Best Humidifier for Hard Water 2022 Review

Newborns and adults benefit greatly from humidifiers because it helps to keep homes healthy at a great humidity level within the home. Increasing the humidity of the home will help to keep your family safe and healthier and ensure you protect the effects of dry air in the house while improving the overall indoor comfort. This article will help you to know about the best humidifier for hard water.

Hard water brings a lot of concerns because of its prevalence. While it contains mineral content and a considered healthier, it is also a potential cause of Alzheimer’s, diabetes, and other reproductive health issues.

You need a humidifier that is specifically meant to deal with hard water to prevent damage and ensure you enjoy optimum services.

If you are on the market for a humidifier, you must ensure that you are knowledgeable about the most essential features to look for.

When buying, your health should be your priority, as it is an excellent investment for your home.

This review provides you with six of the best hard water humidifiers in 2021 and includes a buyer’s guide and a list of frequently asked questions.


HumidifierFeatureImage Check Price
Honeywell Easy to Care Cool Mist Humidifier, HCM-710, WhiteEasy to use
TTLIFE 6L Warm and Cool Mist Humidifiers for Large Room Baby Bedroom,Has warm and cool mist options
Vornado EV200 Evaporative Whole Room Humidifier with SimpleTank, 1.5 Gallon Capacity, WhiteSimple to control
LEVOIT Humidifiers for Large Room Bedroom (6L), Warm and Cool Mist Ultrasonic Air HumidifierEasy to use
Vicks Mini Filter Free Cool Mist HumidifierSilent operation
Honeywell HCM350W Germ Free Cool Mist Humidifier WhiteLightweight

Things to Consider When Choosing the Best Humidifier for Hard Water

When choosing which humidifier you need, you should ensure that you know the essential features to look for when buying.

Available Types of Humidification

Cool Mist

These are the types of humidifiers that do not need any heating element. This means that they do not rely on the wick to diffuse the mist within the atmosphere.

If you are dealing with hard water, these are the best type of humidifiers to buy.

They will not malfunction or be affected by mineral deposits.

If there is a person with respiratory issues within the home, these have been shown to help them breathe better.

Warm Mist

These are perfect for soft water or when combined with demineralized within the humidifier reservoir.

They come with a heating element that warms the water as close to its boiling point as possible and therefore dispenses vapor in the environment.

These are loved because they are quiet and eliminate the need for a fan.


These humidifiers work with vibrating sound waves to diffuse the moisture in the environment into a fine mist.

These are also the quietest humidifiers available today and, therefore, excellent for use overnight and in rooms with small children. 

However, if you have hard water, your furniture may be coated with a white powdery residue so that you may need a demineralized.


Once you already know the type of water within your home, you also need to consider the environment you live in.

For instance, if you live in a cold environment, you need to choose a warm mist humidifier since there is warm vapor released from the home, which therefore keeps the room warmer and more comfortable.

You will be saving a lot of money on the heating bills.

People in warmer climates may need to go for cool mist humidifiers, which will keep the home cooler and more ambient.

You may also choose different humidifiers for different rooms within the home.


How many decibels does the humidifier produce? This should be a question you ask when buying. The humidifier has a fan which blows vapor to the environment.

This fan is responsible for most of the noise produced by the humidifier.

However, in many cases, noise levels depend on the speed of the fan.

When the humidifier is set on low, it may be whisper quiet, but this may not be the case at maximum speed.

If you plan to use the device in your bedroom, you need to ensure that it will not affect your quality of sleep.

You need to check the decibels of noise that the fan produces, as this will dictate the amount of noise you will experience.

Always go for one with a silent feature that allows the unit to run at night without waking you up. Also, go for units with 30dB and lower. 


You must always ensure that you buy a humidifier that will purify the air in the entire home.

This means you must get one that is appropriate for the size of your home. More affordable models will service a room of about 500 feet.

However, more expensive models could triple this working space. You will, therefore, have to pay more if your home is bigger.

Other Important Features

There are several other modern features that you should consider when buying your humidifier, which will make it worth every penny you spend in its purchase.

Auto Shut Feature

One of the crucial features to consider when buying because it allows the humidifier to break down without damage.

The water reservoir will need you to refill it every few days.

An out shut-off feature allows the unit to turn itself off if you have not refilled the water.


Most humidifiers do not have this feature regardless of its importance to the health of individuals. This feature activates the auto shut-off feature when the desired humidity level is reached.

Filter Detector

You also need a humidifier that will alert you if the filters need to be unclogged or changed. If it does not, you may end up with more pollutants in the air you breathe. This indicator will inform you when to change the filters and when to clean them.


You also need to think about how much you are willing to spend on the right choice. You will always find one that is within your price range.

But, you must keep in mind that you may have to pay extra to get the special features.

Best Humidifier for Hard Water

  1. Honeywell Easy to Care Cool Mist Humidifier, HCM-710, White

This humidifier comes with plenty of settings options. Therefore, it will be easy to regulate it to your specific expectations.

You can adjust the volume and level of humidity within a specific area to meet your preferred demands.

It allows you the privilege of regulating the operating sound of the gadget. Therefore, you can comfortably use the device and still enjoy the peacefulness of your room.

Additionally, you can conveniently undertake other responsibilities with utmost concentration as the sound will not affect your inner peace.

With this machine, you will enjoy its wicking filter. This is to say; it can also humidify hard water containing minerals to ensure dispensed water is free from white dust.

The machine is also easy to use and refill, hence making it convenient for use anywhere.

Its tank size is ideal to ensure it provides you with up to 36 hours without refilling the water.

This is to show that the gadget will ensure a sufficient supply of water all day.


  • Easy to use and refill
  • Up to 36 hours supply without refill
  • Wicking filter
  • Multiple setting options


  • Its lights are too bright hence making it unsuitable for night use




2. TTLIFE 6L Warm and Cool Mist Humidifiers for Large Room Baby Bedroom, Humidifiers with Remote, Essential Oil, Customized Humidity, LED Touch Display, for Your Family


Humidifying hard water can be complicated with regular humidifiers. However, with this cool mist humidifier, working with hard water will not be an issue. 

It has a large tank, which guarantees you get up to 40 hours without refilling.

With this best humidifier for hard water, you will enjoy multiple settings. Therefore, it will be easy for you to set the humidity to your specified levels all the time.

Additionally, it has an LED screen that displays all your settings hence ensuring that you can monitor all your setting.

It has an option where you can set for cool and warm mist. Therefore, you will not require to use distilled water for enhanced performance.

Its price is also competitive, which makes it convenient even for those working on a budget.


  • Easy to use and refill
  • Large tank size for prolonged performance
  • Remote control feature for enhanced performance
  • Multiple setting controls
  • Warm and cool mist options


  • Not accurate in detecting the humidity levels




3. Vornado EV200 Evaporative Whole Room Humidifier with SimpleTank, 1.5 Gallon Capacity, White

Take control of your household air with this Vornado evaporative whole room humidifier. It has a large tank size ensuring that it covers a wider area.

This guarantees that it makes a great addition to rooms up to 700sq. Ft.

The tank has a simple design ensuring that the unit will enhance the look in your room without attracting attention.

It has simple controls allowing you to select your appropriate setting. You can set the speed for up to 3 different fan speeds. In other words, you can use this gadget in any room and maintain concentration on other responsibilities.

It also features a unique design making it ideal for use both in-office and home. Additionally, the tanks have a simple design for easy refill, which ensures that you can comfortably refill the tanks at the comfort of your home.

The unit also provides you with exceptional performance and has superior support.

Unlike other brands on the market, if you are not satisfied with this unit, the manufacturers guarantee to replace it within five years.

One may ask can you put tap water in a humidifier? The answer is no. The article talks more about it.


  • Simple control buttons
  • Accurate humidity senses
  • Simple tank design for easy refill


  • Limited setting options



4.  LEVOIT Humidifiers for Large Room Bedroom (6L), Warm and Cool Mist Ultrasonic Air Humidifier for Home Whole House Babies Room, Customized Humidity, Remote, Germ-Free and Whisper-Quiet

This device is designed to provide you with comfort when you are using it.

It has exceptional features, which ensures that you get value for the money when you invest in the unit.

It has ultra-silent operations allowing you to enjoy watching your tv shows or talk without noise interruption.

Additionally, the silent operation design also guarantees that you can place the unit in a bedroom and also enjoy a peaceful sleep.

Its ultrasonic design has a pleasing exterior making the unit ideal for any room. It also features ultrasonic technology, giving you the ultimate control.

Additionally, the unit has a lightweight and compact design, which allows you to move it from one room to the other easily.

Apart from all its unique features, the unit also has a dual mist feature. This allows you to choose between warm and cold mist for efficiency.

Additionally, you can also select from three different levels on whichever mist you find appropriate.

Setting up your desired humidity is straightforward with this accessible unit. It has digital readouts, which give you real-time recordings of the humidity levels in your house.

This allows you to adjust the unit to specific humidity levels depending on your needs.


  • Easy to use and refill
  • Adjustable control settings
  • Provides up to 36 hours without refilling


  • The unit is slightly heavy



5. Vicks Mini Filter Free Cool Mist Humidifier Small Humidifier for Bedrooms, Baby, Kids Rooms

If you are looking for a humidifier that will work exceptionally perfect for a smaller room, then all you need is this Vicks mini filter-free device.

It has a compact design for flexibility in various rooms. With this device, it can effectively adjust to provide you excellence in both small and large rooms.

It has a filter-less design allowing you to experience quality mist without having to replace the filters.

In other words, if you invest in this unit, you will enjoy years of exceptional performance without fear of replacing the filters as with other brands.

The tank capacity is convenient to provide you with up to 10 hours of continuous use before refilling.

It also has an easy to maintain design, allowing you to have ultimate control. It has a silent operation technique making it convenient even for use in bedrooms.


  • Easy to maintain
  • Simple tank design for easy refill
  • Silent operation construction


  • Runs for only a few hours




6. Honeywell HCM350W Germ-Free Cool Mist Humidifier White

If you regularly find yourself working with hard water, then Honeywell HCM350W humidifier is all you will need. It is a trusted brand and will ensure to provide you with reliable performance all the time.

 It has a lightweight and compact design for easy transportation and movement from one room to the other.

It emits cool moisture out in the air, allowing you to experience cool and quality air. Additionally, its evaporative mist humidification guarantees that the unit is convenient for all time use.

It uses a scientifically proven technology that provides you with up to 99.9% pure water free from fungus, bacteria, viruses, and mold.

Therefore, if you use tap water, you are guaranteed that your family will enjoy quality water and will not be exposed to any possible danger.

The filters are replaceable; however, for the sake of consistency in quality performance, it is essential to ensure you only invest in genuine Honeywell filters.

Its tank has an easy to refill and clean design to enhance the unit’s performance.

It has simple control settings allowing you to take full control of the way the device operates. Additionally, maintaining it is super easy hence making it a great addition for any room.

When in a low setting, it can ensure to provide you with 24 hours of continuous humidification.

It also has a humidity monitor that tracks the humidity levels in a room for better performance. This also makes it easy for you to monitor the humidity levels and temperature at a given time.


  • Easy to maintain and refill
  • Replaceable filters
  • Compact and lightweight construction


  • The tank is slightly small hence requires numerous refills



Frequently Asked Questions

Q: What Is The Right Amount Of Humidity For A Home?

The ideal range of humidity is between 45% and 50%. Anything about that will breed mold, bacteria, and other pests.

If it goes below 30%, you are likely to increase the chances of people in the home getting colds and cases of flu.

Q: How Do I Know The Right Size of Humidifier For My Home?

 You will have to measure the square footage of your home to find the right size of the humidifier to buy. Most manufacturers will indicate the maximum space the humidifier can cover.

The size of the room will answer the question, How long does it take for a humidifier to work?

Q: Can I Use Hard Water In My Humidifier?

Yes. The humidifiers in this review are all specially designed to work with hard water. However, remember to clean the cartridge frequently.

Q: Can I Use Essential Oils In The Humidifier?

 If you need the humidifier to deodorize, you have to get an aroma diffuser. You can put a few drops of essential oils in the water reservoir for a soothing scent.

However, check the user manual on whether the diffuse can handle essential oils. This article gives the best answers to this.


Regardless of which one you buy, you must ensure that it leaves you comfortable and healthy.

It should also provide you will get a soothing amount of moisture in your home.

Also, keep in mind that you may have to pay a little extra for certain features.

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