OpenAeros
@openaeros.bsky.social
open source and low-cost air, mask, and filter quality solutions, home of the OpenCPC
openaeros.com
openaeros.com
Reducing complexity ➡️ reduced cost ➡️ reduced price.
Optical counters are the heart of high-performing CPCs. By using the latest in manufacturing technology and some ingenuity to simplify and modernize our optical counter, resulting in a 10x reduction in associated manufacturing costs.
Optical counters are the heart of high-performing CPCs. By using the latest in manufacturing technology and some ingenuity to simplify and modernize our optical counter, resulting in a 10x reduction in associated manufacturing costs.
November 10, 2025 at 5:15 PM
Reducing complexity ➡️ reduced cost ➡️ reduced price.
Optical counters are the heart of high-performing CPCs. By using the latest in manufacturing technology and some ingenuity to simplify and modernize our optical counter, resulting in a 10x reduction in associated manufacturing costs.
Optical counters are the heart of high-performing CPCs. By using the latest in manufacturing technology and some ingenuity to simplify and modernize our optical counter, resulting in a 10x reduction in associated manufacturing costs.
Hope everyone enjoyed their Halloween weekend! Here at the OpenAeros offices, everyday is spooky season. 👹🎃💆♂️
November 3, 2025 at 7:22 PM
Hope everyone enjoyed their Halloween weekend! Here at the OpenAeros offices, everyday is spooky season. 👹🎃💆♂️
Interested in (a low-ish audio quality phone video of) the talk @masknerd.bsky.social gave this year at the @americanaerosol.bsky.social conference in Buffalo? Well you're in luck! Here's his presentation of low-cost instrumentation measuring UFPs in real-world urban and suburban settings.
OpenAeros AAAR 2025: Low-Cost Instrumentation for Ultrafine Monitoring in Urban Environments
YouTube video by OpenAeros
youtu.be
October 29, 2025 at 7:53 PM
Interested in (a low-ish audio quality phone video of) the talk @masknerd.bsky.social gave this year at the @americanaerosol.bsky.social conference in Buffalo? Well you're in luck! Here's his presentation of low-cost instrumentation measuring UFPs in real-world urban and suburban settings.
Miss our first OpenRespirator Creative Cohort Live meeting? No worries, we've posted our discussion here! Get to know our cohorts, get read-in on their efforts and progress, and see some early designs. youtu.be/C0Q0ZH6e5AA
OpenRespirator Creative Cohort: Live Meeting 1
YouTube video by OpenAeros
youtu.be
October 20, 2025 at 6:58 PM
Miss our first OpenRespirator Creative Cohort Live meeting? No worries, we've posted our discussion here! Get to know our cohorts, get read-in on their efforts and progress, and see some early designs. youtu.be/C0Q0ZH6e5AA
🦇🎃🧛 'Tis the season... to discuss some of our favorite all-time makes. In the spirit of his OpenRespirator build, Wyatt (one of our ORCC creatives 👻) fills us in on a set of Halloween teeth he absolutely Had To Have and how he taught himself to design and produce his own in middle school.
October 17, 2025 at 9:44 PM
🦇🎃🧛 'Tis the season... to discuss some of our favorite all-time makes. In the spirit of his OpenRespirator build, Wyatt (one of our ORCC creatives 👻) fills us in on a set of Halloween teeth he absolutely Had To Have and how he taught himself to design and produce his own in middle school.
Reposted by OpenAeros
Join us this afternoon at 3pm CST for our first OpenRespirator Creative Cohort Live Meeting! Get to know our cohorts, get read-in on their efforts and progress, and ask your questions. Tune in here: bit.ly/48jHI6J
😷 💙 ▶️
😷 💙 ▶️
October 10, 2025 at 5:11 PM
Join us this afternoon at 3pm CST for our first OpenRespirator Creative Cohort Live Meeting! Get to know our cohorts, get read-in on their efforts and progress, and ask your questions. Tune in here: bit.ly/48jHI6J
😷 💙 ▶️
😷 💙 ▶️
Join us this afternoon at 3pm CST for our first OpenRespirator Creative Cohort Live Meeting! Get to know our cohorts, get read-in on their efforts and progress, and ask your questions. Tune in here: bit.ly/48jHI6J
😷 💙 ▶️
😷 💙 ▶️
October 10, 2025 at 5:11 PM
Join us this afternoon at 3pm CST for our first OpenRespirator Creative Cohort Live Meeting! Get to know our cohorts, get read-in on their efforts and progress, and ask your questions. Tune in here: bit.ly/48jHI6J
😷 💙 ▶️
😷 💙 ▶️
Jon Jon is an artist, animator, masker, and maker hailing from Toronto. Jon Jon has been executing his own PPE builds and mods for years, incorporating his hobbies and art with practical and health needs. Here, he talks about cosplay and masking and the exciting opportunities in their overlap:
October 8, 2025 at 7:44 PM
Jon Jon is an artist, animator, masker, and maker hailing from Toronto. Jon Jon has been executing his own PPE builds and mods for years, incorporating his hobbies and art with practical and health needs. Here, he talks about cosplay and masking and the exciting opportunities in their overlap:
This year, we’ve been working with a team of passionate, creative makers to put our open source respirator prototype manufacturing methods to the test. We’re so excited to be introducing you to a couple of them this week. In the meantime, here’s some background on what we’ve been up to: (1/4)
October 6, 2025 at 9:21 PM
This year, we’ve been working with a team of passionate, creative makers to put our open source respirator prototype manufacturing methods to the test. We’re so excited to be introducing you to a couple of them this week. In the meantime, here’s some background on what we’ve been up to: (1/4)
Reposted by OpenAeros
Glad to bring the "little CPC that could" to the Healthy Indoor Air event at the UN today. The conversation in clean air are moving in the right directions.
Open source hardware will be part of the solutions and proud to show off the OpenCPC as part of tools that can help us measure it.
Open source hardware will be part of the solutions and proud to show off the OpenCPC as part of tools that can help us measure it.
September 23, 2025 at 7:50 PM
Glad to bring the "little CPC that could" to the Healthy Indoor Air event at the UN today. The conversation in clean air are moving in the right directions.
Open source hardware will be part of the solutions and proud to show off the OpenCPC as part of tools that can help us measure it.
Open source hardware will be part of the solutions and proud to show off the OpenCPC as part of tools that can help us measure it.
Aaron (and our little CPC! 🥹) are taking their places on the floor of the UN! This year is the inaugural General Assembly High Level Side Event on Indoor Air Quality and we're so excited to participate.
The panel will open soon, watch along here: webtv.un.org/en/asset/k1v...
#IndoorAir
The panel will open soon, watch along here: webtv.un.org/en/asset/k1v...
#IndoorAir
September 23, 2025 at 7:40 PM
Aaron (and our little CPC! 🥹) are taking their places on the floor of the UN! This year is the inaugural General Assembly High Level Side Event on Indoor Air Quality and we're so excited to participate.
The panel will open soon, watch along here: webtv.un.org/en/asset/k1v...
#IndoorAir
The panel will open soon, watch along here: webtv.un.org/en/asset/k1v...
#IndoorAir
Come work with one of our sister projects!
Passionate about clean air, environmental justice, and community-based participatory research? The OSLUV Project(501c3 non-profit) is hiring for a Grant Project Manager position for a state funded air quality research effort. You also get to work with me 😂
www.linkedin.com/jobs/view/43...
www.linkedin.com/jobs/view/43...
The OSLUV Project hiring Grant Project Manager in St Paul, MN | LinkedIn
Posted 9:01:10 PM. Organization: The OSLUV Project, Saint Paul, Minnesota.Status: Immediate OpeningDuration: Summer…See this and similar jobs on LinkedIn.
www.linkedin.com
September 19, 2025 at 6:01 PM
Come work with one of our sister projects!
Reposted by OpenAeros
I couldn't think of a better way to have spent the last 2.5 years of my life. I am incredibly proud of what the team at @openaeros.bsky.social was able to accomplish. There were many who said this was impossible, but we did the impossible and this is just the start. 😁
#cleanairisahumanright
#cleanairisahumanright
We believe that clean air researchers and proponents are doing critical work for our health and future. Too few have had access to the tools to investigate the next frontier of airborne pollutants: ultrafine particles. But we have big news... (1/4)
Introducing the OpenCPC!
YouTube video by OpenAeros
youtu.be
September 15, 2025 at 7:17 PM
I couldn't think of a better way to have spent the last 2.5 years of my life. I am incredibly proud of what the team at @openaeros.bsky.social was able to accomplish. There were many who said this was impossible, but we did the impossible and this is just the start. 😁
#cleanairisahumanright
#cleanairisahumanright
We believe that clean air researchers and proponents are doing critical work for our health and future. Too few have had access to the tools to investigate the next frontier of airborne pollutants: ultrafine particles. But we have big news... (1/4)
Introducing the OpenCPC!
YouTube video by OpenAeros
youtu.be
September 12, 2025 at 7:03 PM
We believe that clean air researchers and proponents are doing critical work for our health and future. Too few have had access to the tools to investigate the next frontier of airborne pollutants: ultrafine particles. But we have big news... (1/4)
So, why does clean air really *matter*? The hazards we breathe are largely invisible and - the way we usually read the data - the human cost of those hazards has been invisible too. Aaron makes the case than in 2022, poor air quality was the # 1 killer in America (1/)
www.youtube.com/live/b45hakf...
www.youtube.com/live/b45hakf...
May 9, 2025 at 9:48 PM
So, why does clean air really *matter*? The hazards we breathe are largely invisible and - the way we usually read the data - the human cost of those hazards has been invisible too. Aaron makes the case than in 2022, poor air quality was the # 1 killer in America (1/)
www.youtube.com/live/b45hakf...
www.youtube.com/live/b45hakf...
Reposted by OpenAeros
Completely silly this happened you can't cancel science. We will continue to collect some cool data and share it anyways. Plus I feel like you only get a handful times to reference an Indigo Girls song in your title.
In the wake of federal changeover, March's EPA air sensor conference has been cancelled. We were excited to present work on community ultrafine exposure to our peers and policy makers. In lieu, we plan to make the presentation to the public online. Abstract is below.
You can’t cancel science.
You can’t cancel science.
February 12, 2025 at 4:34 AM
Completely silly this happened you can't cancel science. We will continue to collect some cool data and share it anyways. Plus I feel like you only get a handful times to reference an Indigo Girls song in your title.
In the time since we posted this, entire working groups dedicated to this and related community concerns have been eliminated from the EPA. If you were also slated to present air quality data or programming and would like to join us in presenting online, please reach out!
In the wake of federal changeover, March's EPA air sensor conference has been cancelled. We were excited to present work on community ultrafine exposure to our peers and policy makers. In lieu, we plan to make the presentation to the public online. Abstract is below.
You can’t cancel science.
You can’t cancel science.
February 11, 2025 at 8:19 PM
In the time since we posted this, entire working groups dedicated to this and related community concerns have been eliminated from the EPA. If you were also slated to present air quality data or programming and would like to join us in presenting online, please reach out!
Reposted by OpenAeros
If you are interested in moving the needle on respirator design, now is your chance.
Calling all covid conscious makers, product designers, and 3D artists! OpenAeros is excited to announce our search for makers, designers, and advocates to participate in a first-of-its-kind effort to develop three entirely new, entirely open source respirator designs. (1/4)
February 7, 2025 at 7:40 PM
If you are interested in moving the needle on respirator design, now is your chance.
In the wake of federal changeover, March's EPA air sensor conference has been cancelled. We were excited to present work on community ultrafine exposure to our peers and policy makers. In lieu, we plan to make the presentation to the public online. Abstract is below.
You can’t cancel science.
You can’t cancel science.
February 7, 2025 at 9:20 PM
In the wake of federal changeover, March's EPA air sensor conference has been cancelled. We were excited to present work on community ultrafine exposure to our peers and policy makers. In lieu, we plan to make the presentation to the public online. Abstract is below.
You can’t cancel science.
You can’t cancel science.
Reposted by OpenAeros
Calling all covid conscious makers, product designers, and 3D artists! OpenAeros is excited to announce our search for makers, designers, and advocates to participate in a first-of-its-kind effort to develop three entirely new, entirely open source respirator designs. (1/4)
February 4, 2025 at 10:08 PM
Calling all covid conscious makers, product designers, and 3D artists! OpenAeros is excited to announce our search for makers, designers, and advocates to participate in a first-of-its-kind effort to develop three entirely new, entirely open source respirator designs. (1/4)
Calling all covid conscious makers, product designers, and 3D artists! OpenAeros is excited to announce our search for makers, designers, and advocates to participate in a first-of-its-kind effort to develop three entirely new, entirely open source respirator designs. (1/4)
February 4, 2025 at 10:08 PM
Calling all covid conscious makers, product designers, and 3D artists! OpenAeros is excited to announce our search for makers, designers, and advocates to participate in a first-of-its-kind effort to develop three entirely new, entirely open source respirator designs. (1/4)
At OpenAeros, we strive to meet people where they are with the tools they need. Our mission of accessibility, inclusivity, and decentralized, open source collaboration makes the choice to pivot to using this as our primary social network an easy one. (1/2)
January 31, 2025 at 10:41 PM
At OpenAeros, we strive to meet people where they are with the tools they need. Our mission of accessibility, inclusivity, and decentralized, open source collaboration makes the choice to pivot to using this as our primary social network an easy one. (1/2)
Guess what? That video with the absurdly mixed audio from Christmas Eve? It's updated, audible, and full of extremely timely holiday 2024 tidings. Spend a few minutes relaxing in 2024 nostalgia with us and hear about our open Source approach here at OA.
💙❄️🎅
youtu.be/y4B73273x-8
💙❄️🎅
youtu.be/y4B73273x-8
Why We're an Open Source Company: [AUDIO CORRECTED] December Update Part 2
YouTube video by OpenAeros
youtu.be
January 22, 2025 at 9:38 PM
Guess what? That video with the absurdly mixed audio from Christmas Eve? It's updated, audible, and full of extremely timely holiday 2024 tidings. Spend a few minutes relaxing in 2024 nostalgia with us and hear about our open Source approach here at OA.
💙❄️🎅
youtu.be/y4B73273x-8
💙❄️🎅
youtu.be/y4B73273x-8
Happy Holidays from the team at OA! This xmas eve, we're chatting open source ethos, our love for the community, and... christmas pudding? Come for the debrief stay for the blooper reel -- or last week's CPC update ❄️🌲🕯️
youtu.be/kXC-iiBMejU
youtu.be/kXC-iiBMejU
Why We're an Open Source Company: December Update Part 2
YouTube video by OpenAeros
youtu.be
December 24, 2024 at 7:11 PM
Happy Holidays from the team at OA! This xmas eve, we're chatting open source ethos, our love for the community, and... christmas pudding? Come for the debrief stay for the blooper reel -- or last week's CPC update ❄️🌲🕯️
youtu.be/kXC-iiBMejU
youtu.be/kXC-iiBMejU
It’s been a long road but we are so excited to share our progress on the world’s first open source, low-cost, condensation particle counter! What is it and why should you care? @masknerd.bsky.social explains why this CPC is a BFD.
youtu.be/OxQSAvvOpw4
youtu.be/OxQSAvvOpw4
OpenCPC Update - January 2024
OpenCPC is the world's first open source condensation particle counter. At OpenAeros we believe that an open source model combined with innovative ideas ca...
youtu.be
January 10, 2024 at 8:44 PM
It’s been a long road but we are so excited to share our progress on the world’s first open source, low-cost, condensation particle counter! What is it and why should you care? @masknerd.bsky.social explains why this CPC is a BFD.
youtu.be/OxQSAvvOpw4
youtu.be/OxQSAvvOpw4