Best Pureguardian Ultrasonic Humidifier Reviews (Complete Buying Guide)

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Shopping for the best Pureguardian Ultrasonic Humidifier?

We have got you covered.

Dry and arid areas require a humidifier to make thoseplaces more livable. Otherwise, the dryness makes it hard to breathe and may also provoke allergies.

And when it comes to dehumidifiers, one of the brands you can definitely trust is PureGuardian. 

If you’re new to the brand, here’s everything you need to know about it.

Why Buy PureGuardian vs. Other Brands?

Pureguardian is a renowned brand that sells top-quality humidifiers. It has made its way into the market with updated ultrasonic technology and excellent filtration systems.

Many companies sell only specific sizes of humidifiers. You won’t find many brands that sell a diverse range of humidifiers catering to each commercial, residential, and industrial category’sneeds.

But with Pureguardian, you are will easily find a unit fit for your individual needs. These humidifiers are not only high-quality but also cost-effective. Customers are sure to find a deal worth their money and a product suitable for their use. More on all their unique features later.

Our Top 3 Picks

What's In This Buying Guide

Table of Contents

Our buying guide is extensive and covers every aspect related to buying Pureguardian ultrasonic humidifiers. First, we review some of the best Pureguardian humidifiers. The reviews are detailed and discuss distinguishing features of every model.

Next, we take a look at some of the features that govern your choice of model. These factors assess the customer’s needs and requirements.

We also take a look at the brand, what it is about, how and why it is better than other humidifier brands, and what makes their products unique. Towards the end of this guide, we also mention all the crucial features to look for in a Pureguardian humidifier.

Lastly, we briefly discuss the limitations and FAQs about these humidifiers before ending the article with the conclusion on the best pick. Read on to find out everything.  

Best Pureguardian Ultrasonic Humidifiers

pure guardian ultrasonic humidifier
  • PureGuardian 70-Hour Ultrasonic Cool Mist Humidifier

  • Best for prolonged use

  • Capacity
    One Gallon

  • Run time
    70 hours

  • Mist temperature
    Cool

  • Weight
    6.51 Pounds

  • Number of Humidifiers in the pack
    2

  • Auto-shutoff
    No

  • Aromatherapy
    No

pureguardian ultrasonic humidifier review
  • PureGuardian 14-Hour Nursery Ultrasonic Humidifier

  • Best for use around babies

  • Capacity
    0.2 Gallon

  • Run time
    14 hours

  • Mist temperature
    Cool

  • Weight
    1.7 Pounds

  • Number of Humidifiers in the pack
    1

  • Auto-shutoff
    No

  • Aromatherapy
    No

pureguardian ultrasonic humidifier review
  • Pure Guardian H3200WAR

  • Best for cool mist

  • Capacity
    1.5 Gallons

  • Run time
    100 hourss

  • Mist temperature
    Cool

  • Weight
    6.35 Pounds

  • Number of Humidifiers in the pack
    1

  • Auto-shutoff
    Yes

  • Aromatherapy
    Yes

pure guardian ultrasonic humidifier
  • Pure Guardian H4750AR

  • Best for large rooms

  • Capacity
    Two Gallons

  • Run time
    120 hours

  • Mist temperature
    Cool and Warm

  • Weight
    5.55 Pounds

  • Number of Humidifiers in the pack
    1

  • Auto-shutoff
    Yes

  • Aromatherapy
    Yes

#1

Best for prolonged use

Our first pick is this high-performing 70-hour humidifier that is the perfect machine for any place. It has several unique features that make the 70-hour ultrasonic humidifier one of PureGuardian’s most top-selling humidifiers.

Invest in this product and make your living spaces much more comfortable and that, too, quite conveniently.

PROS

CONS

Features

Our Review

This smartly designed humidifier is quite compact and lightweight. It easily fits in small spaces such as side tables, consoles, or even study tables. Its one-gallon water capacity lasts for 70 hours and prevents the need for frequent refills. Hence, one refill can easily last for more than three days.

The humidifier produces cool mist. The pleasant coolness of the mist not only helps make the temperature of the room better but is also safe for use around kids. This is because cool mist poses no accidental burning threats, preventing the need for constant supervision.

The humidifier’s body is made with treated plastic. Antimicrobial treatment helps the humidifier fight against bacterial and mold growth. When the water level is low, the indicator blinks to alert the user.

Moreover, there are three speed settings for mist sprays in this humidifier that you can use according to your needs. The cherry on top: the package comes with two humidifiers.

Editor's Rating
4.8/5

Babies are quite sensitive to their environment, which is one of the primary reasons why parents take extra precautions to create a safe and relaxed atmosphere around the house. This unit will help you do just that.

This PureGuardian humidifier is designed for nurseries and is the perfect little addition to make your baby’s room as comfortable as possible.

PROS

CONS

Features

Our Review

We all know that a baby’s room does not have much furniture. As soon as they begin to crawl, the furniture around them poses the danger of falling and bumping.

However, a few essential furniture items like a changing table and a nightstand suffice perfectly for positioning this nursery humidifier.

This particular PureGuardian humidifier measures 4-1/3L x 6-1/3W x 8H inches in dimensions. It is the perfect little size for lightly furnished rooms and nurseries.

One tank fill contains approximately 26 ounces of water that can last for up to 12-14 hours on the lowest speed settings. The time period is sufficient to last through day or night without requiring refills. Furthermore, the compact humidifier produces a cool mist, which does not pose any burn hazards.

The unit is easy to fill and is controlled by a simple ON/OFF control button. You can adjust between the speeds according to your liking.

One of the best things about this humidifier is that it is super quiet. There are no gurgling or humming sounds that come out of it. Since babies are light sleepers, this feature adds even more value to the humidifier for use in nurseries.

Lastly, it has a subtle blue and white color that easily blends in with interiors.

Editor's Rating
4.7/5

#3

Best for cool mist

This cool-mist humidifier by PureGuardian is one of the best models out there. It is the perfect addition to spas, homes, and offices.
Cool mist not only rejuvenates a dry environment to make it easier for people to breathe but also helps bring down the indoor temperature.

PROS

CONS

Features

Our Review

For us, this is the best cool mist humidifier and has a surprisingly high water carrying capacity amounting to up to 1.5 gallons. The tower-shaped sleek, and smart design is capable of handling larger rooms than it seems possible. You can use this humidifier for rooms as large as 400 square feet.

One refill can last quite long, i.e., up to 100 hours. The huge capacity is especially useful for busy environments where it is not feasible to refill the tank every few hours. Therefore, offices, spas, shops, and people with busy schedules would find this humidifier quite useful.

The water tank is detachable, which makes refilling even more convenient. The controls are pretty easy to understand. There is an ON/OFF button and a control for setting the mist speed.

But that’s not all.

This humidifier even holds an aromatherapy tray. You can place a few drops of essential oils on this tray to fill the room with a pleasant fragrance. The essential oils are released with the mist and spread throughout the room.

Furthermore, the model features a rotating nozzle that can spray out mist in different directions in the room, ensuring even coverage.

Like all other PureGuardian humidifiers, this model also has silver anti-microbial protection technology. The antimicrobial treatment prevents the formation of molds and mildew on the tank surface. It also ensures that the mist sprayed out is clean and free from any harmful microbes.

Editor's Rating
4.4/5

#4

Best for large rooms

Our last pick is suitable for use in large rooms. This ultrasonic humidifier offers maximum customization of use and is perfect for people who need a humidifier constantly.

PROS

CONS

Features

Our Review

This PureGuardian humidifier is packed with features bound to make your living spaces more pleasant and handling a humidifier much easier.

It is ideal for large rooms and is usable in combined dining and drawing rooms. It is also quite suitable for open space house designs and studio apartments.

With a water-carrying capacity of two gallons, the humidifier frees the user of the trouble of frequent refilling. The tank holds sufficient water to last up to 120 hours or five days. If you ramp up the mist speed, the water may run out a little quicker. Still, you won’t have to refill it very frequently.

Each day, the humidifier releases around 13L of water in the form of mist to moisturize the air and reduce the stress of allergies.

It also counters dryness and makes it easier for people with dry sinuses to breathe. It is one of the best humidifiers for people dealing with dry noses.

There are several user-friendly features on this unit.

Firstly, it allows the convenience of setting timers. This is quite helpful, especially for people with busy schedules. You can set the timer so that the humidifier turns off when you leave the house for work.

Moreover, you don’t have to worry about the unit malfunctioning if it keeps running without water. Once the water in the tank is finished, the unit automatically turns off. Hence, you don’t have to keep it under constant supervision.

Editor's Rating
4.5/5

Pureguardian Ultrasonic Humidifier Buying Guide

pure guardian humidifier reviews

While the features of a humidifier matter a great deal, the conditions and the requirements of the user also need due consideration. Without assessing the needs, it is not possible to choose the right humidifier.

For this reason, we have listed some of the most important features that you must assess to work out your requirements and thus select the right humidifier.

Climatic Conditions and Temperature

pureguardian ultrasonic humidifier reviews

Dry conditions can prevail in hot and cold climates. However, humidifiers come with two types of mists. Some can only produce warm mist, while others can only produce a cool mist.

But you can definitely find some humidifiers that produce both.

Cold regions would benefit more from warm mist humidifiers as the warm air would help manage the temperature and suspend better in cold climates.

However, in hot areas, the cool mist is better as it travels better and helps lower the room temperature.

Make sure you are aware of the type of mist that would suit your climatic conditions before buying a humidifier.

Your Routine and Schedule

Several features of a humidifier can make operating it quite convenient. Such humidifiers are highly suitable for people with busy schedules or those who want a low-maintenance unit.

Timer settings help users set the working of the humidifier so that it turns off when the person is not around. Similarly, auto-off technology turns the humidifier off once the water tank is empty.

But, if you can easily manage to refill the tank or turn it on and off as required, there is no need to spend hefty amounts of money on such features.

Aromatherapy

The choice of using a humidifier for aromatherapy is completely dependent on the user. Some places like spas and yoga centers prefer humidifiers that are usable with essential oils.

Aromatherapy also works well for fostering a relaxing environment inside the home. If you want to use essential oils in your humidifier, make sure you buy one that supports an oil tray.

About Pureguardian

Pureguardian humidifiers are manufactured by Guardian Technologies, a company with its headquarters set in Ohio. The US-based company specializes in several home appliances, including filters, sanitizers, and heating and cooling appliances, along with a wide range of humidifiers.

Established in 2002, the company swiftly made its way to the USA’s top home appliance manufacturer’s list. The humidifiers launched by the company have earned special recognition and are hailed alongside other leading products like humidifiers by Honeywell.

They pay special attention to customer services and are inspired by continued innovation to produce quality products.

Why Choose a Pureguardian Ultrasonic Humidifier over Other Kinds?

pureguardian ultrasonic humidifier review

As discussed above, PureGuardian is a US-based company that specializes in several home appliances. The company knows its way around good-quality and long-lasting products.

But that’s not the only reason why we recommend it over other brands. Here are a few more reasons why you should choose a PureGuardian humidifier over other kinds:

Highly Efficient Ultrasonic Technology

Pureguardian humidifiers use ultrasonic technology rather than conventional evaporative technology.

Instead of using heat, such humidifiers make use of ultrasonic waves to turn water droplets into a vaporized mist. The technology hence removes the need for heat for the functioning of the humidifier.

As a result, it poses no hazards in the form of boiling water or heating elements. You can enjoy the same effectiveness in a much more compact and safer design.

Bacteria-Free Innovative Technology

Building on ensuring a safe environment, PurGuardian humidifiers use Silver Antibacterial Technology. This technology prevents the growth of mold and mildew inside the water tank. Mold, mildews, and bacteria can fester well in wet environments, but the anti-microbial technology prevents their growth.

Hence, there is no risk of vapors being contaminated by microbes that may disperse in the air and cause diseases.

Available in Various Sizes

pureguardian ultrasonic cool mist humidifier

Unlike many other companies that only sell humidifiers for a specific clientele in only a few select sizes, PureGuardian humidifiers are available in a variety of different sizes. 

The range includes humidifiers with low coverage for small rooms to those capable of performing in large spaces of up to 600 square feet.

You can easily find the right size for your home, office, spa, or even a baby’s nursery.

What to look for in a Pureguardian Ultrasonic Humidifier

Now, let’s take a look at some defining features of a humidifier. To land the best deal, you must assess each of these features in the selected models against your needs.

Coverage

pureguardian ultrasonic humidifier reviews

The coverage of a humidifier refers to the size of the room it is usable in. In other words, it refers to the floor size that the particular model can cover.

If you have a small room, get a humidifier that can humidify rooms that measure around 150-200 sq. ft. For medium-sized rooms, you might want to get a humidifier with a coverage capacity of 200-400 sq. ft.

For larger rooms, offices, and spaces like spas or yoga centers, get a humidifier that is usable in a floor plan of 400-600 square feet or above.

Tank capacity

This is a very important consideration that is also affected by your routine and schedule. If you don’t want to deal with the trouble of refilling the water tank every few hours, then invest in a unit with a tank capacity of around one gallon. One gallon would last for three to four days at the lowest mist speed.

There are greater tank capacities of around two gallons available as well that can run for four to five days. Such humidifiers are useful in busy areas like offices or spas. A smaller tank capacity that can last one to two days is sufficient for home or occasional use.

Run Time

pure guardian ultrasonic humidifier

The run time depends on the tank capacity. If you have a busy routine where you don’t find time to frequently refill the water tank, make sure to get a humidifier that has enough capacity to run for a couple of days, even at high speed.

However, if you only want to use the humidifier during work hours or for sleeping, then go for units with a shorter runtime as they are cheaper.

Power Efficiency

pure guardian humidifiers

In most areas, a humidifier may run all day long. The continuous use will cause a spike in energy bills if the humidifier is not energy-efficient.

To prevent this, make a one-time investment in the latest power-efficient technology. The one-time investment would save bucks later by keeping energy use low.

Maintenance Costs

Humidifiers are an everyday need in dry areas. Their constant use does mean they will need maintenance every now and then. But the maintenance does not have to be difficult or costly.

Using tap water creates mineral dust in most humidifiers that you can easily clean with a simple wipe. Buy humidifiers that are easy to clean, have antimicrobial treatment in tanks, and do not require technical assistance every time you clean them. This would save time, cost, and effort of maintenance.

Durability

Like any other appliance, durability is quite essential when it comes to humidifiers as well. To ensure that your investment lasts for a long time, look for sturdy humidifiers.

Plastic is the most popular choice of material for appliances, but it’s best to look for a high-grade and rigid plastic that does not break easily. The tank needs to be sturdy enough to withstand the occasional bumps it may encounter during refilling.

Warranty

Without a warranty, no one buys an appliance nowadays. Humidifiers are no exception.

Pureguardian humidifiers offer different warranty periods. A one-year warranty is sufficient for humidifiers that are occasionally used or are active only for a couple of months every year.

However, it is better to get extended warranties for humidifiers meant for constant use throughout the year.

Limitations

Almost all PureGuardian Ultrasonic Humidifiers produce white dust. When used with tap water, the humidifier deposits the mineral content separated from the water during the process of vaporization as white dust.

While the dust is easily cleaned with a damp cloth, in areas with very high mineral content in water might, you will have to use a mixture of distilled and tap water to lower the creation of white dust. This is to keep the operation optimal at all times.

Frequently Asked Questions

pureguardian ultrasonic humidifier reviews

Do PureGuardian Ultrasonic Humidifiers offer an auto-shut-off?

Yes, most PureGuardian humidifiers feature an auto shut-off. This feature turns the appliance off once the water in the tank is finished. This prevents the humidifier from malfunctioning.

Are humidifiers usable with tap water?

Yes, PureGuardian humidifiers are usable with both tap as well as distilled water. You don’t necessarily have to fill them up with distilled water. Tap water may produce some mineral dust, but that is not a cause of concern.

You can use distilled or tap water as you like. This is one feature that keeps the running cost of PureGuardian humidifiers lower than other humidifiers that only work with distilled water.

How frequently should I refill my humidifier water tank?

The tank capacity of your humidifier determines how frequently you need to refill it. If the capacity is more than a gallon, you won’t need to refill the tank for a couple of days.

Smaller capacities may require daily refills. And larger capacities of around two gallons or more can even run up to more than five days on a single refill.

However, to make things convenient, PureGuardian Humidifiers have an indicator light that alerts the user when the water tank is nearing a refill.

Final Verdict: What is the Best Pureguardian Ultrasonic Humidifier?

Out of all the humidifier options that we reviewed in this guide, we find the Pure Guardian H4750AR to be the best of the lot.

It has a two-gallon capacity, a long 120-hour runtime, and it produces warm and cool mist. Moreover, it offers convenient features like timers, auto-shutoff, and mist speed options.

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