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9 Best Humidifiers for Asthma of 2019 | Reviews & Buyer’s Guide

Waking up tired, irritable and feeling like you will never know what it is like to be well-rested again – the fact that it hurts to even take a very deep breath, cleaning your home becoming a task that is more tasking than it should be. These are all just some of the ways that asthma can affect your life. It is a lifelong condition that you have to live with. That being said, there are steps you can take that can effectively improve the quality of life for you.

You take your asthma medications to keep the asthma attacks at bay through your inhaler but what about the effects it has during the course of the day and what it does to you while you sleep? Getting a humidifier can help you reduce the effect of asthma in your everyday routine by a significant margin.

Humidifiers work to produce some extra moisture content within the air you breathe in your home – some of them offering the option to even purify the air while they are at it. This helps to make it easier for those who suffer from asthma and allows them to breathe a little easier.

Of course the search for the best humidifiers for asthma can be difficult for people who do not know much about them. Luckily for you, we have a very handy guide that can help you make the best possible decision. We have put together this guide which consists of reviews of some of the best humidifiers for asthma that you can get in 2019 along with a buying guide. By the time you are done reading, you will know exactly the humidifier you need to get to suit your needs.

Best Humidifiers for Asthma

The descriptions of each of these will help you determine which of them work for small spaces, for large spaces and for night time or day time use along with all of the necessary information you need to make a purchasing decision.

1.Innoo Tech 4.2L  – Best Humidifier for 500 Square Foot Space

The Innoo Tech is a very compact unit with a modest size of just 11 inches wide by 13 inches tall but it is an excellent humidifier for you to consider. It is able to release so much moisture in the air that it can easily raise the relative humidity in a room as large as 500 square feet without a problem.

Innoo Tech Ultrasonic Cool Table Lamp Humidifiers |...
  • 【Fashion style 】 abandon of the traditional humidifier...
  • 【Easy to operate 】 no worrying about the complicated...
  • 【Adjustable mist amount and whisper】quiet working sounds...
  • 【Long and large spraying duration and range】 2.0L big...
 

A weight of 2.6 pounds makes it a very lightweight unit that is easy to move around wherever you need it. We feel that it is one that works best on the bedside table. With just three clearly labeled touch buttons, the Innoo Tech model is very easy to operate and it comes with a 12 month limited warranty.

You can easily change the mist output from low to high using the control panel. You can even adjust whether you need cool mist from the humidifier or if you would prefer warm steam of 120 degrees Fahrenheit in just a matter of 10 minutes. With a low mist setting, this humidifier can operate for 28 hours without needing a refill.

The unit comes with a non-reusable air filter that keeps hard water dust from getting through to the air. This helps safeguard your health even more. If you want to choose an optional feature, there is also an aromatherapy box you can use. There are certain diffused essential oils like lavender oil, clove oil and eucalyptus oil that can alleviate your airway inflammation which you can use through the Innoo Tech Warm and Cool Mist Humidifier as well. Easily one of our top choices for the best humidifiers for asthma in 2019.

Pros

  • Delivers warm and cool mist depending on your choice
  • Comes with an aromatherapy option
  • Removable water tank for easy refills
Cons
  • Not the most silent humidifiers out there
  • Some users reported beeping for low water level even when full

2. Honeywell HWM705B Filter Free  – Best Low Maintenance Humidifier

This Honeywell model provides what can be the considered the most soothing mist that is warm around the clock. The 13 inch high by 11 inch wide humidifier is perfect for placement on the side table and end tables with more than enough power to humidify a  medium sized room.

Honeywell HWM705B Filter-Free Warm Moisture Humidifier,...
  • WARM MIST HUMIDIFIER: This ultra quiet filter-free...
  • WARM MOISTURE FOR HOME OR OFFICE: This top fill humidifier...
  • HONEYWELL HUMIDIFIERS: Humidity levels in your home between...
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A little heavier than the Innoo Tech model, the Honeywell HWM705B weighs in at just 4 pounds and comes with a warranty period of three years. The dial mist control on this humidifier allows you to keep the humidifier very simple to use. Just turn the knob clockwise and you can choose between different mist levels.

The lowest setting sees the appliance produce 24 hours worth of mist with a full tank. There is also a medicine cup near the nozzle that allows you to place cough-calming camphor, menthol or other liquid medicine that can add to the flow of the mist it creates.

The humidifier by Honeywell also comes with an indicator light which lets you know you need to refill it. Since there’s no air filter or water filter, you will not need to worry a lot about maintenance.

Pros

  • Low Maintenance
  • Adjustable mist level settings
  • Indicator light for refill
Cons
  • Some customers reported leakages
  • Some customers found it clogging up easily

3. BONECO Ultrasonic Humidifier U650 – Best Hi-Tech Humidifier

While the Boneco model is almost twice the weight of the other two models we have reviewed so far, it is still the same compact size. This humidifier uses more advanced technology with a touch button based interface and a dimming digital display.

BONECO Warm or Cool Mist Ultrasonic Humidifier U650
  • High Output: Up to 3.5 gallons/24 hours for rooms up to 650...
  • Auto Mode for fully automated operation
  • Surface touch buttons for sleek design
  • Digital display with dimmer and programmable hygrostat
 

Straight from the panel on the Boneco Warm or Cool Mist humidifier, you get access to a lot of different features like the 8 hour timer. The mist from this humidifier can easily raise the relative humidity of a room 650 square feet from its dual outlet nozzle. The unit also comes with a pretty substantial 3 year warranty.

The humidifier is able to provide half a day’s worth from the 1.5 gallon tank. You can choose three different mist speeds and decide whether you want cool mist or warm mist. This is one of the best humidifiers for asthma since it contains a hygrostat as well. This allows the unit to automatically adjust the relative humidity as per the need of the room it is in.

You also have the ability to set the relative humidity of the room it is in between he range of 30 to 80 percent. Boneco has also included a demineralization cartridge with the humidifier that will eliminate any buildup of limescale and an activated carbon filter that destroys VOCs which are known to trigger asthma attacks.

Pros

  • Includes EZCal powder to help clean up
  • Automatically adjusts humidity level of room
  • Adjustable mist flow speed
Cons
  • Heavier than other models
  • Costlier model to consider

4. Dyson 303515-01 AM10 Humidifier – Best Mist Releasing Ring Humidifier

Dyson is a company well known for its brilliant design when it comes to household appliances that come in very handy. The Dyson 303515-01 AM10 Humidifier is no exception when it comes to upholding the highest standards by the company.

 

The Dyson humidifier is one of the best humidifiers for asthma and it looks like one very well designed appliance. This elongated oval mist-releasing blue colored ring sits atop a steel gray colored body that has a cylindrical shape. The body is surrounded by a water tank.

The appliance stands at a 22,8 inch tall and weighs a substantial 7.5 pounds. A little on the heavy and tall side, this is a unit best used with a floor placement. The humidifier is a pretty capable appliance that comes with a remote so you can control it from a distance and it also has a 2 year limited warranty.

It can deliver 10 different levels of mist along a long distance. You can enjoy a non-stop flow of mist from the unit for 18 hours on the lowest setting. You can even set a sleep timer that will power off the humidifier after 15 minutes to 9 hours. There is an integrated UV-C light which destroys 99.99 percent of any bacteria within the water before it is distributed in the form of mist throughout the room.

The innovative an effective Dyson AM10 can automatically adjust the relative humidity, it can regulate itself to maintain your manually chosen setting for the room when you put it on automatic mode.

Pros

  • Automatic relative humidity adjustment
  • Remote control for easy operation
  • UV-C light that kills 99.99 percent of germs in water before mist distribution
Cons
  • Some customers find it too large
  • relatively quite expensive unit

5. Honeywell HCM350B Germ Free Cool Mist Humidifier – Best Floor Placement Humidifier

Honeywell is a very good manufacturer when it comes to the best humidifiers for asthma. While we have already discussed an end table sized model by the company, Honeywell also has an amazing floor placement unit that this list could not be complete without. The Honeywell HCM350B is easily our favorite among the floor placement humidifiers.

Honeywell HCM350B Germ Free Cool Mist Humidifier Black
  • COOL MIST HUMIDIFIER: Add cool moisture to dry air with this...
  • FILTERED COOL MOISTURE: Evaporative Technology blows...
  • HONEYWELL HUMIDIFIERS: Humidity levels in your home between...
  • HUMIDIFIERS FOR BABIES, CHILDREN, ADULTS: Humidifiers...
 

This 9 pound unit uses an evaporative process to deliver mist from the huge outlet on the top of the appliance. An excellent warranty coverage of 3 years gives you a little extra peace of mind with the Honeywell model.

The dial knob on this humidifier allows you to adjust the mist flow speed by regulating the fan and you can select three different speed settings based on your needs. If you go for the highest speed, the 2 gallons per day can provide you a steady flow of high mist for a day.

At the same time, the lowest setting can last you the full tank for a full 24 hours without a refill. The Honeywell floor placement humidifier uses two ways to keep the water and the mist free of germs: the UV-C light and the wick filter covered with antimicrobial material that kills off 99.99 percent of mold and bacteria.

Pros

  • Has an impressive 10,000 feet range
  • Adjustable volume settings
  • Has 52 different sound options
Cons
  • Some customers reported the IP55 rating compromised over time
  • Some customers found a few sounds annoying

6. Bizond Ultrasonic Humidifier – Best Quiet Humidifier

One of the quietest humidifiers that we have on this list, the Bizond Ultrasonic Humidifier. This is absolutely perfect for anybody who has a lot of trouble sleeping because of their asthma problem and they want a little extra humidity while they sleep soundly at night. Whether you are an adult trying to keep your nasal passage warm and humid or you have a baby suffering from a bit of colic, this will work out very well for you.

 

The air purification system within the humidifier means that this unit does not just increase the relative humidity of the room, it also cleans the air while it is at it. Each minute, it releases 300 million cleansing ions into the air which helps eliminate the bacteria in your room. A truly versatile device, this is the perfect humidifier for people with asthma or suffering from allergies.

The device has very low energy consumption so you can keep it running 24 hours a day without worrying about the utility bill spiking up. It also operates efficiently so you do not need to worry about a refill for 24 hours of constant use.

Most users found that this humidifier requires very low maintenance. This allows you to enjoy the constant mist from the humidifier throughout the night without having to wake up because it stopped working.

Pros

  • Has a very low energy consumption
  • Low maintenance unit
  • Safe and practical
Cons
  • A little bulky to keep on the side table
  • Some customers found their units leaking

7. Everlasting Comfort Ultrasonic Cool Mist Humidifier – Best No Filter Humidifier

While we agree that having a tiny humidifier might be good enough for a lot of people, some people might need extra bit of power to send the mist all over the room. The Everlasting Comfort Ultrasonic Cool Mist Humidifier is one of the most powerful humidifiers on this list to fulfill the latter need.

Everlasting Comfort Ultrasonic Cool Mist Humidifier (6L) -...
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This is a heavy duty humidifier that can increase the relative humidity of a large room, an entire apartment or even a sizable office space that can benefit from humid air. The 6 liter water tank can last 50 straight hours and that makes it a very hassle-free unit for you to have.

The cool mist that the unit distributes in the air can reduce the bacteria floating around in the air as well. For people suffering from asthma, the cool mist will also be very soothing for your throat and the moisture will soften up the airways to allow more opportunity for your lungs to get oxygen-rich air.

You can even use a whole range of essential oils with the Everlasting Comfort for aromatherapy. This is more than just a bonus feature considering the fact that it will not just reduce your asthma attacks but also add a bit of spice to the air to calm your nerves. One of the best things about this humidifier is the fact that you do not have to bother with replacing any filters. The design of it allows the humidifier to clean the air without any replaceable filters to hassle with.

Pros
  • No filter replacements needed
  • Can be used with essential oils
  • Less refills with large reservoir
Cons
  • Might be too large for average rooms
  • No grabbing handles on water reservoir

8. InvisiPure Alta Cool Mist Humidifier – Best Cool Mist Humidifier for Asthma

It is not necessary that all humidifiers need to have a very sterile look that looks like it is definitely made for a medicinal purpose. The InvisiPure Alta Cool Mist Humidifier shows us that a humidifier can look very ornamental and fit into the décor of your home while providing a very helpful flow of mist that helps you decrease the effects of asthma.

InvisiPure Alta Cool Mist Humidifier Aromatherapy Diffuser,...
  • HEALTH BENEFITS. Uses cool mist ultrasonic technology....
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Emitting a calm and cooling mist, the humidifier adds a pretty good aesthetic value to the décor. The rich woody color tones and a large LED light band that shifts color makes it easily one of the most beautiful humidifiers we have on the guide. The seven LED light colors that you can cycle through add a bit of beauty to accent your living room.

The ultrasonic technology in the InvisiPure humidifier releases mist for up to 7 hours on the lowest setting. That is pretty substantial for the size of this unit and you have just the right amount of water in the reservoir to help you sleep better at night. Do not worry about keeping it on for too long. When the water level finishes, the humidifier automatically shuts down.

You also have the option of using your favorite essential oils for some aromatherapy with this humidifier. So you can enjoy the calming effects of lavender while getting the best humidity levels to help you sleep better at night. What more could you ask for?


Pros

  • Can operate with essential oils
  • Cool mist helps resolve breathing issues
  • Has beautiful LED light settings
Cons
  • Water reservoir is relatively small
  • Not suitable for humidifying larger rooms

9. Aennon Cool Mist Humidifier – Best Humidifier for Babies with Asthma

When it comes to investing in humidifiers, it is never too early. If you have a young child in the family who suffers from asthma, you should definitely arrange an appliance that they can benefit from and enjoy a better quality of life despite this lifelong health condition. The Aennon Cool Mist Humidifier is our top pick for younger children with breathing issues.

Sale
Aennon Cool Mist Humidifier, 2.8L Ultrasonic Humidifiers for...
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The humidifier works very well for babies and toddlers since it does not just provide cool most. It also has seven different LED colors that makes it a very calming night light for your child as well. You can choose it to stay on one color throughout or to cycle through different colors.

There are a lot of additional safety features which make this an especially good humidifier for babies and toddlers. The auto shutoff feature means that it will turn off when the water supply runs out. You will not need to worry about manually turning it off in the middle of the night.

The humidifier is also a pretty sturdy unit which you will not need to be worried about tipping over or falling off easily from the table or shelf. The Aennon Cool Mist Humidifier is also a very quiet appliance that never makes disruptive sounds. Your toddler can sleep soundly throughout the night while it works to make their sleep a lot better.

Another amazing feature that this humidifier boasts is the fact that it has the ability to operate with essential oils. Now, parents with newborns know how difficult it is to get a baby to calm down and go to sleep. Using essential oils has proven itself time and time again to be effective in helping your little baby drift off to sleep for a more peaceful night in bed.

Pros

  • Whisper quiet operation
  • Seven different LED light settings
  • Nice shape and design
Cons
  • Very small water reservoir
  • Some customers found it difficult to keep clean

Humidifiers for Asthma Buying Guide

Now that you have the reviews of the best humidifiers for asthma to consider, we will provide you information that will help you better understand the condition, what causes it and the features you need to look for when buying a humidifier to help you with asthma.

What Are Signs and Symptoms of Asthma?

Asthma is not a condition you are necessarily born with. Sometimes, the health condition starts to affect you later on in your life. Asthma can come around in the form of gradual signs before any full blown asthma attack starts. There are a few pre asthma attack symptoms which include an unusual level of exhaustion after moderate amount of exercise, issues sleeping at night and night time coughing.

If you are in the midst of an asthma attack, you can also experience coughing. That coughing might be uncontrollable and you can also feel shortness of breath, chest tightness, anxiety, wheezing, blue tinted fingernails and lips along with sped up breathing. All of this happens because of a highly reduced amount of oxygen in the blood caused by asthma attacks.

How Are Asthma Attacks Triggered?

Whenever something like a substance or an event triggers an asthma attack, the airway sees the muscles around it tighten up and that causes what is known as bronchospasms. The tightening muscles cause the airway to become inflamed, the mucus production increases and both of these factors combine to make it more difficult for you to breathe. Three are a lot of things that can trigger an asthma attack in a person and they can differ drastically from one person to the next.

There are some common denominators that are considered to be triggers for asthma attacks. This includes:

  • Pollen
  • Mold
  • Dust dander
  • Smoke
  • Shellfish
  • Peanuts
  • Strong perfume

Other factors like exercise, dry air and even the flu can also trigger someone’s asthma and cause a full blown attack.

How Does Dry Air Occur?

For people living in regions that experience extremely cold weather during the winter months, dry air is a common problem. Winter temperatures creates dry indoor air when the heater is running and that causes problems for people suffering from asthma. The warmer air inside your house expands and that impacts the ability of the air to hold water. This results in a reduction of the relative humidity.

What Is Relative Humidity?

The relative humidity is the rate of moisture the air can hold at a particular temperature compared to the maximum capacity of air at the same temperature. In simpler words, it is the moisture content of the air. This is the reason why the relative humidity content is read in the form of percentages.

If you consider that the relative humidity in a particular area is 30 percent, it means that the air contains only 30 percent of the total water vapor that the air has the ability to hold. There are humidifier models that come with hygrometers. These appliances are capable of measuring the air’s moisture content and other units have humidistats.

The humidistat takes the moisture reading ability of hygrometers a step further. It does not just record the relative humidity, it also helps the appliance control it by making adjustments to the humidifier’s mist flow.

How Can a Humidifier Help Asthma?

While humidifiers are probably the best possible means to keep the asthma attacks at bay, you should never mistake them as being a means to be able to cure it. Asthma is a lifelong condition which you have to live with. Humidifiers are able to keep you safe from most of the conceivable triggers of asthma.

Depending on the type of humidifier you are using, the appliance can create cool or warm mist (or both) from a supply of water that you add to its water reservoir. The water is distributed in the form of mist through the nozzle and into the air. The square footage of air humidifiers basically represents how well the moisture delivery system can operate in a particular area.

Different Types of Humidifiers

While humidifiers all have the same basic function of increasing the moisture content of the air, there are actually various different technologies that can work towards the same task. There are several humidification options that you can choose from depending on the manufacturer and model you decide to go for. The end result however, is always to increase the relative humidity of the air.

Evaporator Humidifier

An evaporator humidifier uses a wick filter that is made from cloth or foam. The wick retains moisture while an internal fan produces air. As the air blow across the wick, it encourages the water particles to evaporate faster. As the air evaporates naturally, it releases cool mist into the air. There is no need for humidistat for evaporative humidifiers because the natural evaporation process allows it to self regulate.

Ultrasonic Humidifier

Instead of using a wick and a fan, the ultrasonic humidifiers contain a metallic plate. This type of humidifier generates sound waves at a very high frequency that causes the metal plates to vibrate very fast. The vibration of the plates moves the water very fast and the movement causes water droplets to form. The nozzle on the humidifier then distributes these water droplets into the air in the form of cooling and humidifying mist.

Impeller Humidifier

Impeller humidifiers also use a similar mechanism to evaporator humidifiers. The only difference is, their air circulating internal fan does not create airflow through a wick – it uses a diffuser to make the water droplets. There is a revolving disc on the exterior of the humidifier that breaks up the cold droplets formed so they can easily flow through the air and humidify it to desirable levels.

Warm-Mist Humidifier

Warm mist humidifiers can often be mistaken to be steam vaporizers. The warm mist humidifiers operate quite differently than the other types of humidifiers discussed above. They do not generate cool mist.

Within the humidifier, there is a heating element that heats up the water until it boils. The steam let off from the boiling water is allowed to slightly cool down until it turns into a mist form. The warm mist is then distributed into the air so that you can breathe in warm mist instead of hot steam. This makes it a lot more relaxing and soothing for your airways than steam vaporizers.

Steam vaporizers just release the hot steam without giving it the time to cool down to a temperature more comfortable for you.

Are Warm-Mist or Cool-Mist Humidifiers Better for Asthma?

Some people might wonder whether the cold mist or the warm mist is more helpful when it comes to keeping the asthma under control. If you also wonder about this, you should know that the ultimate goal with humidifiers is to increase the relative humidity. That is what helps to keep the symptoms of asthma under control. The humidity breaks up the mucus which contributes to their inability to breathe as well as they should.

There are asthma sufferers who actually find warm mist suffocating to their airways – this is not the case with every person who suffers from the condition. The decision to use either of the two mists is ultimately a personal preference more than anything else.

The warm mist often feels more relaxing to breathe in during the cooler months. Either way, it is important that you maintain your humidifier and keep the humidity levels regulated. Too much humidity can be bad since it encourages the growth of dust mites which can trigger asthma symptoms.

This means that it is more important to go for a humidifier that can regulate the relative humidity rather than being concerned about whether the mist is hot or cold. Keeping the humidity within the range of 40 to 50 percent is ideal. If you have a humidifier with a humidistat or a hygrometer, you can better regulate the levels.

Why Is It Important to Keep The Humidifier Clean?

People who suffer from asthma should be very particular about keeping their humidifiers clean. Bacteria and virus exposure can cause illnesses that make their symptoms worse. Even if there is a presence of mold, the asthma attacks can become very bad.

The reason why keeping a humidifier is clean is that dirty humidifiers can become breeding grounds for bacteria, viruses and molds. If you keep it unchecked, the humidifier might end up distributing mist riddled with microbes that can cause various illnesses.

What Is the Proper Way to Clean a Humidifier?

The specific care and maintenance instructions can differ from model to model when it comes to humidifiers. There are a few maintenance tips that can apply to humidifiers in general. Asthma sufferers need to keep their humidifiers need to keep their humidifiers clean in order to maintain a good health. Follow the instructions for cleaning and maintaining your humidifier based on what the manufacturer recommends so you can get the best out of this useful appliance.

Change the Water

If you do not use your humidifier to the point where the water finishes entirely, you should make it a point to change the water from time to time. Leaving old water in there can lead to the incubation of bacteria. Even humidifiers with large water capacity need to have their water changed every day. When you change the water, you stop the bacteria from growing before they have a chance.

Use the Right Water

While people who do not have asthma do not need to worry about this, those who do need to avoid the use of tap water in their humidifiers. Always use distilled or purified water for your humidifier.

Purified or distilled water contains very low levels of minerals. If you use water that contains these minerals, the humidifier will distribute them into the air and that can cause issues for asthma sufferers.

Wash the Tank

Always make it a point to wash the tank whenever you can. After a lot of use, hard water deposits can easily form on the inside walls of the water reservoir. Hard water deposits are also contaminants for the water supply. In order to avoid these contaminants from becoming a part of the water, wash the reservoir with water and soap from time to time. Use a mild soap to clean the reservoir and allow it to dry out completely before you refill it with water.

There are some humidifiers that have small water tanks which you cannot fit your hand inside of. For those, you can use a diluted vinegar and water solution for around 15 minutes, empty the tank, rinse it, let it dry and then refill it for use.

Maintaining the Filter

There are humidifier models that come with filters for the water and air. You need to keep the filter clean so that the humidifier can do a better job at providing you calm, clean and soothing mist. If you have a model that has reusable filters, you should wash the filters from time to time as per the instructions provided by the manufacturer. If the filter cannot be reused, you should keep replacement filters on-hand when the current filter starts to get dirty.

Typically, humidifiers with non-reusable filters come with a timeframe when it is recommended that you should replace the filters. Never run a humidifier with dirty filters since the dirt can contaminate the mist they distribute.

Features To Consider While Choosing A Humidifier

Now that you have a better understanding of how humidifiers work, we are going to come to the part of the humidifier buying guide that will tell you about all the features you should look out for when you are buying one for yourself.

As you might have noticed, all of the humidifiers we discussed are slightly or drastically different from each other in how they work. Looking at this part of the guide will help you better understand the features so you can make the best possible decision based on your needs.

Mist type

Humidifiers produce either cold mist or warm mist. There are plenty of models that offer you both options depending on which one you need at a particular time. Cold mist is generally very nice and refreshing, especially in the hot summer months. At the same time, warm mist is equally comforting and soothing during the cold winter months.

Humidifiers are used quite often in colder months. This is because cold weather dries up the air indoors and you need to bring up the relative humidity inside the house. The warmer temperature also provides a more comfortable setting at home.

You do need to keep in mind that if you have a warm mist humidifier and you are using it in a large space, the chances are that the mist will cool down to room temperature by the time it reaches you. Warm mist humidifiers work best in smaller spaces.

Water tank capacity

The water tank capacity in a humidifier is a very important aspect to consider. The larger the water tank is, the larger the humidifier. If you have a small space like a small room or a small apartment, you would be better off using a humidifier with a small tank. If you need a humidifier for a larger space or an office, you should choose a humidifier that has a larger capacity for water.

The tank capacity of the humidifier also has an effect on how regularly you will need to refill the humidifier. The caveat with smaller tank capacity is that you will find yourself refilling the tank more often compared to a humidifier with greater capacity. If you are only going to use the humidifier for a few hours, a smaller tank will be ideal for you.

That being said, if you will have the humidifier running around the clock, stick to finding a humidifier with a very large capacity reservoir. This will mean you do not need to bother with refilling the humidifier’s water reservoir so often. After all, who wants to wake up in the middle of the night to refill the water?

Mist time

The mist time talks about how many hours the humidifier is able to produce and distribute mist until the water supply runs out. There are humidifiers with a few settings that allow you to control how much or how little mist it produces. This means that if there is a humidifier which is marketed as being able to provide a mist time of 24 hours, it is probably talking about the mist time it can give at the lowest settings. If you set the humidifier on high mist flow, it might not last 12 hours before the water runs out.

Coverage area

When it comes to humidifiers, the coverage area refers to the square footage of a room that the humidifier can effectively be able to work in to bring the relative humidity level up. There are a few humidifiers that are made for areas lower than 200 square feet. Ideal for rooms and small apartments, these humidifiers will not be able to bring up the relative humidity up in a larger space.

On the other hand, there are humidifiers that can cater to the needs of much larger areas that can work well for large indoor spaces and even offices. Using those in a small room or apartment will be a waste of space and resources.

Noise level

Noise is a particular part of the decision making process. Someone who needs to be able to sleep better through the help of a humidifier will definitely need a unit that does not create a lot of noise. There are models out there that produce little more than a gentle hum of a sound than anything else.

There are others that will create a significant amount of noise which might not be suitable for someone sleeping. They are more befitting for use in office spaces or for people who have no trouble sleeping with slight disturbances.

Choosing the noise level of a humidifier ultimately comes down to personal preference.

Essential oils diffuser

The proven health benefits of essential oils means that they are quite popular among people right now. Essential oils do not just smell pleasant, they can help instill a calmer and relaxed feeling in people – especially people coming back home after a long and exhausting day at work. There are certain humidifier models that can provide you the chance to benefit from aromatherapy through essential oils.

For those interested, you should choose a humidifier that also doubles as a diffuser. This way you do not have to spend money separately on a humidifier and a diffuser – one appliance can take care of both tasks efficiently.

Dimensions

The dimensions of a humidifier matters a lot depending on the space you need it for. If you need a humidifier for a smaller space, a tiny humidifier will be a more reasonable option. Smaller humidifiers take up a lot less space and at the same time, they have smaller water tanks. This means you will find yourself refilling them more often.

Larger humidifiers definitely take up more space than their small counterparts. The mist time that they can give before refills are required will be much longer in comparison. Most of the humidifiers in the guide are medium sized which are suitable to keep on the bedside table.

One thing you should note: if you have a particular area of your home in mind where you want to keep a humidifier, it is best to take the measurements of that area and compare it to the dimensions of the model you are considering.

Extra features

These are all some of the most basic features that you need to look out for when you are choosing a humidifier. The best humidifiers for asthma have these features as well as plenty of extra features which set them apart from the others. One thing you should definitely look for with any model you are considering is the warranty period the manufacturer offers.

A lot of the units out there come with a one-year warranty but there are models that offer 3 year warranty periods as well. Be sure to check what the reviews for their customer service are like so you have an idea of what to expect in case you face any issues with the humidifier you are considering.

Humidifiers have the primary job of increasing the humidity level of the air indoors. The best humidifiers for asthma also need to perform the task of purifying the air that you breathe to better safeguard you from asthma triggers. If you have a humidifier that has non-reusable filters, a good extra feature would be additional filters that you can use to replace the current one inside the unit. You should also make it a point to find out what kind of filters are needed in the unit and how convenient and costly it is to purchase additional replacements for future use.

Most of the humidifiers you find out there use power from the main electricity outlets in your home. There are however, some battery operated humidifiers out there as well. If you are getting a battery powered humidifier, note whether or not it comes with the batteries you will need to power it so that you already have an idea of whether or not you need to buy them separately.

Last but not the very least, the lights. It is a completely extra feature which is not essential to the “humidifying” function of the appliance but it sure does make a difference in the overall experience – particularly with humidifiers that double as diffusers. Humidifiers with calming LED lights can be displayed in the center of your room as an integral part of the interior decoration. They can also be used as a night light for anxious toddlers who have trouble sleeping at night.

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