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EnviroKlenz Mobile UV Large Room Air Purifier Review

The EnviroKlenz mobile UV air purifier uses three filtration technologies to eliminate virtually all impurities from indoor air.

The most notable is the EnviroKlenz® Air Cartridge that uses safe earth minerals to eliminate VOCs, odors and germs from the air. There’s also a HEPA air purifier and a pathogen-killing UV sterilizer.

The EnviroKlenz mobile UV air purifier is designed for extra-large spaces up to 1000 square feet.

We spent a month with this top-quality unit in our home.

Read on for our full review of the EnviroKlenz air purifier.

If you prefer a smaller or less expensive HEPA air purifier, see our reviews of the best HEPA air purifiers.

If you are looking for an ultra-quiet air purifier, check out our reviews of the quietest portable air purifiers.


  • Super-high capacity air filtration, ideal for large open plan rooms
  • Removes chemicals, odors, particulates & pathogens
  • 5-year warranty
  • Filter & bulb replacement reminders


  • Pricey
  • Fan can be noisy on highest setting
  • Not the best-looking appliance 

Unique Features

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1. Earth Minerals Instead of Carbon

Virtually all air purifiers use an activated carbon filter to absorb odors and pollutants like VOCs. 

The EnviroKlenz takes a different path.

Instead of activated carbon, the EnviroKlenz air purifier uses earth minerals - specifically titanium oxide, magnesium oxide and zinc oxide - to eliminate odors, chemicals, and VOCs.

EnviroKlenz provides links to third-party lab tests on their website proving that this air purifier drastically reduces ammonia, formaldehyde, and other chemicals in indoor air. Very few household units can do this.

And unlike carbon filters that risk re-releasing  trapped impurities, the EnviroKlenz earth minerals cartridge permanently removes and traps contaminants.

Another advantage of the EnviroKlenz cartridge is that its performance is not affected by humidity. In contrast, activated carbon filters can struggle to adsorb impurities if the air is too humid.  

The EnviroKlenz cartridge doesn't just remove VOCs and odors, it also eliminates 99.9% of viruses and bacteria.  According to the EPA, a high-quality air purifier (along with other measures) can help to protect your family from COVID-19.

Note: the metal oxides used in the EnviroKlenz are totally safe. Titanium oxide is actually approved for use in foods. Magnesium oxide is a common dietary supplement, and zinc oxide is often added to topical products like sunscreen. This air purifier doesn't release these materials in the air.

2. HEPA Filtration

The earth minerals cartridge doesn't trap everything. It’s excellent against chemicals, smells, and pathogens.

But to capture fine particulates like pollen and dust the EnviroKlenz UV air purifier incorporates a second stage of air filtration, a HEPA filter similar to the one found in most other air purifiers.

The HEPA filter traps ultra-fine particles as small as 0.3 microns including dust, pollen, mold spores, smoke, and other particulates.

3. UV Sterilization

The third and final stage of EnviroKlenz air purification process is UV sterilization.

This is accomplished using a pair of UVC bulbs that kill mold spores, mildew, bacteria and viruses.

Interestingly, the UVC bulbs don’t just purify the air, they also sterilize the HEPA filter and the interior of the EnviroKlenz air purifier. This ensures that biologicals cannot find a way back into the air. 

4. Large Room Coverage

With a max CFM of 250, the EnviroKlenz air purifier is perfect for an open space living room, a large open basement, or any other big space.

We installed it in our open-plan living room of approximately 900 square feet, under a wall side table with plenty of ventilation underneath.

The unit can cover up to 1000 square feet, with up to 5 complete air changes per hour.

Issues and Limitations


If you are shopping for a budget air purifier, this EnviroKlenz is not it. Even their replacement filters are pricey.

But considering its excellent filtration performance, total biological and chemical removal, and large room coverage, this is the best 3-stage air purifier for a large room or a small apartment we've tested to date.

Large Size

The EnviroKlenz air purifier weighs 38lbs which means it’s not exactly easy to carry.

However, it is still portable since it comes with wheels, making it very easy to move the purifier from room to room.  We had no problems at all.

The EnviroKlenz air purifier is not pretty, either. It’s more like a big plain industrial-style box.

Unless you love industrial decor, the EnviroKlenz air purifier is probably not something you’ll want to display prominently in your living room.

We stored ours underneath an entry way table that had lots of ventilation underneath.

Noisy Fan (Kinda)

If you are looking for a whisper-quiet air purifier, we do not recommend EnviroKlenz.

It’s fairly noisy at the highest fan setting (62 decibels).

The lowest setting is quieter at 54 decibels, but is still audible.

That said, I napped on the sofa a couple of times in the room with the unit running on medium speed about 10 feet from my head - and I never really noticed it.  

The system makes a soft whooshing sound of air flowing, not a mechanical vibration.  It would make a great white noise machine, in my opinion.

How is The EnviroKlenz Mobile UV Air Purifier Different?

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The most significant difference between the EnviroKlenz air purifier and other air purifiers is the types of filters they use to eliminate contaminants.

Most air purifiers use an activated carbon filter to remove chemicals and VOCs from the air.

The EnviroKlenz air purifier uses a cartridge containing earth minerals.

Both work great at eliminating VOCs and gaseous chemicals, but the EnviroKlenz cartridge also removes viruses and bacteria and performs better in high humidity conditions.

I can attest to this last point - the house we tested the EnviroKlenz UV in is located in Florida, and we conducted the test in July, 2021.  The air was noticeably fresher after a few days.

Care and Maintenance

You'll need to replace the UVC bulbs every 18 months, the HEPA filter every 2 years, and the EnviroKlenz cartridge every 6 months.

The control panel has convenient replacement reminder lights for the HEPA filter, and UVC bulbs. Surprisingly, there isn’t one for the cartridge.

You can sign up for an auto-subscription filter replacement program to get these replacements sent to you just in time for the filter replacement.

Installing the EnviroKlenz Mobile UV Air Purifier

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You don't need to do any installation. EnviroKlenz is a plug-and-play, roll-where-you-need-it air purifier.

The only thing you need to do when the unit arrives is to open it up and install the UVC bulbs, the cartridge, and the large HEPA filter.  

This is intuitive and easy to do. We completed the task in about 5 minutes.

Warranty Information

The EnviroKlenz air purifier comes with an exceptional 5-year warranty. 

Which makes sense, because this appliance is very sturdy and definitely built to last.


CFM: 250

Air changes: 3-5 per hour

Fan speed: 4

Room size: 1,000 sq. ft.

Filtration stages: 3

Dimensions: 15.5W x 14D x 22H inches

Weight: 38lbs

Warranty: 5 years

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About the Author Tom Hanson

I’ve worked as an HVAC tech in Phoenix, AZ for the past 10 years. I created to help home owners select the right portable air conditioner, cooler or air purifier for their needs & budget in just a few minutes.

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