Pureguardian 100 Hour Ultrasonic Top Fill Cool Mist Humidifier Review

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Dry air can worsen several diseases and has other harmful effects. A humidifier is necessary for people in several parts of the world, where cold weather comes with extremely low humidity. And for that reason, the Pureguardian 100-hour Ultrasonic Top Fill Cool Mist Humidifier is an excellent investment.

It has ultrasonic technology that disperses a fine mist of moisture into the air while operating quietly. Furthermore, it is unique because it has a silver-clean protected tank that fights microbial growth to prevent slime cold, mold, and mildew. Along with Pureguardian, FridaBaby is also a cool-mist humidifier that serves as a humidifier, diffuser, and nightlight.

Are you interested in the product? Keep on reading to find out more. 

Pros and Cons



Unique Features

pureguardian ultrasonic humidifier review

The Pureguardian humidifier is an exceptionally well-made product. Several features make this unit unique and allow it to stand out from its counterparts. Let’s look at a few of them:

Ultrasonic Technology

This humidifier has ultrasonic technology. This means it produces a cool mist by a metal diaphragm that vibrates at a high frequency. This makes sound vibrations that propel moisture.

Then, the moisture is  absorbed in the air immediately. The Pureguardian humidifier doesn’t use a fan, which allows it to operate silently.

Aromatherapy Tray Option

It comes with an aromatherapy tray option. You can add a few drops of your favorite essential oil to the tray to create a peaceful and relaxing atmosphere.

Silver Clean Technology

pureguardian ultrasonic humidifier review

The water tank is protected using silver clean technology. A common problem with most humidifiers is microbial growth on the surface of the water tank.

However, the silver clean technology provides the unit with continuous odor-free, antimicrobial properties to prevent slime and bacteria growth.

Comparing Pureguardian with Competitors

There are several humidifiers on the market, but what exactly makes Pureguardian 100-hour ultrasonic stand out? 

Well, it is incredibly well-designed and compact, which makes it easy to store. It has a large tank capacity to operate for a long time without needing frequent refills.

This isn’t the case with most brands. Only a few humidifiers have a tank capacity as large as this product, making them suitable for a small room only. 

Moreover, the Pureguardian 100-hour ultrasonic humidifier has a maximum coverage of 630 sq. ft., variable control mist ,and dual mist temperature – features most of its counterparts don’t have.  

Issues & Concerns

pureguardian 100 hour ultrasonic humidifier

The Pureguardian humidifier is an excellent product. However, it has its drawbacks. These aren’t major setbacks, but they are still worth mentioning. 


After the base runs out of water, you may notice a ring of bacteria at the bottom. This can be hard to clean, especially since those crevices are hard to reach.


It is a bit complicated to refill the tank, as it needs to be held in a certain position. This may get quite awkward while filling the tank. Thus, it would help to have a water opening at the top.

Mist Temperature

This unit is advertised to have a warm and cool mist; however, most consumers find that the warm mist isn’t warm at all. It is more like a room temperature mist, which may be of concern to some. 

However, if you don’t have use for warm mist, this won’t be a problem.

Care and Maintenance

pureguardian 100 hour ultrasonic humidifier

Proper maintenance and care of the humidifier are important for it to last a long time. Cleaning is an important part of maintaining the humidifier, and it may be intimidating to people at first, but it really isn’t difficult. Here are a few things to keep in mind when cleaning this product.


This humidifier comes with an excellent 3-year warranty. Guardian Technologies LLC warrant this product not to have any defects in materials and artistry, and the warranty applies from the day of purchase. It is essential to keep the original receipt with you to validate the warranty period.

Suppose there is any defect in workmanship and material in a humidifier part within the warranty period. In that case, the company will repair or replace the part without any additional charges. The warranty does not cover unauthorized repairs, which is why Guardian Technologies LLC must do all repairs.

The warranty doesn’t cover damage and defects caused by accident, unreasonable, and unadvised use of the product. For the warranty to be valid, it is essential to use the humidifier with genuine Guardian Technologies accessories.
For the warranty to be valid, it is essential to register it online and purchase the unit from authorized dealers only.


Where to Buy

You can buy the Pure guardian 100-hour ultrasonic top fill cool mist humidifier here.

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