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Best Humidifier for Dry Mouth: Buying Guide and Helpful Tips

If asked to propose a solution for people who have a dry mouth, a humidifier would probably be one of the last things you would think of, if at all. But besides drinking water, improving overall oral care, and avoiding dehydrating habits, using a humidifier for dry mouth actually turns out to be a great idea, especially if you spend a lot of time indoors.

A humidifier does work wonders for those with skin issues and allergies and its effects are not limited to that area. When you notice that the dry air from your home or office accentuates the symptoms of dry mouth, you could benefit from using a humidifier to keep your mouth and respiratory system at optimal moisture levels.

How Can a Humidifier Help with Dry Mouth?

In case you know absolutely nothing about this condition, dry mouth is also known as xerostomia and it consists of the inability of the salivary glands to produce enough saliva, therefore it leads to experiencing cracked lips, frequent thirst and a general sticky feeling in the mouth and throat area.

But how can a humidifier help when your salivary glands do not produce enough moisture to lubricate the mouth? In some cases, a dry mouth is a consequence of environmental conditions. If the space you live or work is characterised by a lack of humidity, you might encounter symptoms of dry mouth.

By increasing the humidity levels of the ambient air, a humidifier enhances your breathing and helps with the symptoms of dry mouth.

Choosing Between Cool Mist and Warm Mist Humidifiers for Dry Mouth

Picking the best humidifier for your specific requirements can sometimes be confusing. While warm mist humidifiers are best during cold winter days and nights, if you are looking for the best humidifier for dry mouth at night, for example, you should choose a model that does not need frequent refills. So, make sure to look for a cool mist humidifier with a larger tank.

Important Features When Purchasing a Humidifier for Relieving Dry Mouth

Types of Humidifiers and Their Features

There are various models of humidifiers available on the market and most of them offer extra features, apart from the usual function of this product, which is to regulate the moisture levels in your environment. Before purchasing a humidifier for dry mouth, spend a little time comparing their features and evaluate some essential elements that will make a difference when it comes to relieving your symptoms.

If you choose a steam vaporizer, you should know that these products use electricity to create steam, that is cooled down and then released into the air. Ultrasonic humidifiers, on the other hand, produce steam by using vibrations instead of electricity. Last, but not least, there are evaporators, whose system blows air past evaporating water to produce humidity. If you are going to use it in a space that is frequented by children, a wise option would be an impeller humidifier, or a cool mist humidifier, as it vaporizes water using rotating disks instead of heat, which can be dangerous to pets and children.

Another valid option is the one consisting of a central humidifier. This is ideal if you intend on connecting it to the AC in your living or working area.

As you may notice by skimming through some of the customers’ reviews on Amazon, for example, people with dry mouth usually choose ultrasonic cool mist humidifiers to relieve their symptoms.

The Size of a Humidifier Matters

You should consider the dimensions of the area where you are going to use a humidifier and check the square footage that the product can reach before purchasing. A three-gallon unit, for example, could cover up to 800 square feet, whereas small, travel-sized humidifiers, will probably reach 100 square feet at best.

Water Tank Capacity and Noise Levels of a Humidifier

While the water tank capacity will directly influence the way your machine will satisfy your needs, such as run all night without needing a refill, noise levels are also important if you want a quiet environment and plan on getting a good night’s sleep while being properly hydrated.

Highest Rated Humidifiers for Dry Mouth

Pure Enrichment MistAire Ultrasonic Humidifier – A compact cool mist humidifier model with low noise levels and an optional LED nightlight, ideal for medium-sized spaces. If you are looking for a humidifier that helps with a dry mouth at night, this model produces cool mist for up to 12 hours, so you can get a good night’s sleep and wake up with reduced symptoms.

TaoTronics Ultrasonic Cool Mist Humidifier – It has a four-litre tank capacity, nightlight and sleep mode, and users report that it is a quiet humidifier, with a built-in humidistat. With over 7.500 high reviews on Amazon, this humidifier is worth checking out if you want to feel comfortable again, after dealing with dry mouth for a long time.

Pure Enrichment HUME Ultrasonic Cool Mist Humidifier – This humidifier has an easy-clean 3.5-litre capacity tank, and it is ideal for large rooms, lasting up to 50 hours. It allows variable mist settings to meet your comfort level and it has a whisper-quiet operation feature, which makes it ideal for nurseries or offices. The product also comes with a 5-year warranty, which speaks volumes in terms of quality.

Honeywell HCM 710 Easy to Care Cool Mist Humidifier – This humidifier boasts Easy to Fill patented technology that makes filling it as easy as watering a plant. It comes with an antimicrobial filter and is equipped with a self-regulating evaporative humidifier system. The illuminated water window alerts you when you need to refill the 1-gallon tank, while the 3-speed settings allow you to adjust humidity and sound levels.

Honeywell HCM-350 Germ Free Cool Mist Humidifier – Another great product from Honeywell, this is an evaporative model that runs quietly and is easy to fill and clean, ideal for large spaces. It works in rooms as large as 400 square feet. It comes with a UV light that eliminates any microorganisms in the water that might end up in the air you breathe.

Vicks Cool Mist Humidifier – This model regulates air moisture for up to 30 hours, it has a slot for Vicks VapoPads, that allows you to include soothing scented vapours, and it has an automatic shutdown setting when the water runs out. The best thing about this humidifier is that it is filter-free, so you do not have to tend to it all the time.

AIRCARE 826000 Space-Saver, White SpaceSaver Evaporative Humidifier – It comes with an adjustable humidistat and Trapmax Filter Technology with protection. Based on customer reviews on Amazon, it maintains consistent humidity levels, it is easy to set up and it is quiet for a product of its size.

Bionaire Ultrasonic Humidifier – Disperses both warm and cool mist, which helps alleviate sinus irritations, as well as chapped skin and dry mouth. It is equipped with a 2-gallon water tank and a demineralization cartridge instead of traditional filters. This eliminates the issue with the white dust emissions that most ultrasonic models produce, while the antimicrobial protection eliminates issues regarding mould build-up.

LEVOIT Ultrasonic Air Humidifier for Home– Ideal for large spaces and extremely dry weather conditions. It has a built-in humidistat, a large 6-litre tank that allows the humidifier to cover spaces up to 750 square feet, and is extremely quiet, compared to other ultrasonic models. It can alternate between warm and cool mists and you can easily control it with a remote, while the display offers clear information about the humidity levels. The manufacturer even offers a 2-year warranty with the product.

Air Innovations Humidifier – A Whisper-Quiet Cool Mist Ultrasonic Humidifier for rooms up to 600 square feet, with remote control, digital display, and aroma tray. It features a 1.7-gallon tank that can run for up to 96 hours on the low setting. This translates to 12 nights of comfortable sleep without having to fill up the tank! Not to mention it comes equipped with a permanent ceramic filter you never have to replace, 5 mist settings, an adjustable humidistat, 24-hour timer and remote control. Bonus: The entire unit and base of the humidifier are manufactured using antimicrobial plastic to prevent bacteria build-up.

Other Questions

What is a dry mouth a sign of?

Normally a dry mouth means nothing at all, possibly you want a drink. However a dry mouth can be a sign of certain health conditions: Yeast infection (thrush) in your mouth, diabetes, stroke (I had a stroke, and didn't get a dry mouth), HIV/Aids. Tobacco and alcohol also cause a dry mouth

Is honey good for dry mouth?

Both honey and lemon are good for a dry mouth. If you are getting this a lot, try drinking tea with honey and lemon to try to cure it.

Is dry mouth a serious problem?

A dry mouth is not a serious medical condition on its own. It can be another underlying medical condition that may require treatment, for example, tooth decay.


Please Note: Just because a humidifier is marked, for example “Baby Room”, it will still work for other things, for example “Living Room” or “Plant Humidifier”

Items To Buy

Again, the humidifiers below are probably the ones that you will need to buy!

The prices of these are low, medium and high. This will give you the best range. The lower prices will not have all the bells-and-whistles, and the higher price one's will.

Other Questions

Which humidifier is best for dry throats?

A dry throat is frustrating, mainly if it results from the limited circulation of air. The innovation of humidifiers made it possible for people to find solutions to air shortage problems.

There are a variety of warm and cool humidifiers that can suit your needs excellently. The space-saver evaporative humidifier is an excellent choice because of the output settings. Adjusting and customizing the settings keeps it operational for 24 hours. Increases humidity levels up to 65%. You can also check the indicators and adjust them appropriately.


Will a humidifier help with a dry mouth at night?

Humidifiers are excellent options when looking for an alternative to respiratory challenges. Whether you are battling allergies, asthma, colds, or dry throat humidifiers can help.

It emits vapor and increases moisture levels thus eliminating dry air. These devices come in different sizes and units. Including evaporators, ultrasonic humidifiers, central humidifiers, and steam vaporizers. You can research the best one from dealers.


How can I increase my saliva at night?

Battling with a dry mouth and throat can be frustrating. You can increase saliva by taking lots of water and other fluids like soups. A dehydrated body produces little saliva that causes discomfort. You can also carry a glass of water that you could take during the night. Avoid caffeinated and alcoholic drinks as they increase water loss.

Another tip is to close your mouth when asleep. Because an open mouth dries up any air that could moisten your throat. Learn to breathe through your nose and not the mouth. If you are having a cold, take lots of warm water and prescribed antibiotics to clears away sooner. You can also use a humidifier as it supplements the circulation of air in the room at night.

GENIANI Ultrasonic Cool Mist Humidifier - Best Air Humidifiers for...
  • NO NOISE - JUST FRESH AIR. Geniani humidifiers fills your room or office with clean and fresh air and makes your work and daily activities much more pleasant and efficient.
  • LARGE WATER TANK. Even a large room or office (on the high mist setting) will be full of fresh and clean air for 12 hours. If you have a smaller room (on the low setting), 3 liters is enough to produce air moisture up to 24 hours.
  • NIGHTLIGHT FOR BETTER SLEEP. Geniani cool mist humidifier helps you have a better relax at night with the soft light.
  • AUTOMATICALLY TURNS OFF. If during the night a humidifier happens to be out of the water, you can sleep tight - it automatically shuts down and turns on after you refill it.
  • 360-DEGREE MIST NOZZLE. It helps you decide in which direction you would like the moisturized air to be spreaded.
Miroco Cool Mist Humidifier, 26dB Ultra Quiet, 6L Ultrasonic...
  • Quiet Operation for Bedroom Use: Ultrasonic humidifiers are incredibly silent, reduces noise to 26dB (Patent No: US16/439, 758 pending); perfect for your baby and a disturbance-free sleep at night
  • 6L Tank Capacity & Mist Adjustable: Over 1.6 gallon of water lasts for 20-60 hour working time on a full tank; designed to humidify the air in rooms up to 20-40 m² / 215-430 ft²
  • 90mm Water Inlet: Allows you to refill and clean the machine with ease and convenience. There won’t be any spill when filling, and you can fit your hand into the tank to clean it thoroughly
  • Optional Night Light: The bedroom humidifier offers soothing glow for easy operation in the dark; press the light button to turn on/off the night light; hold the light button for 1.5s to turn on/off the tank light
  • Smart Personal Humidifier with Low Water Warning: The LED indicator will shine red and the ultrasonic air humidifier will stop misting to prevent the device from overheating
Cool & Warm Mist Tower Ultrasonic Humidifier | 1.5 Gallon Tank, 65...
  • WARM AND COOL MISTING OPTION: The Ultrasonic Tower Humidifier by HoMedics features a warm and cool misting option. Humidify your room with a cooling mist during hot summer months or a warming misting during cold winter months. View the LCD display to even see the temperature of the mist that is being output! Adjust the intensity of the mist with the easy-to-use control buttons. Its hefty 1.5 Gallon Tank has a runtime of up to 65 hours!
  • UNIQUE HIMIDIFYING FEATURES: HoMedics designed this humidifier to use ultrasonic high frequency technology to convert water into 1-5 million particles that are dispersed evenly into the air. If your room is too dry, program the humidistat to mist your space until the room reaches its set humidity level. Set its auto-off timer for 1, 2, 4 or 8 hours. It powers down when the water level gets too low. The mister even has an on/off nightlight making this a great humidifier for your toddler or baby
  • CLEAN-MIST TECHNOLOGY: This sleek 20 inch tower features an ultrasonic clean-mist technology. This anti-microbial technology helps prevent the growth of mold and mildew on the tanks surface making this a great mister for anyone with allergies. The demineralization cartridge included with your purchase reduces mineral build-up caused by hard water. You’ll no longer get the “white dust” settling on your appliances and furniture. Breathe in its clean, fresh cooling or warming mist
  • EASY TO USE AND CLEAN: TO USE: This mister is very user-friendly. First, unplug the unit and fill the large 1.5 gallon tank and power it on. Program your humidifier to your specifications with its large, easy-to-see buttons. TO CLEAN: Use a 50/50 mixture of vinegar and lukewarm water to clean the inside of the tank. Clean the water tank every 2-3 weeks depending on usage
  • WHAT’S INCLUDED WITH YOUR PURCHASE: One HoMedics Cool & Warm Mist Tower Ultrasonic Humidifier. One BONUS demineralization cartridge. One user’s manual. One year limited warranty


If you require more information, please check these references

The effect of the humidifier on sore throat and cough after thyroidectomy , article, "", retrieved on, Fri 16-October-2020

A heated humidifier reduces upper airway dryness during continuous positive airway pressure therapy , article, "", retrieved on, Fri 16-October-2020

Dry Mouth and Its Effects on the Oral Health of Elderly People , article, "", retrieved on, Fri 16-October-2020

After I had a bout of sinusitis, I spent every hour looking for something that would allow some kind of relief form the pain. This was when I found the humidifier. This came as a great surprise to me, as I assumed that these were just “toys”

After this blessed release from sinusitis, I decided to investigate these things further

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