral to water ratio. As a result, bacterial growth is negligible.

It’s never a good idea to use hot water. Of course, you don’t want your pet or infant to tumble over a humidifier that’s filled with hot water. When you use cold water, it creates a soothing atmosphere and makes breathing easier. There is no risk in utilizing them altogether.

Temperature isn’t an issue if your equipment is compatible with both types of water. This is because these devices regulate the temperature of the water on their own. However, avoid using really hot water in your humidifiers.

Related Reading: Best Humidifier Review & Buying Guide


If you want the most out of a humidifier, you’ll have to go above and beyond in terms of maintenance. Whether it’s a cheap or high-end item, treating it properly can extend its life.

Now, you’re residing in a dry-climate region, a humidifier might be really beneficial. As a result, we recommend that you use the best water for humidifiers so that you can enjoy cooler and more comfortable moisture. You also won’t have to worry about it needing to be serviced.

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