Shopping for PureGuardian Humidifiers? You’ve come to the right place.
If you are looking for a humidifier, you already know the perils of dry air and its rather unpleasant effects on your eyes, throat, and skin.
A humidifier not only alleviates these problems but also helps with cold symptoms and seasonal allergies.
While many manufacturers claim their products offer all these services and features, a name that has surfaced as a continuously trustworthy and consistent brand for its products’ outstanding quality and peak performance is Guardian Technologies.
The company’s line of PureGuardian ultrasonic humidifiers aims to provide a better and healthier environment.
Other products in the portfolio include air purifiers, sanitizers, oil diffusers, and filters.
Our Top 3 Picks
- Has a 2-gallon water capacity
- Equipped with SmartMist sensor that continuously measures and monitors the humidity level
- SilverClean Protection ensures that no mold or mildew accumulates at the surface of the water tank
- 0.5-gallon tank allows a run time of 30-hours, making it ideal for small-sized rooms
- Silver Clean™ Protection does a great job of curbing the growth of mildew and mold on the surface of the water tank
- Ultrasonic Technology quietly diffuses a fine mist to tackle dry air in the room
- SilverClean™ Technology combats the development of slimy mold and mildew on the water tank surface
- Extension wands disperse a uniform mist throughout the entire space
- Includes an aromatherapy tray to add your favorite essential oils
What's In This Buying Guide
Table of Contents
In this article, we review some of the best Pureguardian ultrasonic humidifiers and list their pros and cons.
We discuss why PureGuardian humidifiers are better than others. We also go over the factors you need to look out for when choosing a PureGuardian humidifier.
Hopefully, our guide can help you find the ideal humidifier.
Best PureGuardian Humidifiers
- 1. Best Overall: PureGuardian H8000B
- 2. Best for Small Spaces: PureGuardian H940AR
- 3. Large-Capacity Humidifier: PureGuardian H5175W
- 4. Space-Saving Design: RH3200BCA Ultrasonic Cool Mist Humidifier
- 5. Best for Nurseries: PureGuardian H910BL
Product
PureGuardian H8000BAward
Best OverallTank Capacity
2 gallonsRun Time
120 hoursSmart Mist Sensor
YesCoverage Area
500 sq. ft.Dual Mist Option
YesWarranty
3-year limited warranty
Product
PureGuardian H940ARAward
Best for Small SpaceTank Capacity
0.5 gallonRun Time
30 hoursSmart Mist Sensor
NoCoverage Area
350 sq. Ft.Dual Mist Option
NoWarranty
1 year limited warranty
Product
PureGuardian H5175WAward
Large-Capacity HumidifierTank Capacity
2 gallonsRun Time
120 hoursSmart Mist Sensor
NoCoverage Area
560 sq. ft.Dual Mist Option
NoWarranty
3-year limited warranty
Product
RH3200BCA Ultrasonic Cool Mist HumidifierAward
Space-Saving DesignTank Capacity
1.5 gallonsRun Time
100 hoursSmart Mist Sensor
NoCoverage Area
440 sq. ft.Dual Mist Option
NoWarranty
90-day limited warranty
Product
PureGuardian H910BLAward
Best for NurseriesTank Capacity
0.21 gallonsRun Time
14 hoursSmart Mist Sensor
NoCoverage Area
210 sq. ft.Dual Mist Option
NoWarranty
1-year limited warranty
The PureGuardian H8000B is an ideal choice for a large space of up to 500 square feet. It features a 2-gallon tank and allows you to switch between cool and warm mist. It also makes use of extension wands to ensure uniform mist throughout the room.
PROS
- Maintains a steady humidity level in the room
- Has a run time of 120 hours
- You can switch the settings according to your requirements and weather conditions
- Can be set up in your bedroom, your kids’ bedroom, or your office
- Has a touch-sensitive digital display
- Doesn’t make much noise while operating
- Has an auto mode
CONS
- Can create white dust issues
- One of the more expensive models
Features
- Has a 2-gallon water capacity
- Equipped with SmartMist sensor that continuously measures and monitors the humidity level
- SilverClean Protection ensures that no mold or mildew accumulates at the surface of the water tank
- Extension wands ensure that even mist is dispersed across the room
- No evaporating pads, filters, or wicks involved
- You can choose between warm and cool mist
- Equally effective in large and small rooms
- Equipped with a low water indicator
- Timer allows you to customize the preferred run time for up to 12 hours
- Has a night light
Our Review
An effective choice for large working or living spaces, the PureGuardian H8000B boasts a 2-Gallon water capacity that allows for a run time of up to 120 hours.
This ultrasonic humidifier provides 2 mist options – cool and warm mist. And the extended reach wand disperses even mist throughout the room.
You can also set a humidity level that suits your needs. The smart mist sensor will then monitor the humidity and automatically adjust the output to maintain the level you set. The timer is also a convenient addition.
There’s a digital display interface on the front that you can use with the touch of your fingers.
The H8000B also has 3 fan speed settings and optional night light.
The PureGuardian H940AR is a tabletop unit, and like most ultrasonic humidifiers, it doesn’t create any loud noise. It functions quietly and is ideal for bedrooms or offices up to 350 sq. ft.
Its ultrasonic technology creates a stream of mist almost silently that allows comfort and combats dry air. You can further improve the room’s atmosphere by adding a few drops of your favorite essential oil to the aroma tray.
PROS
- Notifies when it is time to refill the tank
- Ultra-quiet operation
- Provides relief from all impacts of dry air
- Very easy to use
- Can also be used for aromatherapy
CONS
- On the high settings, the mist falls down, making the surface it sits on a little wet
- May produce some white dust
Features
- 0.5-gallon tank allows a run time of 30-hours, making it ideal for small-sized rooms
- Silver Clean™ Protection does a great job of curbing the growth of mildew and mold on the surface of the water tank
- Ultrasonic Technology quietly diffuses a fine mist to tackle dry air in the room
- Aromatherapy tray helps create a relaxing environment
- 2 mist settings and a directional mist nozzle
- Slender desktop design with an optional night light
- Refill light indicator tells you when it needs refilling
- Auto shut-off feature keeps the device safe from damage
- No evaporating filters involved
Our Review
This 30-hour ultrasonic cool mist humidifier is the solution to all your dry air problems. Given its 0.5-gallon, it is ideal for small rooms.
The PureGuardian H940AR features Silver CleanTM Protection that prevents the surface of your tank from being used as a breeding ground for mold or mildew – a problem common in humidifiers.
With its ultrasonic technology, the H940AR diffuses a soothing cool mist into the surrounding air. This, along with its ultra-quiet functioning, creates a perfect environment for work or sleep.
When the water level drops below a certain threshold, the indicator light turns on automatically, notifying you that the tank needs refilling. It has a night light, too, so you can even keep it in your children’s bedroom.
Another great feature of the H940AR is its aromatherapy tray. Simply pour in your favorite essential oils, and the humidifier will create a calming and relaxing environment in the room.
All in all, this PureGuardian humidifier is best for people with allergies and those who tend to catch a cold more easily or suffer from the perils of dry skin, nose, and eyes.
The PureGuardian H5175W has a 2-gallon capacity and is suitable for large spaces of up to 560 square feet. It creates quite a comfortable environment as it has an essential oil pad and an aromatherapy tray. It also doesn’t demand a lot of maintenance.
PROS
- Keeps the tank surface clean with its smart construction
- Although designed for large rooms, you can use it in smaller ones too
- Easy cleaning and maintenance
- Easy to use and operate
- Has a nightlight with an on/off switch and an indicator light
- 3-speed mist settings
CONS
- Doesn’t feature the smart mist sensor
- Only produces cool mist
Features
- SilverClean™ Technology combats the development of slimy mold and mildew on the water tank surface
- Extension wands disperse a uniform mist throughout the entire space
- Includes an aromatherapy tray to add your favorite essential oils
- Variable spray allows you to use it in both large and small rooms
- Run-time of 120 hours
- Low water indicator lights up to remind you to refill the tank
- Low water indicator lights up to remind you to refill the tank
Our Review
The PureGuardian H5175W features a 2-gallon tank and is ideal for combatting dry air problems in big rooms and spaces.
The H5175W uses extension wands to disperse and diffuse an even mist in the room, thus maintaining a steady humidity level.
As is standard in all Pureguardian ultrasonic humidifiers, this one is also treated with Silver Clean Technology to prevent mold or mildew growth on the water tank surface.
This PureGuardian humidifier also does an impeccable job of cutting down any additional costs after purchasing the device. It doesn’t require any filters, wicks, or evaporating pads.
Additional features include an optional nightlight and an indicator light that turns on when the water level in it is critically low so that you can refill it in time.
The Ultrasonic RH3200BCA has a towering design with a height of 23.3 inches. It takes minimal space and looks rather stylish standing in the corner of the room.
It has 3-speed settings and a rotating nozzle that evenly distributes mist in an area of 440 sq. ft. It also has an auto shut-off feature.
PROS
- Perfect for small and medium-sized rooms
- Emits mist in many directions
- Very quiet
- The system protects itself from damage
- Doesn’t use a lot of space to be set up
CONS
- Isn’t as technologically advanced as some other options
- Only produces cool mist
Features
- Ultrasonic Technology gives fast relief from dry air
- Soothing cool mist option
- Silver Clean technology prevents the buildup of mold and mildew
- 100-hour run time
- Large 1.5-gallon tank
- Variable 3-speed mist control
- An on/off night light and a timer
- Comes with a rotating nozzle
- Low water indicator lights up when it’s time to refill the tank
- Automatic shut-off when the unit is empty
- 90-day limited warranty
- No evaporating filters involved
Our Review
The PureGuardian Ultrasonic RH3200BCA is primarily designed for small to medium-sized rooms of up to 440 sq. ft.
Like other PureGuardian humidifiers, the inside of the water tank of the RH3200BCA is coated with silver. This inhibits unwanted growth of mold, mildew, or any bacteria that may lead to contamination.
The unit is divided into two sections at the top. One side features the cool mist nozzle outlet that allows multi-dimensional cool mist dispersion.
The other side has buttons that work with a slight touch of the finger. This allows easy and convenient control of the unit. It also comes with a 12-hour timer and 3-speed settings.
The PureGuardian Ultrasonic RH3200BCA humidifier is also designed with a few handy features to protect the unit. For instance, the blinking indicator lights up when the water level is critically low. Similarly, when it completely runs out of water, the purifier turns off automatically.
The RH3200BCA is also very easy to use and maintain.
Need a humidifier for your kids’ room? Check out the PureGuardian H910BL. It is ultra-quiet so that your baby doesn’t wake up because of the noise and is easy to use and maintain.
The H910BL comes with adjustable mist levels and a flexible mist nozzle that allows you to further control how it spreads mist. With a 0.21-gallon tank, it is best suited for rooms up to 210 sq. ft.
PROS
- Ultra-quiet operation
- Easy to use, clean, and maintain
- Optimizable mist settings
- Compact design
CONS
- No aroma tray
- Doesn’t have an extension wand
Features
- 0.21-gallon tank provides a run time of up to 14 hours on the lowest setting
- Adjustable mist nozzle
- Silver Clean Protection ensures that mold and mildew do not grow on the water tank’s surface
- Ultrasonic technology tackles dry air by dispersing a fine mist within the range of the humidifier
- Optimizable low and high cool mist settings
- Sleek and attractive design; ideal for your desktop or nursery
- Features an optional night light and an indicator light to inform you when the tank needs a refill
- Shuts off automatically to save power
Our Review
The 10-hour Ultrasonic Cool Mist Humidifier can cater to all your dry air problems at home. Like other PureGuardian ultrasonic humidifiers, the H910BL features Silver Clean Protection.
And since it is an ultrasonic humidifier, it disperses soothing cool mist into the air while being ultra-quiet.
The PureGuardian H901BL does not have traditional humidifier components such as evaporating pads, filters, and wicks that you need to regularly clean or replace.
Plus, its compact size makes it great for tabletops. The design is also very sleek and stylish.
And like other PureGuardian humidifiers, the H910BL also comes with a low water indicator and an optional nightlight, making it a good choice for the kids’ room.
PureGuardian Humidifiers Buying Guide
About PureGuardian
Based in Ohio, Guardian Technologies is a relatively new name in the health and wellness industry, but it has already established itself as one of the top brands in the market.
The company aims to solve common household problems like poor indoor air and strives to create a healthy and comfortable air environment inside your house.
The company believes in giving its consumers a more rewarding life experience by elevating their home environment standards.
It does so with its range of PureGuardian air purifiers, humidifiers, and essential oil diffusers that feature safe, innovative, and powerful technologies.
Why Pureguardian Humidifiers over Other Brands?
All PureGuardian humidifiers use Ultrasonic technology, so they don’t make a lot of noise. They are also designed with cutting-edge technologies and don’t put a big burden on your pocket.
But one feature that makes PureGuardian humidifiers different from other brands is its patent Silver Clean Technology that prevents the growth of mold and mildew on the water tank’s surface.
And unlike most humidifier brands that only offer a 1-year warranty, some PureGuardian humidifiers come with a 3-year warranty.
PureGuardian humidifiers are available in different sizes and include special features that meet specific needs.
For example, the H940AR is best for small spaces like your office or study, while theH5175W is better suited for bigger rooms.
What to look for in Pureguardian Humidifiers
Even though the brand is reliable and has quality products, not every PureGuardian humidifier will work for you.
To pick one that meets your needs, make sure you take the following into account:
Size/Tank Capacity
PureGuardian offers a wide range of products that fulfills different needs. You can find models that can cater to areas as small as 200 sq. ft and as large as 650 sq. ft.
For instance, the PureGuardian H4810 has a 2.5-gallon tank and covers up to 650 sq. ft.
For people who travel frequently, the PureGuardian H500 is a good option. It uses a water bottle and is very compact, so you can easily carry it along with you.
And if you’re looking for a humidifier for mid-sized rooms, check out the H7550. With a 1.32-gallon water tank, it can cover spaces up to 300 square feet.
Run Time
The runtime of PureGuardian humidifiers ranges from 12 hours to 120 hours, depending on the tank capacity. The larger the tank capacity, the more water it can hold, and the longer it can run without a refill.
The PureGuardian H910BL has the smallest tank capacity of 0.21 gallons and can run for 14 hours.
The PureGuardian H8000B is one of the products with the largest capacity of 2 gallons and will run straight for 120 hours.
Having a longer run time means you can stay unbothered about your humidifier without having to refill it constantly after a short while.
Controls
PureGuardian humidifiers come with a timer and a range of controls to control the mist levels as well. Such controls allow you to create an environment you are most comfortable with.
Most PureGuardian humidifiers have touch buttons on the front of the device, so you can adjust the unit quite easily.
Timer Settings
Only some PureGuardian humidifiers include a 12-hour timer that allows you to customize your run time and help you save energy.
Some models that come with a timer include the H8000B, the H5450BCA, and the Ultrasonic RH3200BCA.
Filter
Filters act as a barrier between the water tank and the part of the humidifier that blows out air. These filters are standard for all PureGuardian products.
You don’t need to replace a PureGuardian filter as soon as it gets a little dirty. You can clean the pre/charcoal filter layer attached to the HEPA part of the filter using the brush attachment tool found on your vacuum cleaner.
However, once the HEPA part of the filter is dirty enough that it looks grey or black, as opposed to the initial white color, you need to replace it.
Choice of Warm or Cool
PureGuardian has both warm and cool mist and cool mist only humidifiers. Both do an effective job, but since warm mist brings up the room’s temperature, it is suitable for use in winters.
On the other hand, cool mist humidifiers give off a room temperature mist.
Noise Levels
Since ultrasonic humidifiers do not rely on fans to work, they are pretty quiet.
All PureGuardian ultrasonic humidifiers make minimum noise so that you have a good night’s sleep. You can even keep one in your child’s nursery, and it won’t disturb him.
Humidistat
The humidistat keeps humidity levels in check and turns the unit off once the humidifier reaches the pre-set humidity level.
Most PureGuardian humidifiers come with a humidistat and an auto-off function.
How to Use a Pureguardian Humidifier Properly
PureGuardian Humidifiers are user-friendly and easy to operate. In most cases, you only need to fill the water tank, turn it on, and choose the mist setting.
For further information about how to use your PureGuardian humidifier, make sure you go through the provided user manual.
Care and Maintenance
It is very easy to care for and maintain a PureGuardian humidifier. Make sure you clean the unit from time to time to avoid problems like mold growth and water contamination.
Fill up the tank with clean or distilled water to avoid white dust. Also, make sure that the ultrasonic disc is clean to avoid dust blockages.
Troubleshooting Pureguardian Humidifiers
In case your PureGuardian humidifier stops operating properly or does not function at all, there are some basic measures you can take.
If your humidifier stops producing water vapor or humidity, ensure that the ultrasonic disc is clean and that the tank is attached correctly. Then, unplug the unit and then plug it in again to see if it works.
Sometimes, your humidifier might blow out air instead of mist. This could be because of excessive water in your tank. To fix this problem, just drain out some water from the tank.
The problem could also occur if the room’s current temperature is higher than the desired humidity level. To solve this problem, just increase the desired humidity. Also, clean out the tank and make sure there’s no residue left behind.
If the water in your tank is too cold or the ultrasonic disc is dirty or damaged, the humidity level will be low. So make sure you keep the disc clean and use room temperature water.
If you have a white dust problem, use distilled water in your tank as hard water has minerals residue that produces white dust.
If your warm mist humidifier fails to produce warm mist, it could be because humidifiers need at least 10 to 15 minutes to warm up the water. We recommend letting the unit run on the warm setting for at least 30 minutes.
If the humidifier starts making weird noises, make sure the tank is fitted securely and that the humidifier is placed on a flat surface.
Lastly, if the unit stops working suddenly, just unplug the device and plug it in again, and it should work.
If any problem still persists after you troubleshoot it, it’s best to call the company for further help.
Frequently Asked Questions
How much water can you add to the tank?
This depends on the tank capacity of each PureGuardian humidifier.
Some models suitable for larger areas have a large 2 to 2.5-gallon tank, while some have a small 0.5-gallon tank.
Can you use tap water in the PureGuardian humidifier?
While you can use tap water in a PureGuardian humidifier, we recommend using filtered or distilled water to keep the tank clean and prevent white dust.
Tap water can gradually damage the unit as well.
Can a PureGuardian humidifier cause health problems?
Generally, PureGuardian humidifiers are safe to use and don’t create health issues. However, if you try to combat dry air aggressively, too much humidity can also be a little dangerous.
Plus, if you don’t clean the water tank properly, it can spread harmful bacteria and mold along with the mist.
Warm mist humidifiers are also a potential burning hazard for children.
Final Verdict: What is the best PureGuardian humidifier sold today?
PureGuardian has over 20 ultrasonic humidifiers available, and all of them come with similar features, making it tricky to choose the best one.
But one humidifier that definitely stands out is the PureGuardian H8000B.
I’m a degreed ME (mechanical engineer) who is passionate about machines of all kinds. I created MachineWonders.com as a way to connect with others who love machines like me – or need help choosing one for their needs, application, or situation.
