Purezone 3-in-1 True Hepa Air Purifier Review

PureZone 3in1 - air purifier

I’ve chosen to review the purezone 3 in 1 air purifier from Pure Enrichment because the manufacturer promises an ultra-quiet operation, which is very important to yours truly, who is an extremely light sleeper. At first glance, the appliance has a sleek design, a solid filtration system, and a number of energy-saving options.

The PureZone 3-in-1 air purifier is not designed for large rooms, but it can be a suitable choice for small bedrooms and cubicles. This does put it up against some tough competition like the Levoit LV H132 but pure enrichment do offer a formidable 5-year warranty, which means they must be very confident of the high quality of this little air purifier, meaning it could well break into our best air purifier under 100 chart.

Let’s take a closer look at whether this air purifier is a worthy choice for your home

Filtration System

Even though the name 3-in-1 implies a 3-stage filtration system, this air purifier actually has four filtering stages. This made me add a bonus point to the manufacturer, who doesn’t seem to be bragging about its product excessively.

Pre-filter – This filter takes care of such large particles as pieces of dust, pet hair, and lint flying around your room. It makes the job of other filters easier, helping them last longer. The pre-filter is washable and should be cleaned at least once a month. It’s part of the 3-in-1 filter package.

HEPA filter – A simple yet highly efficient HEPA filter takes care of 99.7% of particles 0.3 microns in diameter. This means you don’t have to worry about mold spores, pet dander, dust mites, and the like. The filter lasts for about 6 to 9 months depending on how often you use the air purifier. The replacement 3-in-1 filter package costs about $17.

Activated Carbon filter – This one deals with unpleasant household odors and smoke while filtering out formaldehyde, benzene, and other harmful gases. While it can hardly fight heavy industrial kitchen odors, it’s a great option for small rooms.

UV-C light – This filtration stage is optional. You can turn it off and on with a touch button located on top of the appliance. It deals with viruses, bacteria, and fungi. The light also gives the air an impressive freshness.

The yearly maintenance fee of this air purifier is low. You only need to spend about $30 – $35 on the replacement 3-in-1 filter package. If you wash the pre-filter on a regular basis, the package may last longer than the suggested 6 months. The filter use indicator lets you know when the filter needs changing.


PureZone 3in1 design

Pure Enrichment did an excellent job with the design of this unit. It’s small, compact, lightweight, and sleek. Its size is just 10.8 x 7 x 12.5 while the weight is only 6 pounds. You can carry the air purifier from one room to another without any effort.

This model comes in a neutral white color, which suits virtually any décor. Due to its small size, you can easily place the air purifier on a coffee table or a shelf. It’s possible as long as the unit’s vents aren’t blocked by any objects, and there is no danger of small children or animals tipping it over.

A sleek top panel is concealed on the top of the purifier. Its four simple touch buttons allow fast and easy operation.

I’m highly impressed with the design of this unit since it takes up very little space while providing good purification options.

Smart Options

When it comes to smart options, I can’t say that the manufacturer went all out. However, for a small air purifier like this one, too many options may not be necessary. It has a sufficient set of features to call the purifier a solid choice.

Filter Replacement Indicator – As I mentioned earlier, the filter replacement indicator allows you not to worry about the time to change the 3-in-1 package. When the light goes on, your filters have a few days of operation left.

Sleep Mode – If you are a light sleeper, like me, you’ll appreciate the sleep mode. The fan switches to the lowest setting and all the panel lights go out. In fact, the design of this air purifier makes the panel lights almost invisible from a distance anyway. But if you need complete darkness, you can turn them off entirely.

Timer – You can press the timer button to program the purifier for turning off after a certain time has passed. The appliance offers 2, 4, and 8-hour timer intervals. It’s a great energy saving option, which allows you not to worry about turning the unit off.

The only feature, which I truly miss in this model, is an air quality sensor. It’s up to the user to figure out which fan setting to use without any feedback about the air quality. However, considering the quietness and the energy efficiency of this air purifier, it’s not a problem to run it on the highest and medium settings for a long time.

The air purifier remembers the settings you programmed it for even if you turn it off and unplug the cord. When you turn the unit on again, it will work according to the previous settings.

Noise Levels

This is my favorite part of this unit. It’s really quiet. At the first two fan settings, it doesn’t interfere with your everyday activities and even sleep. At the highest setting, the air purifier is quieter than the refrigerator.

  • Speed 1 – 30 dB
  • Speed 2 – 40 dB
  • Speed 3 – 50 dB

For light sleepers, the first speed of the fan is highly suitable. So the manufacturer is not exaggerating here. The purifier is a great find for people, who have trouble ignoring the appliance noises.

Coverage Area

As we already figured out, this air purifier is not designed for large spaces. The manufacturer promises the coverage area to be about 200 square feet, but I have doubts. It seems that this rather small unit is suitable for much smaller spaces. Let’s check out the CADR information.

  • Smoke 80
  • Dust 80
  • Pollen 80

By using a simple formula (CADR x 1.5), I see that the area you could use the air purifier for is only about 120 sq. feet. Of course, it may be possible to operate this unit in larger rooms, but the efficiency will be much lower.

I would recommend using this air purifier in the rooms between 100 and 150 square feet.

PureZone 3in1 - filters


The air purifier comes with an impressive 5-year warranty. This speaks highly of a manufacturer. Every time I see a long warranty, I believe that the model is unlikely to break before the warranty period is up.

This Pure Enrichment warranty applies to the unit itself, necessary parts, and labor. However, if you fail to follow the operation guidelines, the warranty may be canceled. So make sure to change the filters on time and install the unit correctly.

It’s important to register the air purifier on the manufacturer’s website in order to activate the warranty.

  • Quiet operation
  • Powerful 4-stage filtration system
  • Low maintenance fees
  • Sleek design
  • Easy filter replacement
  • 5-year warranty
  • Sleep mode
  • Lacks an air quality sensor
  • Suitable for rooms under 150 square feet

purezone 3-in-1 true hepa air purifier review Conclusion

This air purifier is an excellent choice for small rooms and offices. It has a sleek and compact design, which doesn’t interfere with power and efficiency. The unit comes with a fair number of smart options, making the operation easy.

It’s an energy-efficient model, which can help you reduce energy bills while enjoying fresh air. For a unit of such a high quality and a long warranty, this air purifier comes with a reasonable price tag.

This article was written by Julia Montague – check out her author bio here

Pure Enrichment Purezone 3-in-1
  • 90%
    Final Rating: - 90%


The purezone 3 in 1 true hepa is a fantastic little air purifier. Very energy efficient as you’d expect from such a small modern device, but it is ultra quiet and so an excellent choice for the bedroom.

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