the aerium 3.0
the aerium 3.0
the aerium 3.0
the aerium 3.0
the aerium 3.0
the aerium 3.0
the aerium 3.0
the aerium 3.0
the aerium 3.0
the aerium 3.0

the aerium 3.0

$225.00 Sale Save
Subscription With Subscription
Growth Cycle
Includes: aerium and spirulina starter kit with fresh spirulina, concentrated nutrients, and a sterille hydrophobic filter
+ billed after every cycle with fresh spirulina, replacement hydrophobic filter, and concentrated nutrients
Includes: aerium and spirulina starter kit with fresh spirulina, concentrated nutrients, and a sterille hydrophobic filter

Only 0 left in stock

Introducing the modern houseplant that compliments your indoor decor. The aerium 3.0 uses millions of microalgae to remove carbon dioxide and produce oxygen as effectively as 25 house plants. Complete your indoor ecosystem with the nutrient rich algae which can be recycled as an all-natural organic fertilizer for the plants that you love. 

To ensure that your algae are growing as efficiently as possible, we offer a refill subscription that provides fresh spirulina, concentrated nutrients, and replacement lab grade filters to ensure the system is low maintenance and easy to use.   The subscription is based on your unique indoor ecosystem. Based on ambient CO2, number of inhabitants, temperature, and light, your growing period can vary from 30 to 60 days.

Please note: Algae is a living organism and needs access to light and air to grow. We recommend setting up your aerium within 48 hours of arrival for best results. 

Product Details :

  • Designed to improve the air quality in a room up to 10ft x12ft
  • Reduces carbon dioxide, produces oxygen, and removes particulate matter
  • A unique blend of elegance, simplicity, and functionality.  
    • The premium glass design offers superior optical clarity and durability for effective sterilization in standard dishwashers
    • Both the algae container and silicone lid are safe to run through the dishwasher
  • LED light for continuous photosynthesis
  • Capable of growing 1.5 L of microalgae in a cycle
  • Warranty: The aerium comes with a 1-year limited warranty 

Product Specifications:

  • Dimensions: 17”x 8”x 8”
  • Weight: 2.87 lbs (dry weight)
  • Volume: 1.5 L  
  • Power: 110V US Plug
  • Filters: 0.22 micron inline filter, 0.1 micron lid filter, and biological algae filter
  • LED light source
  • Designed, manufactured and packaged in Maryland, USA. 


Product is estimated to ship within 1-2 weeks of purchase. Standard shipping typically arrives in 5-7 days but shipping time may vary. Customers will be notified by email with tracking when product ships.

We are still packing boxes and growing algae, and you can expect to receive your order within 30 days of purchase.  The product comes with a 1 year warranty. Thank you in advance for your patience!


AlgenAir was co-founded by Dan Fucich, PhD and Kelsey Abernathy, PhD while finishing their doctoral research in marine biotechnology. They wanted to apply the incredible potential of algae to improve indoor air quality.

Based on 85 reviews
the aerium 3.0
Patrick Miller
Bubbly night light

We used a CO2 sensor to see what effect it had in the room. There was no statistically impact, though obviously some CO2 is being stored in the algae that grow.

Otherwise though, it's a pretty bubbly night light in our bathroom.

We did have the pump in the basement fail after about 2 months, but customer service was very prompt and helpful sending a replacement with no hassle.

Thank you for trying the aerium! We're very glad you are enjoying the aestetics of the aerium in your indoor ecosystem.

It's great that you have been monitoring the ambient CO2, we love hearing about the data that our customers collect! At this scale, the aerium does have its limitations, it's important to keep in mind that every indoor ecosystem is unique and performance may vary.

We're also happy that you had a good experience with customer service! We always looking to improve customer experience and device performance, so your review is extremely helpful.

aerium refill kit
Steven Muskal
So far so good!

Loving using protists/plants (i.e. nature’s solution) to improved O2/CO2 balance!

the aerium 3.0
Joe Rehnblom
Aerium review

I actually love the product, it goes from a white color to a light green to a dark, it’s an awesome little nightlight, really quiet, I’ve had no issues so far, quite soothing at night when everything is shut down, I’d definitely say it’s one of the coolest modern day houseplants I’ve ever had.

Hello Joe,
Thank you very much for trying the aerium! We are glad you enjoy the modern houseplant in your indoor ecosystem. Please let us know how we can help in any way, and we look forward to continue supplying you with refill kits in the future!
Very Respectfully, 
Dan Fucich, PhD

the aerium 3.0
Mark Parker
Happy Customer

Wonderful product.

Something’s Off

Usually the refills are great but the last two have been off. They never really get very green and don’t seem to be making as much of a difference in the air quality as they usually do. I don’t know if the last batch of algae wasn’t very good or what happened but something has changed and not for the better.

Hi Amy,

Thank you very much for letting us know! My apologies if your recent refills have not been viable recently. We would be happy to replace your refill for free covered under your live algae guarantee, please feel free to reach out to and we will make it right!

Very Respectfully, 

the aerium 3.0
Leonard Gaspari
Great way to moderate CO2 in a home

I struggled with how to get rid of CO2 in the home. Opening windows certainly works but I don't want to do it during wild fires or winter months. Aerium 3.0, with additional light, helps a lot. (Reducing my CO2 by 100 ppm on average) I would definitely recommend this product.

aerium refill kit
Chris Sunde
Perfect for apartments

I live in an apartment where they’re doing lots of renovations. The fumes from that plus my own cooking results in less than ideal air quality. But the constant oxygen replenishment from my Aerium keeps the apartment air quality great!

aerium refill kit
Kyle Solomon
Easy Peasy

25 plants in the house just like that. Easy to assemble and then watch it grow. No maintenance.

the aerium 3.0
Daniel F. MacDougall III
Great Product, Love how it works

I have enjoyed using the Aerium 3.0 for sure. It works as advertised. The only thing to be aware of is the light that comes from it is bright to help the algae grow. I have an air quality monitor in my house and my air quality has improved for sure since I started using the Aerium.

aerium refill kit
Darlene Striano

We absolutely love our Aerium!

The shades of color are brilliant and very captivating.

the aerium 3.0
Christopher Miller
Actually Works :)

Aerium was easier to setup and clean than I expected and turned the darkest shade of green in about 5 weeks, so I'm sure it pulled out a lot of CO2. Other than opening the window, this is the best option, especially during the hot & cold months here in the Northeast. A little pricy but a great long-term investment. Hoping office buildings and public areas embrace this concept and allow the aerium to be scalable.

the aerium 3.0
Ray Jackson
Fast response to my request!

After submitting my request to change my refill subscription from 60 days to 30 days, I didn't expect to receive a response for 48 hours or so. Instead I received a response in less than 12 hours. Thank you for the quick turnaround!

aerium refill kit
chris barton
this system works great

I am getting about 5 weeks before I need to change out. plants love the leftovers!

Hi Chris,
Thank you for your review! We're very glad you enjoy your refills and that your spirulina is keeping your plants happy and healthy. We look forward to shipping your next refill!
Very Respectfully,


Although I think this is a great concept, I have found that opening my windows for a short period is the most effective. In Hawaii this is easy to do. The aerium does not bring the CO2 levels down enough on their own.

Hi GH,
Thank you for taking the time to write a review and test the aerium! At this time, the aerium is designed for a small, unventilated room, where windows may not be able to be opened (especial in cities). We're excited to incorporate your feedback to scale up our living technology so we can have an even larger effect in bigger buildings!
Thank you for your support!
Very Respectfully,
Dan Fucich, PhD
Co-founder AlgenAir

Not sure it is working

The first kit I received was fine. It became dark green after one month. In fact, very dark, But the second after one month is very pale. I am not dure it has enough algae for my room. Obviously, I followed the instructions. In particular, I added distilled water. Let us how it goes with the 3rd kit.

Hi Vadim,

Than you for reaching out! We're sorry that your unit is not performing as expected. The transition from light green to dark is exactly what should be observed. The second shipment will be replaced free of charge because of our Live Algae Guarantee, as long as your refill shipment was opened within 48 hours. Contact us at so we can get your replacement started!

Very Respectfully,
Dan Fucich
Co-founder AlgenAir

aerium refill kit
Ron Gaydos
What refill kit?

I believe I subscribed for it and am not receiving it. Please check.

Hi Ron,

Thank you very much for reaching out! We would like to make sure we have all of your information correct in our system. We'd love to resolve your issue at feel free to contact us there!

We will reach out within 3 business days to make sure you're satisfied.

Very Respectfully,
Dan F.
Co-founder, AlgenAir

the aerium 3.0
Scott Kelley
Great Concept, Needs to be Larger

I think the concept is great and I like to see the algae grow. I have a relatively large office with a CO2 sensor. Unfortunately when the Aerium is running, it doesn’t do much to affect the CO2 levels. Levels rise the same as they were before I had it. The system needs to be 20x larger to help reduce ambient CO2 levels in my office. From what I’ve read, humans emit 1 kilo of CO2 per day, so unfortunately the small size of they system doesn’t make a huge impact. I would love to see some way to have this system permanently sequester the CO2 I breath.

Thank you so much for taking the time to review the aerium! We agree that the current scale of the aerium is just the beginning. We are actively scaling up our technology to have more of an impact in enclosed spaces like yours! We realize every indoor environment is different, so your CO2 levels may not be affected with just one unit. We appreciate your support and patience as we scale up our devices for larger use cases to remove more CO2 than ever before!

My Two Aeriums

I am new to Algen Air and already have 2 Aeriums. It has been a long while since I have heard the term "photosynthesis" and excited to have it right in my home!!!
As for the Oxygen and Fresh Air within walls with immovable is the reason I can be in such a nice apart except for its lack of air flow...
Thank You for making all of this come together for me!

Thank you very much for your review of your aeriums! We are glad that you enjoy bringing photosynthesis into your indoor ecosystem, and we are excited to continue supplying refills!

the aerium 3.0
Paul Johnson
Good start, needs refinement

Lights are on always, so not appropriate for a bedroom where you need it the most.

Glass and valve assembly means it's a clean look but a simpler setup would be a fish tank bubbler on a hose that's replaceable.

I knew what I was getting into just wish for the price they'd have thought to control lighting separately since algae need time to rest...

Thank you so much for your review of the aerium! We appreciate customer input because we are always in the iterative process of product and user experience refinement. For this version of the aerium, the lights are always on for continuous photosynthesis. The homogenous mixing allows for ample cellular shading as to not overwhelm their photosystems. We recognize that a lot of customers use the aerium in their bedroom and are working on a light-blocking solution for this exact reason!
We’re working on improvements so that the light (and bubbling) can be controlled via Bluetooth in future hardware releases. Very early on in development, a submerged airline was ruled out due to contamination potential and we went with an easy to clean design (the clean look is an added benefit).
We appreciate your patience with the current aerium design and hopefully, this gives a preview of what our hardware team has in store for the future!

the aerium 3.0
The Aerium In Your Home

The Aerium which facilitates photosynthesis produces Fresh Air as it states. It has operated in my environment which has immovable windows and seems to be the direction of high rise living.
I know that every home / office ought to have an Aerium.
If you have a pets they will love the sound of the bubbles...!

aerium refill kit
Sergei Yurovski
The quality of refills greatly vary.

Some refills last as described. But my last refill arrived already very green and the Aerium got completely clogged within three weeks and had to be turned off.

Hi Sergei,

Thank you very much for your review! We're always looking to improve our customer experience, so you input is greatly appreciated. The spirulina that we ship is a living organism, so there is some natural variability among refill batches. We're happy to offer our Live Algae Guarantee that ensures viability all the way to your doorstep.

We'll follow up with you with regard to your hardware to make sure that we correct any issues you are having with your unit. The microalgae culture will transform from a light green to a dark opaque rich green color over ~45 days, but the viscosity should not 'clog' up your unit. We're happy to troubleshoot and get your hardware functional again so you can continue growing fresh spirulina in your home as soon as possible!

Thanks again!

-Dan Fucich, PhD
Co-founder AlgenAir

Healthy algae on demand

The algae refill was delivered securely and the algae is growing healthily. Dark green color after a few weeks. Feathered seems like it sticks to the glass more than the mint.

aerium refill kit
Jeff Mellor
Superb customer service

Prompt superb customer service is a real treat. When the pump on my first unit went out, a replacement was provided in short order.

the aerium 3.0
Jeff Mellor
Great tech support

Unit bubbles merrily and algae growth is great, but pump can be dodgy. Fortunately tech support has been prompt and helpful

Hi Jeff,

Thank you very much for your kind words! We're correcting the pump hardware revision and appreciate your patience. We're happy to report when we resume shipping December 2022 this issue will be revised. Please let us know how we can help in any way!

aerium refill kit
Isaac Boampong
nice, simple, easy to work with

packaging was very clearly labeled and made it obvious which bag was algae and which was nutrients. seems good to me