Purezone 3-in-1 True Hepa Air Purifier Review

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I’ve chosen to make a Purezone 3 in 1 air purifier review 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 designed for small rooms and for placing in direct contact with you. So on a desk or bedside table. This does put it up against some tough competition, but pure enrichment do offer a formidable 5-year warranty, which means they must be very confident of the high quality of this fantastic looking air purifier, meaning it could well break into our best air purifier chart.

There’s a rapidly growing number of Purezone air purifier reviews on amazon by users that simply love this machine. So let’s take a closer look at whether this air purifier is a worthy choice for your home

Filtration System

The purezone 3 in 1 actually features a 4 stage filtration system, not 3. Very strange that the company would undersell this, but there we go. The 4 filter units are becoming fairly standard in the industry now, but none the less, good to see on a model as cheap as this. 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 combating smoke odor.

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.


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

This model comes in a neutral white color, which suits virtually any décor. All ducting on the unit is situated so that you can easily place the air purifier against a wall without suffering from poor performance. It’s possible as long as the unit’s vents aren’t blocked by any objects.

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 cheap 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 4-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.

New to the pure enrichment range this year, the purezone comes with an air quality monitor. Something previous models from the company have lacked. So it’s nice to see them keeping up with the competition this time around. Along with the quietness and the energy efficiency of this air purifier, it really is a good deal at a very good price.

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 150 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 120 and 180 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
  • Air quality sensor
  • Only suitable for rooms under 180 square feet

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

This air purifier is an excellent choice for small sized rooms. 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 very reasonable price tag. If you want to check out other models in a similar price range, have a look at our comparison chart.

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 from pure enrichment is a fantastic small sized air purifier. Very energy efficient as you’d expect from such a modern device, but it is ultra quiet and so an excellent choice for the bedroom.