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Pure Enrichment PureZone 3-In-1 Review

An inexpensive, decent overall machine with few notable qualities
Pure Enrichment PureZone 3-In-1
Credit: Pure Enrichment
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Price:   $100 List | $99.98 at Amazon
Pros:  Quiet, low operating costs
Cons:  Mediocre power, few settings
Manufacturer:   Pure Enrichment
By Buck Yedor, Max Mutter, and Steven Tata  ⋅  Jun 17, 2021
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64
OVERALL
SCORE


RANKED
#8 of 14
  • Air Cleaning Performance - 40% 4
  • Noise - 25% 9
  • Ease of Use - 25% 7
  • Operating Cost - 10% 8

Our Verdict

The Pure Enrichment PureZone 3-in-1 is a quiet machine with very few other noteworthy qualities. If cost and noise are your top priorities, this unit might be a good choice. The PureZone is generally an average performer. It's quiet and functional in small bedrooms but just doesn't have enough power to be used in spaces larger than 100 square feet.

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Price $100 List
$99.98 at Amazon
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Pros Quiet, low operating costsQuiet, low operating costs, excellent priceGood air cleaning performance, low overall costInexpensive, low operating costsNot terribly loud, compact
Cons Mediocre power, few settingsLower power for larger roomsSomewhat expensive replacement filtersPoor air cleaning performance, flimsy constructionPoor air cleaning performance, high operating costs for a machine of its size
Bottom Line An inexpensive, decent overall machine with few notable qualitiesIt's quiet, well designed, and relatively inexpensive, but is suitable for smaller room sizesA great combination of good performance and low cost make this a great budget optionA low cost model with correspondingly poor performanceA compact model with relatively poor performance and no redeeming attributes to make that up
Rating Categories PureZone 3-In-1 Levoit LV-H132 GermGuardian AC4300... Holmes HEPA Type De... Hamilton Beach TrueAir
Air Cleaning Performance (40%)
4.0
5.0
6.0
3.0
3.0
Noise (25%)
9.0
9.0
6.0
6.0
7.0
Ease Of Use (25%)
7.0
8.0
7.0
5.0
4.0
Operating Cost (10%)
8.0
8.0
7.0
10.0
5.0
Specs PureZone 3-In-1 Levoit LV-H132 GermGuardian AC4300... Holmes HEPA Type De... Hamilton Beach TrueAir
Dimensions 10.8" x 6.9" x 12.1" 7.5" x 7.5" x 13" 8.88" x 6.38" x 22" 13" x 10" x 5.5" 9.5" x 7" x 15"
Weight 6.5 lb 8.45 lb 9.45 lb 4.7 lb 4.9 lb
CADR 80 CFM 110 CFM 100 CFM 70 CFM N/A
True HEPA Yes Yes Yes No No
Estimated Lifetime Cost $279 $323 $495 $143 $573
Airborne Particulate Reduction After 1 Hour (%) 93.58% 95.66% 99.39% 89.49% 89.49%

Our Analysis and Test Results

Performance Comparison


The PureZone is capable enough for smaller areas, but you'll want to...
The PureZone is capable enough for smaller areas, but you'll want to look elsewhere if you need something for a larger space.
Credit: Jenna Ammerman

Air Cleaning Performance


The PureZone 3-in-1 was an average performer in our air cleaning tests. When placed into our smokey, 150 square foot testing room, it struggled a bit to get going, removing only 83% of the airborne particulates over the first half-hour (for comparison, the top-performing Coway removed over 99% in the same time span). After an hour, it increased that reduction to 96%. The PureZone is capable of keeping small bedrooms (~100 square feet) mostly allergen-free, but it will likely struggle a bit in larger spaces. If you need more cleaning power on a budget, the GermGuardian AC4300BPTCA is a worthy alternative.

The PureZone is great for small bedrooms but struggles to remove all...
The PureZone is great for small bedrooms but struggles to remove all the airborne particulates from a larger living space.
Credit: Jenna Ammerman

Does UV Purification Work?
The PureZone also offers a UV light that is meant to kill microorganisms in the air moving through it. While this technology has been proven effective in industrial-scale units used in hospitals, this technology is largely unproven in household units. Also, UV lights can sometimes produce ozone, which is a lung irritant. If you want to err on the side of caution, you might want to keep this feature turned off.

Noise


This is where the PureZone really shines, as it is nearly silent on its low setting. It emits a fairly low-pitched hum on medium and high that certainly isn't offensive, and some may even find it to be a pleasant white noise. This again adds to its usefulness as a small bedroom machine, as you'll likely be sleeping in close vicinity to the machine. If quietness is your first consideration in buying a purifier, we think the PureZone is the best deal you're going to find.

Ease of Use


The PureZone offers an average user experience. Setup is a breeze, and the simple control panel lets you easily dial in your preferred settings. We also really liked that this more basic machine offers an automatic off timer. It's really nice to know your purifier will shut off when you head to work, even if you forget to do it yourself. At 8.45 pounds, the PureZone is also relatively light, and is easy to move around due to the built-in carrying handle.

The PureZone features simple controls for adjusting fan speed...
The PureZone features simple controls for adjusting fan speed, setting the off timer, and turning the UV light on and off (again, we would suggest leaving it off).
Credit: Jenna Ammerman

The only downside of PureZone's user experience is that it lacks many of the bells and whistles of the higher-priced models. That means no remote control, only three fan speeds, and no built-in air quality meter. These features are by no means necessary, but they do add a degree of convenience.

Operating Cost


The PureZone is a decently economic machine. With a relatively low street price of $100, inexpensive $17 replacement filters, and fairly efficient electricity usage of 0.02kWh per hour, we calculated an estimated lifetime cost of $323 (assuming a lifespan of five years). This is well below the average.


Value


There is one situation where the PureZone is a good value: if you both plan to use it in a small (~100 square foot) room, and you are sensitive to noise. In that case, you get a nearly silent machine that will effectively clean the air in your room for a reasonable price. However, if you need more power than that or don't care about a slightly louder fan, the GermGuardian AC4300BPTCA is a more powerful machine at the same price.

Conclusion


Apart from its very quiet operation, the PureZone 3-in-1 is an average performer. If you're sensitive to noise and plan to use your purifier in a small (~100 square foot) bedroom, it will probably serve you well. It's somewhat of a niche product — it offers a good value for use in a small room with noise-sensitive occupants. Otherwise, there are better models available in the same price range.

Buck Yedor, Max Mutter, and Steven Tata