Molekule Air Purifier Review. Is it Worth It?

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Ben Trapskin

I have carefully studied and evaluated many mattresses, sheets, pillows, duvet inserts, comforters, sleep gadgets, and adjustable beds for over a decade. My insights and evaluations are grounded in both my extensive personal experience and valuable customer feedback. I have expertise and knowledge of the industry. I have used this to conduct detailed assessments of products. My insights and guidance have given consumers the best sleep experience. I am committed to quality and excellence in this field. EXPERT TESTED Every product is tested with a variety methods to give you the best assement of what it will actually feel like and if it is good quality. UPDATED REGULARLY Our reviews are updated daily and we strive to produce the most useful content so you can make an informed decision.
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I recently received a free Molekule air purifier for review and the newest Molekule Air Mini. Clean air has a direct impact on sleep quality. If you find that you wake up sneezing or with a stuffy nose, you may want to look into cleaning up the air in your bedroom. I have tried many air purifiers and all of them clean the air with HEPA filtration technology. While these do a good job, the technology really hasn’t evolved much. That’s why I was so excited to be able to try the Molekule.

Here’s a video overview of the differences between the original Molekule and the Molekule Mini.

The Molecule is different in that it has a PECO filter which stands for Photo Electrochemical Oxidation. According to their website:

Developed over two decades by research scientists, PECO is an innovative technology that utilizes free radicals—the same radicals used to kill cancer cells—to oxidize pollutants. By using nanotechnology, PECO is able to destroy pollutants 1000 times smaller than what traditional HEPA filters can trap.

This is a strong claim and would certainly put it ahead of a HEPA filter in terms of effectiveness but I think what it really comes down to is will it improve your sleep and overall health? I put it to the test in our house and here are my findings.

Ordering and Unboxing the Molekule

Right now the only way to get this is through their official website.  There are no coupon codes for the Molekule but right now you can get a free six-month filter pack with your order. A $65 value.

After you place your order you will get an email confirmation and another email a few days later with tracking information. It will arrive in a box like the one below.

Molekule Box

I was really impressed with the care they put into packing it. It was fun to unbox. As you can see below it is protected in a white pouch which lessens the need for more plastic.

Molekule Bag

There’s really no physical setup required. Just plug it in. The filter you get in the box is an extra filter you can use when it comes time to replace it.

molecule accesories

You may have considered buying this just based on looks alone and I can’t blame you. Having another electronic box in your room is probably the last thing you want on your Pinterest board. This looks like some futuristic fuel cell with a leather strap. It is a clean, modern design that won’t look out of place.

molecule unboxed 2

Setting up the Molekule

Other reviews have a lot of complaints about the Molekule app and setup process. I found the setup to be a breeze. It could be that I received it when updates were made to the software but I didn’t have any issues.

To get it setup just download the app on the Play or Itunes store and power up the Molekule. The app will walk you through the process. Once it is setup on your wifi network, it will do an initial cleaning which can take an hour, give or take depending on your room size.

molekule software


How Much Does the Molekule Cost?

This is the most expensive air purifier I have ever used. It currently retails for $799. Keep in mind though that you are getting a totally new technology that claims not only to trap but destroy pollutants 1,000 times smaller than what a HEPA filter can trap.

My Molekule Findings

I unbox lots of mattresses and any mattress made with foam will be prone to some off-gassing. Since I do this much more frequently than the average consumer, I normally have an air filter in my room. Unfortunately, they really aren’t good at eliminating volatile oganic compounds (VOCs).

The graph below shows how quickly a PECO filter, found in the Molekule will eliminate VOCs. This testing was done by the University of Minnesota and University of South Florida.

molekule vocs

You can view the full white paper here which explains the process in more detail.

The Molekule Air Mini

The Molekule mini is ideal for bedrooms or other small rooms. It uses the same PECO filter technology but in a smaller package.

Molekule Mini Box

The unboxing experience is the same and so is the build quality. The instructions are added to the box which makes setup a bit faster. One of their recommendations is to put it on your nightstand but there’s no way it would fit on my nightstand with my lamp, phone and everything else. Mine ended up on my dresser.

Molekule Unboxing 2

Again, rather than more plastic, they put the unit in a cloth bag.

Cloth Bag

Out of the box, it is basically ready to go.

Molekule mini open

The cord can wind itself underneath the unit for storage or to just get the right amount of cord to make your space neat. Again, great design by Molekule.  This cord is a two-prong rather than the three-prong on the bigger unit.

Molekule Mini Cord

There are 5 different levels for the Mini and there is currently no option for Wifi connectivity to the app but I think that may change in the near future. Below is a little video where you can hear it get louder as I increase the intensity.


At $399 the Molekule Mini is a more economical choice and if you have a small room, this would probably be the way to go.

My Molekule Air Purifier Recommendation

There are many facets to sleep hygiene, clean sheets, clean mattress, consistent bedtime, dark room, cool temperature, etc. What good is a nice mattress if it’s in a room where you are breathing polluted air? Investing in a good HEPA filter is a great start but having gone through many HEPA filters, I was really impressed with the PECO filter. After the first night my morning sneezing routing was almost completely eliminated. I now leave it on in silent mode.

One of the drawbacks is that fort he PECO filter to work its best, the light needs to be on. That can be problematic in a bedroom at night. Thankfully there is a night mode that keeps the filter running but turns the light on. I have night mode enabled but I did notice that it’s not quite as effective as eliminating any morning congestion. I think over time as I keep the filter running during the day, most of the pollutants in the room will be completely eliminated.

If you are thinking of investing in a filter, the Molekule is by far the best technology I have used and has made a real difference in my sleep quality and how I feel in the morning. While these would be great for every room of the house, they aren’t cheap and I think you will get the most bang for your buck by having one in your bedroom.

Learn more about the Molekule 

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Is Molekule Better Than a HEPA Filter?

Molekule and HEPA filters are both air purification systems that help improve indoor air quality, but they utilize different technologies and have unique strengths and weaknesses. Here’s a comparison between the two:


  1. Technology: Molekule uses Photo Electrochemical Oxidation (PECO) technology, which involves a light-activated nanocatalyst that breaks down pollutants at a molecular level, turning them into harmless substances.

  2. Effectiveness: Molekule claims to eliminate a wide range of pollutants, including bacteria, viruses, mold, allergens, and VOCs (Volatile Organic Compounds), that HEPA filters may not be as effective at capturing.

  3. Filter replacement: The PECO filter in a Molekule device needs to be replaced every six months, while the pre-filter should be replaced every three months.

  4. Noise: Molekule devices tend to be relatively quiet, with noise levels similar to a HEPA filter.

  5. Price: Molekule air purifiers are generally more expensive than many HEPA-based air purifiers.

HEPA filter:

  1. Technology: HEPA (High-Efficiency Particulate Air) filters use a dense network of fibers to mechanically capture particles in the air, including dust, pollen, and pet dander.

  2. Effectiveness: HEPA filters can capture particles as small as 0.3 microns with 99.97% efficiency. They are very effective at removing allergens and particulate matter but may not be as efficient in eliminating viruses, bacteria, and VOCs.

  3. Filter replacement: HEPA filters generally need to be replaced every 12-18 months, depending on usage and environmental factors. Some devices may also include a pre-filter or activated carbon filter to remove larger particles and odors, which may require more frequent replacement.

  4. Noise: HEPA filters can be relatively quiet, depending on the device and fan speed settings.

  5. Price: HEPA-based air purifiers are available in a wide range of prices, with many affordable options on the market.

In summary, Molekule and HEPA filters both have their merits. Molekule’s PECO technology may be more effective at eliminating a wider range of pollutants, while HEPA filters excel at capturing allergens and particulate matter. Ultimately, the choice between the two will depend on your specific needs, priorities, and budget.


Who Owns Molekule?

Molekule is a privately held company founded by Dr. Yogi Goswami, a scientist and engineer, along with his children Dilip Goswami and Jaya Rao. The company was established in 2014 and is headquartered in San Francisco, California. As a private company, Molekule is owned by its founders, private investors, and potentially employees with stock options. The specific ownership structure is not publicly available, but the Goswami family is central to the company’s leadership and development.

Does Molekule Detect Mold?

Molekule air purifiers do not directly detect mold in the air; rather, they use their proprietary Photo Electrochemical Oxidation (PECO) technology to eliminate a wide range of pollutants, including mold spores. PECO works by using a light-activated nanocatalyst to break down pollutants at the molecular level, turning them into harmless substances.

While Molekule air purifiers can effectively remove mold spores from the air, they do not have a built-in sensor or mechanism to specifically detect the presence of mold in your environment. To detect mold, you may need to use a mold testing kit or hire a professional mold inspector. However, by removing mold spores from the air, Molekule air purifiers can help to reduce the risk of mold growth and improve indoor air quality.

6 thoughts on “Molekule Air Purifier Review. Is it Worth It?”

    • MY molekule has been off for a year i brought it out to put new filters in plugged in nothing has happened Help

  1. Ya “connect to your wi fi, get our app” Screw that plug it in and switch it on or no deal. What the HELL is with all this app garbage? I bet this thing gathers data about every aspect of your house that it can. Even if not , again why the hell would I download ANYTHING for a damned air filter?

    • smartphones are like mini computers. Using an app saves them the cost of adding the needed computer parts to the machine. It also probably saves the consumer costs. I doubt it gathers any other data then the particles in the air. Our phones already gather the rest of the info about our entire lives anyway.

  2. The University tests are misleading in the way you’ve presented them. They tested a PECO purifier but not the one commercially available by Molekule. Just because one was effective doesn’t mean the other is.

    Molekule was rated by a number of sources as the worst air purifier ever tested, you should really consider changing your review as to maintain any sense of credibility.


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