#CO2monitor
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myrabatchelder.bsky.social
Grateful about the air quality at the Melbourne Convention and Exhibition Centre for the Women Deliver conference. #CO2Monitor #StillMasking #WD2026 @womendeliver.bsky.social
Photo of CO2 monitor that states 521
April 28, 2026 at 4:57 AM
oseiler.bsky.social
Documentation, firmware and soonish also updated bom at
github.com/oseiler2/CO2...
GitHub - oseiler2/CO2Monitor
Contribute to oseiler2/CO2Monitor development by creating an account on GitHub.
github.com
April 23, 2025 at 10:36 AM
drinfosec.bsky.social
🎯 thread by Prof Haddrell explaining this very interesting research 👇. To bookmark (📌) and share.

#IAQ #CleanAir #CO2monitor #CleanTheAir
ukhadds.bsky.social Al Haddrell @ukhadds.bsky.social · Aug 9
CO2 monitors have become popular tools people can use to estimate their indoor air quality.

A new study was recently published that looks into how we can use them to optimise occupancy thresholds and identify problem locations.

Actual practical science!!!

A thread
August 9, 2025 at 3:00 PM
quarantegan.bsky.social
#CovidConscious #CleantheAir #CO2monitor
December 30, 2025 at 8:30 PM
oseiler.bsky.social
👋

Note the code has moved to codeberg.
codeberg.org/oseiler/CO2M...

Happy to help, I'm just not here on bsky that much
CO2Monitor
CO2Monitor
codeberg.org
March 1, 2026 at 11:25 PM
drinfosec.bsky.social
From @breathesafeair.bsky.social on Twitter:

"Newly updated: My favourite carbon dioxide monitors for all price ranges"

Link to the freshly updated line-up:
breathesafeair.com/carbon-dioxi...

#CO2 #CO2monitor #IAQ #CleanAir #IndoorAirQuality
"Newly updated: My favourite carbon dioxide monitors for all price ranges." https://breathesafeair.com/carbon-dioxide-monitors/
November 21, 2025 at 11:23 PM
bekitty.bsky.social
The code for Seiler's AQ/CO2 monitor can be found on github here: github.com/oseiler2/CO2...
GitHub - oseiler2/CO2Monitor
Contribute to oseiler2/CO2Monitor development by creating an account on GitHub.
github.com
March 1, 2026 at 10:49 PM
thewhn.bsky.social
Ventilation plays an important role in preventing airborne infections. Opening a window helps, but real ventilation is about consistent airflow. CO₂ monitors can give a simple signal of how much shared air is building up indoors.

Share to help raise awareness. 💨🌿

#CleanAir #CO2Monitor #Ventilation
Square graphic with a dark blue/gray background. Top left reads “whn.global”; top right reads “Clean Air.” Large tilted green banner headline: “Ventilation” isn’t just opening a window. Below, a CO₂ monitor screen shows 811 CO2 ppm with status Normal, time 13:54, and POA 84. Other readings on the screen: 36 (Noise, dB), 44.1 (RH, %), 3 (PM2.5, µg/m³), 24.0 (Temp, °C), 3 (PM10, µg/m³), 93 (eTVOC, VOC Index). Bottom text says: “Although that helps, real ventilation is about airflow: how much clean air moves through a space. More clean air means a safer space. CO₂ monitors show if fresh air is flowing — or if it’s time to do more.” Footer: “World Health Network - Science for a safer, healthier world.”
February 20, 2026 at 1:42 PM
donatemask.bsky.social
Closed windows due to smoky air can increase the concentration of carbon dioxide (CO2) indoors. 🏠 Keep an eye on indoor CO2 levels with the Aranet4 Home Edition, on sale now for $269.99.🎉

Don’t miss out! Sale ends May 23.

buymask.ca/collections/wildfire-smoke-protection

#Sale #Aranet4 #CO2Monitor
Photo of a Aranet4 Home Edition (CO2 monitor) with the text "10% off". "May 11-23, Wildfire Smoke Protection Sale, buymask.ca"
May 17, 2026 at 1:20 PM
sonjahartl7.eurosky.social
Für alle, die sich fragen, wie gut die Raumluft wirklich ist, die man gerade einatmet

Aranet4 HOME um € 125,40 im Black Friday Sale
wenn man den 5% Couponcode LUFTSPRUNGARANET nutzt

€ 7,20 Versandkosten kommen dazu

Dürfte der bisherige Tiefstpreis fürs #Aranet4Home sein

#co2monitor #IAQ
Order Summary Add Discount LUFTSPRUNGARANET Subtotal 132.00 EUR Discount 6.60 EUR Taxes 20.90 EUR Total 125.40 EU
November 20, 2025 at 1:28 PM
oseiler.bsky.social
I have yet to cut and attach the diffusor screens, but love how this test is turning out.
#co2monitor #CleanAir #CovidIsNotOver #CovidNZ
Small square plastic enclosure with 4 green lights illuminating the whole front panel through a diffusor film. A cut out on the right shows a small display reading 567 ppm Same co2 monitor now with red lights and reading 1065ppm co2 Same co2 monitor now with yellow/orange lights and reading 792ppm co2 Same co2 monitor now with purple lights and reading 1236 ppm co2
April 23, 2025 at 10:36 AM
mosssphagnum.bsky.social
"Did you know that the chicken shares a common ancestor with T-rex?"

"Miss__ Why do you have fried chicken ? "
"We're dissecting it"
"With our mouth??"
"yes"
#evolution #friedchicken #biology #ventilation #CO2monitor
Aranet4 in front of a box of fried chicken Open window
November 27, 2024 at 5:56 AM
ladyscorcher.bsky.social
Mike if you travel by train you may be able to borrow one of these gizmos from the library for free. Here’s Toronto’s program. www.torontopubliclibrary.ca/co2monitor/
Borrow a Carbon Dioxide (CO2) monitor
You can borrow a CO2 monitor from your nearest branch with a Digital Innovation Hub. Knowing the CO2 levels can help you take steps to improve ventilation and lower the risk of airborne infections.
www.torontopubliclibrary.ca
March 30, 2025 at 4:31 AM
kirkmurphy.bsky.social
Ugh. Welded to my elastomeric ( @flomask.bsky.social etc), with NO nasal spray (Enovid, until a different source available) & CO2monitor (Aranet) until we have sterilizing Covid vax.
Together with Pokémon vaccine strategy: collect em all!
(And trusting @jmcrookston.bsky.social will save our lives!)
Bluesky
whenjmcrookston.bsky.social
August 21, 2024 at 12:15 AM
donatemask.bsky.social
The DonateMask.ca Mini-CO2 Monitor is currently sold out, but if you have one and want to decorate it, the Donatemask.ca Mini-CO2 Monitor Air Quality Sticker is on sale for only $1.99. 🎉

Get yours today! Sale ends May 23.

buymask.ca/collections/wildfire-smoke-protection

#CO2Monitor #Sale
Photo of an Donatemask.ca Mini CO2 Monitor Air Quality Sticker with instructions and reference information. The following text is on the image: "20% off". "May 11-23, Wildfire Smoke Protection Sale, buymask.ca"
May 18, 2026 at 5:00 PM
donatemask.bsky.social
Do you have an Aranet4 already? Get the Aranet4 Air Quality Sticker, which is on sale for $1.99. 🎉 The sticker provides helpful reference information and adds some fun.

Get yours today! Sale ends May 23. 🗓⏰

buymask.ca/collections/wildfire-smoke-protection

#Sale #Aranet4 #CO2Monitor
Photo of an Aranet4 (CO2 Monitor) Air Quality Sticker with the Donate A Mask logo, and illustrations of an N95 mask and a cloud with the "CO2" in it. The following text is on the image: "20% off". "May 11-23, Wildfire Smoke Protection Sale, buymask.ca"
May 17, 2026 at 11:50 PM
aranethome.bsky.social
🌬️ Clear Air Sale is ON! 🌬️
Take control of your indoor air with Aranet4 and AranetRn+ — your smart companions for CO₂ and radon monitoring.

🕛 Offer ends June 14, 00:00 PT — don’t miss out!

👉 Shop now at aranet.com

#AirQuality #Radon #CO2Monitor #HealthyHome #SmartLiving
May 29, 2025 at 1:27 PM
oseiler.bsky.social
New batch of classroom co2 monitors just landed
#CleanAir #CovidIsNotOver #CovidNZ #co2monitor
A number of small square pcbs arranged in a 8x3 pattern on a blue cutting mat. Each board has a esp32-s3 module, scd4x co2 sensors in a small metal case, 4 neopixel leds, a usb c connector and a bunch of smaller components. A larger display footprint is not populated. The second board from the left in the middle row is rotated 90 degrees clockwise while all others are oriented the same way. Slightly closer shot of the pcbs now with a small oled display soldered on each one. One co2 monitor in a 3d printed white case with a transparent acrylic front panel. The 4 leds (one in each corner) are lit up orange and the display shows 737ppm.
April 23, 2025 at 10:33 AM
sonjahartl7.eurosky.social
In any room without indoor air quality monitoring, we’re just passengers—flying blind, with no control over what we breathe.

Good, that reliable+ handy low cost CO2 Monitors are available, with indoorco2map.com the crowd can contribute to make the invisible visible
#IAQ #CO2Monitor
#saubereLuft
June 24, 2025 at 7:29 AM
mawaruk.bsky.social
買ってよかった23
キングジム　卓上CO2モニター
www.kingjim.co.jp/sp/co2monitor/

CO2を可視化できるようになって、換気のタイミングがわかりやすくなり、休憩もしやすくなった。
今まで換気は気が向いたときにするものだったのが、変わりました。健やか。
December 13, 2023 at 8:37 AM
mishwoz.bsky.social
This is a fascinating summary from a study
#ventilation #Sleep
#CO2monitor #HealthyHomes

Highlights :
Negative impact of bedroom CO2 1000ppm was found
Acute stress biomarker after waking increased with decreased sleep quality

Most current standards are inappropriate for sleep
Excerpt of study referenced in subpost "Ventilation causing average CO2 concentration 1000ppm negatively affects sleep: A field - lab study on healthy young people " Excerpt summary of study continued ' highlights Negative impact of bedroom CO2 1000ppm was found Acute stress biomarker after waking increased with decreased sleep quality Most current standards are inappropriate for sleep Excerpt from study Indication of relative reduction sleep efficiency compared to CO2 750ppm 1000ppm ⬇️1.3% sleep efficiency 1300ppm ⬇️1.8% Deep sleep duration decreased Significant ⬆️salivary cortisol after waking suggests ⬆️ stress and sympathetic activity Ventilation causing an AVG CO2 1000ppm or above should be avoided
November 24, 2024 at 7:01 AM
cleanairclassrm.bsky.social
Today
On
#CleanAirDay

@michaelmarmot.bsky.social
@ukhsa.bsky.social @rcpch.bsky.social @rcphysicians.bsky.social
@georgemonbiot.bsky.social

Why Treat Children
"Only to return them to
Conditions
That are making
Them Sick" 🤮

Know Your Air
#CO2Monitor
#Ventilation
#SafeAndHealthySchools
Screenshot book The Health Gap Improving health in am unequal world Author Michael Marmot CO2 level In a UK school 7256ppm Florence Nightingale photo Excerpt from nursing notes "Health of houses There are 5 essential points in securing the health of houses 1. Pure air 2. Pure water 3. Efficient drainage 4. Cleanliness 5. Light Without these no house cam be healthy "
June 19, 2025 at 4:36 PM
visiblair.bsky.social
☀️ Breathe easy this summer… and save! 🌿
Our Summer Sale is ON — get 25% OFF selected Visiblair models for a limited time! Don’t miss out! 🕶️💨

🔗 [https://visiblair.com]

#AirQuality #SmartHome #SummerSale #CO2Monitor #IndoorAirQuality #TechForGood #HealthyHome #Cleantech #AirSensor #CanadaTech
April 8, 2025 at 12:02 PM
rappaccini.bsky.social
If they are a bit techy, and it sounds like they might be, there are instructions for making one here:
GitHub - oseiler2/CO2Monitor
Contribute to oseiler2/CO2Monitor development by creating an account on GitHub.
github.com
January 13, 2026 at 3:33 AM
annemarie1.bsky.social
Super excited to share this interview with @earlyyears.tv
We discuss simple ways to improve Indoor Air Quality (IAQ). I hope it makes ppl think about the air our children are breathing 🙏
💚MONITOR, FILTER, VENTILATE 💚
#LongCovidKids #CleanAir #HEPA #CO2monitor
www.earlyyears.tv/episode/free...
Free Video: Anne Marie McConway on Fresh Air, Fresh Start: Health in EY Settings
Discover how improving indoor air quality in your setting can significantly boost children's health, reduce illness transmission, and support better learning outcomes through simple, practical measure...
www.earlyyears.tv
February 28, 2025 at 9:16 PM