LET'S AIR
@nousaerons.bsky.social
News, scientific mediation and infographics on ventilation & indoor air quality.
letsair.org
letsair.org
Generations of pupils have learned in stuffy classrooms filled with recycled air, but a Hampshire school is now breathing new life into the way lessons are taught. The impact of installing HEPA filters has been striking.
Poke @safeairschoolsuk.bsky.social
www.portsmouth.co.uk/education/th...
Poke @safeairschoolsuk.bsky.social
www.portsmouth.co.uk/education/th...
The 5p Solution: How clean air is transforming attendance and learning in one Hampshire school
Generations of pupils have learned in stuffy classrooms filled with recycled air, but a Hampshire school is now breathing new life into the way lessons are taught.
www.portsmouth.co.uk
February 4, 2026 at 7:14 AM
Generations of pupils have learned in stuffy classrooms filled with recycled air, but a Hampshire school is now breathing new life into the way lessons are taught. The impact of installing HEPA filters has been striking.
Poke @safeairschoolsuk.bsky.social
www.portsmouth.co.uk/education/th...
Poke @safeairschoolsuk.bsky.social
www.portsmouth.co.uk/education/th...
Vaccines effectively protect against many diseases that are transmitted through the air we breathe. Without vaccines, these diseases will spread even more widely because our schools, hospitals, and public places are much less well ventilated than they were a century ago.
February 2, 2026 at 7:03 PM
Vaccines effectively protect against many diseases that are transmitted through the air we breathe. Without vaccines, these diseases will spread even more widely because our schools, hospitals, and public places are much less well ventilated than they were a century ago.
JaspAir, our 🐧 CO2 monitor, is designed to be simple, robust, and cheap. A pre-production run of 5 units is underway. We hope to deliver the first JaspAir units to beta-testing teachers in February.
January 29, 2026 at 1:08 PM
JaspAir, our 🐧 CO2 monitor, is designed to be simple, robust, and cheap. A pre-production run of 5 units is underway. We hope to deliver the first JaspAir units to beta-testing teachers in February.
In a kitchen too, JaspAir – our CO2 monitor penguin – can help you know when to ventilate. Red means it's time to ventilate.
January 28, 2026 at 8:22 PM
In a kitchen too, JaspAir – our CO2 monitor penguin – can help you know when to ventilate. Red means it's time to ventilate.
The new SenseAir S88 CO2 sensor is now integrated into JaspAir, our CO2 monitor for schools.
The label "v11" means that this is the 11th version of JaspAir that we are improving to allow for small-scale production at a lower cost.
The label "v11" means that this is the 11th version of JaspAir that we are improving to allow for small-scale production at a lower cost.
January 26, 2026 at 6:18 PM
The new SenseAir S88 CO2 sensor is now integrated into JaspAir, our CO2 monitor for schools.
The label "v11" means that this is the 11th version of JaspAir that we are improving to allow for small-scale production at a lower cost.
The label "v11" means that this is the 11th version of JaspAir that we are improving to allow for small-scale production at a lower cost.
Peaceful armies of penguins are preparing to help schoolchildren around the world better ventilate their classrooms, for their comfort and health.
More information about JaspAir, our CO2 monitor, can be found at letsair.org/jaspair
More information about JaspAir, our CO2 monitor, can be found at letsair.org/jaspair
January 22, 2026 at 5:24 PM
Peaceful armies of penguins are preparing to help schoolchildren around the world better ventilate their classrooms, for their comfort and health.
More information about JaspAir, our CO2 monitor, can be found at letsair.org/jaspair
More information about JaspAir, our CO2 monitor, can be found at letsair.org/jaspair
New Report From American Lung Association (@lungusa.bsky.social) / Win-Win for Lung Health : How Policies on Indoor Air Quality Make Schools Healthier and More Energy Efficient. www.lung.org/clean-air/in...
January 22, 2026 at 7:06 AM
New Report From American Lung Association (@lungusa.bsky.social) / Win-Win for Lung Health : How Policies on Indoor Air Quality Make Schools Healthier and More Energy Efficient. www.lung.org/clean-air/in...
JaspAir, our CO2 monitor, poses in front of a didactic mock-up explaining the principle of a dual-flow mechanical ventilation system.
January 21, 2026 at 4:15 PM
JaspAir, our CO2 monitor, poses in front of a didactic mock-up explaining the principle of a dual-flow mechanical ventilation system.
JaspAir, our CO2 monitor for schools, indicates that indoor air quality is excellent in this room. We are waiting for a new sensor (Senseair S88) which is much less expensive to reduce manufacturing costs.
January 20, 2026 at 2:21 PM
JaspAir, our CO2 monitor for schools, indicates that indoor air quality is excellent in this room. We are waiting for a new sensor (Senseair S88) which is much less expensive to reduce manufacturing costs.
JaspAir: the user-friendly CO2 monitor for schools. The latest version of its printed circuit board is currently being tested.
January 19, 2026 at 1:42 PM
JaspAir: the user-friendly CO2 monitor for schools. The latest version of its printed circuit board is currently being tested.
Scaling a school district-wide indoor air quality sensor network. In 2022, @bostonschools.boston.gov launched an indoor air quality monitoring initiative that has made the district a nationally and globally recognized leader in creating healthier school environments.
www.usgbc.org/articles/sca...
www.usgbc.org/articles/sca...
Scaling a school district-wide indoor air quality sensor network | U.S. Green Building Council
Explore lessons from Boston Public Schools on IAQ sensor planning, deployment and data management.
www.usgbc.org
January 14, 2026 at 6:16 AM
Scaling a school district-wide indoor air quality sensor network. In 2022, @bostonschools.boston.gov launched an indoor air quality monitoring initiative that has made the district a nationally and globally recognized leader in creating healthier school environments.
www.usgbc.org/articles/sca...
www.usgbc.org/articles/sca...
By measuring the CO2 level in a room, you can determine the level of investment made in its ventilation and therefore the importance given to the comfort and health of its occupants. Our interpretation is below.
January 10, 2026 at 1:09 PM
By measuring the CO2 level in a room, you can determine the level of investment made in its ventilation and therefore the importance given to the comfort and health of its occupants. Our interpretation is below.
New research paper : "Metagenomic profiling of airborne microbial communities from aircraft filters and face masks".
Airborne microbial communities play crucial roles in public health and pathogen transmission. This team has done a tremendous job.
link.springer.com/article/10.1...
Airborne microbial communities play crucial roles in public health and pathogen transmission. This team has done a tremendous job.
link.springer.com/article/10.1...
Metagenomic profiling of airborne microbial communities from aircraft filters and face masks - Microbiome
Background Airborne microbial communities, although often challenging to study due to low biomass, play crucial roles in public health and pathogen transmission. Through shotgun metagenomics, this stu...
link.springer.com
January 8, 2026 at 8:43 AM
New research paper : "Metagenomic profiling of airborne microbial communities from aircraft filters and face masks".
Airborne microbial communities play crucial roles in public health and pathogen transmission. This team has done a tremendous job.
link.springer.com/article/10.1...
Airborne microbial communities play crucial roles in public health and pathogen transmission. This team has done a tremendous job.
link.springer.com/article/10.1...
JaspAir, our CO2 monitor, enjoys the Parisian snow, which reminds it of its homeland. Its jelly is green because it's outdoors, where CO2 levels are low. Inside, it changes color to alert you when it's time to ventilate the room to protect your health and improve your comfort.
January 7, 2026 at 2:47 PM
JaspAir, our CO2 monitor, enjoys the Parisian snow, which reminds it of its homeland. Its jelly is green because it's outdoors, where CO2 levels are low. Inside, it changes color to alert you when it's time to ventilate the room to protect your health and improve your comfort.
Respiratory infections are more common in winter and extreme cold can affect your susceptibility to viruses, but the main factor in infection is the fact that we spend more time indoors, in poorly ventilated places and in close contact with other people.
www.theguardian.com/lifeandstyle...
www.theguardian.com/lifeandstyle...
Is it true that … going out when it is chilly can make you catch a cold?
Respiratory infections are more common in winter, but it’s largely because we spend more time indoors in close contact with other people
www.theguardian.com
January 5, 2026 at 10:10 AM
Respiratory infections are more common in winter and extreme cold can affect your susceptibility to viruses, but the main factor in infection is the fact that we spend more time indoors, in poorly ventilated places and in close contact with other people.
www.theguardian.com/lifeandstyle...
www.theguardian.com/lifeandstyle...
We wish you a wonderful 2026, filled with clean air, so you can fully enjoy the new year in good health.
This year, we will continue to expand the resources available on letsair.org: news, infographics, and scientific analyses on indoor air renewal.
This year, we will continue to expand the resources available on letsair.org: news, infographics, and scientific analyses on indoor air renewal.
January 5, 2026 at 9:23 AM
We wish you a wonderful 2026, filled with clean air, so you can fully enjoy the new year in good health.
This year, we will continue to expand the resources available on letsair.org: news, infographics, and scientific analyses on indoor air renewal.
This year, we will continue to expand the resources available on letsair.org: news, infographics, and scientific analyses on indoor air renewal.
JaspAir, our CO2 monitor, is taking a few days off to enjoy winter sports. No doubt the CO2 levels in the pure mountain air will be excellent.
December 18, 2025 at 10:11 AM
JaspAir, our CO2 monitor, is taking a few days off to enjoy winter sports. No doubt the CO2 levels in the pure mountain air will be excellent.
How new science, real-time monitoring, and smarter engineering are reshaping school air quality – and what it means for kids’ health and absenteeism.
A very good summary article on Indoor Air Quality in Schools.
www.achrnews.com/articles/165...
A very good summary article on Indoor Air Quality in Schools.
www.achrnews.com/articles/165...
How Contractors Can Lead Air Quality Improvement in Schools
A wave of groundbreaking research in Colorado is revealing how targeted measurement and interventions can transform air quality in schools, reduce illness, and help every child breathe easier.
www.achrnews.com
December 17, 2025 at 6:49 AM
How new science, real-time monitoring, and smarter engineering are reshaping school air quality – and what it means for kids’ health and absenteeism.
A very good summary article on Indoor Air Quality in Schools.
www.achrnews.com/articles/165...
A very good summary article on Indoor Air Quality in Schools.
www.achrnews.com/articles/165...
Work in progress on JaspAir, our CO2 monitor for schools: all small parts must be screwed in to resist possible handling by children.
December 15, 2025 at 8:37 AM
Work in progress on JaspAir, our CO2 monitor for schools: all small parts must be screwed in to resist possible handling by children.
Super JaspAir, the kids will love it! (Teachers, parents, grandparents... too!)
December 10, 2025 at 3:44 PM
Super JaspAir, the kids will love it! (Teachers, parents, grandparents... too!)
Hi BBC,
Thank you for this article on the spread of the flu in UK schools. But could you change the image illustrating it? The flu is a virus that is mainly airborne. Vaccination, masks and good ventilation are the most effective means of prevention.
www.bbc.com/news/article...
Thank you for this article on the spread of the flu in UK schools. But could you change the image illustrating it? The flu is a virus that is mainly airborne. Vaccination, masks and good ventilation are the most effective means of prevention.
www.bbc.com/news/article...
Some schools disrupted amid rise in flu cases
Flu is on the rise, but ministers say schools should only close in extreme circumstances.
www.bbc.com
December 10, 2025 at 2:39 PM
Hi BBC,
Thank you for this article on the spread of the flu in UK schools. But could you change the image illustrating it? The flu is a virus that is mainly airborne. Vaccination, masks and good ventilation are the most effective means of prevention.
www.bbc.com/news/article...
Thank you for this article on the spread of the flu in UK schools. But could you change the image illustrating it? The flu is a virus that is mainly airborne. Vaccination, masks and good ventilation are the most effective means of prevention.
www.bbc.com/news/article...
Hi @BBC,
Thank you for this article on the spread of the flu in UK schools. But could you change the image illustrating it? The flu is a virus that is mainly airborne. Vaccination, masks and good ventilation are the most effective means of prevention.
www.bbc.com/news/article...
Thank you for this article on the spread of the flu in UK schools. But could you change the image illustrating it? The flu is a virus that is mainly airborne. Vaccination, masks and good ventilation are the most effective means of prevention.
www.bbc.com/news/article...
Some schools disrupted amid rise in flu cases
Flu is on the rise, but ministers say schools should only close in extreme circumstances.
www.bbc.com
December 10, 2025 at 2:38 PM
Hi @BBC,
Thank you for this article on the spread of the flu in UK schools. But could you change the image illustrating it? The flu is a virus that is mainly airborne. Vaccination, masks and good ventilation are the most effective means of prevention.
www.bbc.com/news/article...
Thank you for this article on the spread of the flu in UK schools. But could you change the image illustrating it? The flu is a virus that is mainly airborne. Vaccination, masks and good ventilation are the most effective means of prevention.
www.bbc.com/news/article...
Our CO2 monitor, the JaspAir penguin, will be deployed at numerous sites in early 2026 to measure air renewal quality in schools - we hope. We are currently preparing its flight case, while finalizing the design details because the devil is in the details!
December 10, 2025 at 2:24 PM
Our CO2 monitor, the JaspAir penguin, will be deployed at numerous sites in early 2026 to measure air renewal quality in schools - we hope. We are currently preparing its flight case, while finalizing the design details because the devil is in the details!
Chickenpox, COVID-19, Influenza, Measles, Common cold, Rubella, Bronchiolitis, Smallpox, Whooping cough... There are many diseases that are transmitted through the air we breathe. JaspAir, our DIY CO2 monitor, can help reduce the risk of catching them.
letsair.org/jaspair
letsair.org/jaspair
JaspAir
JaspAir, the CO2 monitor
letsair.org
December 9, 2025 at 5:14 PM
Chickenpox, COVID-19, Influenza, Measles, Common cold, Rubella, Bronchiolitis, Smallpox, Whooping cough... There are many diseases that are transmitted through the air we breathe. JaspAir, our DIY CO2 monitor, can help reduce the risk of catching them.
letsair.org/jaspair
letsair.org/jaspair
Prolonged exposure in shared, poorly ventilated spaces, which potentially includes several infectious sources, drives respiratory virus transmission more than close contact. New evidence in a classroom study.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
The relative contribution of close-proximity contacts, shared classroom exposure and indoor air quality to respiratory virus transmission in schools - Nature Communications
The relative importance of close-proximity interactions, shared space and air quality to the transmission of respiratory viruses is not well understood. Here, the authors investigate this question by ...
www.nature.com
December 8, 2025 at 7:47 AM
Prolonged exposure in shared, poorly ventilated spaces, which potentially includes several infectious sources, drives respiratory virus transmission more than close contact. New evidence in a classroom study.
www.nature.com/articles/s41...
www.nature.com/articles/s41...