New study: rising atmospheric CO₂ is now reflected in human blood test results.
Serum bicarbonate - linked to CO₂ in the body - has increased about 7% over the last 20 years, tracking the rise from ~369 ppm to 420+ ppm in the air.
phys.org/news/2026-02...
forum.aranet.com/aranet-home-...
And here's a link to the forum thread about this, in case you want to read a bit more :)
The atmospheric pressure change at higher altitudes is compensated. No "offset" but calculation accordingly to sensor element manufacturer's recommended formula. Compensation calculation is programmed in the firmware. Regarding altitude - sensor can be used without limitations up to 4000 m
After a very harsh European winter, the measurements on your Aranet look heavenly.
Fresh Air Friday has arrived again.
What is your Aranet4 showing right now?
UK research reveals indoor CO₂ >1,000 ppm impairs cognition: 15% worse word recognition in schools, 7% slower math speed, 2.2% longer reaction times. Bedroom spikes to 2,395 ppm vs. 835 ppm cut next-day logical thinking by 3%.
Full findings: www.venti-group.com/docs/what-is...
Let’s give some credit to restaurants & cafés that clearly care about ventilation and their guests’ wellbeing.
Tag a spot you know has good air. Maybe they’re open about their ventilation, or maybe you’ve checked it yourself with your Aranet4.
Drop the name & the location so others can find it too.
As today marks four years since the unlawful full-scale war against Ukraine began, we urge you to remember that there is strength in unity.
Guided by our belief to connect and protect what matters, we continue to stand with Ukraine - until victory, and for as long as it takes to rebuild and recover.
A hand holding Aranet4 CO2 sensor in front of a window
Fresh Air Friday!
What numbers is your Aranet4 showing right now?
Is radon monitoring on your "winterizing the house" checklist?
Because it should be! www.breakfasttelevision.ca/videos/home-...
We want to create content that you can learn from.
What indoor air quality questions are on your mind right now?
Love is in the air, but is that it?
Get 14% off all our sensors and bundles with code CARE14 today and tomorrow! Head to our shop and commit to knowing your air.
aranet.com/en/home/prod...
A picture of Aranet4 sensor in a travel case that is clasped to a backpack, carried by a person outdoors.
Do you take your Aranet4 with you when you leave home? 👀
Where has it travelled with you?
Aranet4 at my doctor's office 😳😬 How does staff not have continual headaches, let alone infection rates? Seriously how is this not supposed to affect my confidence level?
One kid gets sick and suddenly it’s a house-wide event.
What’s your best trick for stopping the domino effect? Share your tips and tricks!👇
www.youtube.com/shorts/59S53...
Really appreciate the shout-out, Mike! Thanks for helping make indoor air quality part of everyday conversation!
"We are now facing the largest measles outbreak since the disease was eliminated from the United States over a quarter-century ago." @sanders.senate.gov
Sadly, other diseases are to be expected: without vaccines, poor indoor air renewal will lead to the spread of airborne diseases.
Totally get it 🙂 Quality sensors aren’t cheap to make - you’re paying for accuracy, reliability, and data you can actually trust. :)
Fresh Air Friday!
We know it’s cold.
Go ahead and open that window anyway.
Oh, we feel you! It's the warmest day of this week today, and it's -9 °C 🥲
What CO₂ ppm are you seeing in your Aranet4 right now?
Did you measure #radon in your house during the Radon Action Month? What were the results?
We're seeing lots of radon questions: what it is, health risks (lung cancer #2 cause), action levels & mitigation? So we've compiled top FAQs into this quick Radon 101 crash course! Test your home. 👇
www.youtube.com/watch?v=6bni...
#RadonAwareness #IndoorAirQuality #AranetHome
Invisible, cancer-causing, and in millions of Canadian homes. @CBCNews latest report on radon is a must-watch reminder: the only way to know your risk is to test and monitor your home’s air.
www.youtube.com/watch?v=PLYM...
With emphasis on sealing houses tightly for energy efficiency that was the rage up until maybe 5-10 years ago, most US houses have bad air. Too much CO2. Get an aranet4 for your house and you will be shocked. 1000-1400ppm is about 15% less cognition. Over 1400 is 50% less. We open windows daily
A nice little guide thread to not drying your eyes out this heating season 👀
A CO2 meter showing 2277ppm
Probably not that surprising that I can’t concentrate for shit today…
