#aqi — Public Fediverse posts

That's smoke. Sigh.
#aqi #wildfires #photography

That's smoke. Sigh.
#aqi #wildfires #photography

An Easy-to-Build #CorsiRosenthalBox Using Modular #PCFan Systems

Jim Rosenthal
October 21, 2023

"The first Corsi-Rosenthal Box was built in August of 2020. It was presented as an #OpenSource' concept so that as many people as possible could have low-cost cleaner, safer indoor air. It is based on sound engineering principles, but it is really very simple. Use 4 (or 5) MERV 13 filters in a 'box' configuration with a box fan. The best thing is – it works! Consequently, many thousands have been made all over the world.

It has also been very enjoyable to see the continuous stream of ingenuity, creativity, and knowledge that has been expended to create a 'better' Corsi-Rosenthal Box. Much of this was out of necessity since many countries in the world do not have the same filters and fans as we have in North America. Many really smart and creative people have developed designs of the CR Box concept that work with the fans and filters available in their countries.

We have also had many people in North America who have contributed to the development of a “better mousetrap” of a DIY air cleaner. For effectiveness and low cost, it is very hard to beat the original box fan and “box” of filters design. But there have been many interesting modifications that have been shown to provide some real benefits. The most interesting of these is the use of PC fans to replace the box fan. The PC fans have the advantages of low noise and low energy usage but are not as economical or as easy to construct.

Here is another alternative – modular PC fan systems. A company by the name of AC Infinity (www.acinfinity.com) makes them. Their primary uses are for audio-visual cabinets and indoor horticulture. However, they provide low noise, high air flow and low power usage. In other words, they should work for Corsi-Rosenthal boxes. My initial tests confirm this conclusion. "

Note: I am not finding the fans on the AC Infinity website. I have found computer fans that can do the job on eBay and Amazon.

Learn more:
https://www.texairfilters.com/an-easy-to-build-corsi-rosenthal-box-using-modular-pc-fan-systems/

#SolarPunkSunday #CleanAir #WildfireSmoke #WildfireHaze #AQI #AirQuality #WildfireSeason #Wildfires #DIY #CRBoxes

An Easy-to-Build #CorsiRosenthalBox Using Modular #PCFan Systems

Jim Rosenthal
October 21, 2023

"The first Corsi-Rosenthal Box was built in August of 2020. It was presented as an #OpenSource' concept so that as many people as possible could have low-cost cleaner, safer indoor air. It is based on sound engineering principles, but it is really very simple. Use 4 (or 5) MERV 13 filters in a 'box' configuration with a box fan. The best thing is – it works! Consequently, many thousands have been made all over the world.

It has also been very enjoyable to see the continuous stream of ingenuity, creativity, and knowledge that has been expended to create a 'better' Corsi-Rosenthal Box. Much of this was out of necessity since many countries in the world do not have the same filters and fans as we have in North America. Many really smart and creative people have developed designs of the CR Box concept that work with the fans and filters available in their countries.

We have also had many people in North America who have contributed to the development of a “better mousetrap” of a DIY air cleaner. For effectiveness and low cost, it is very hard to beat the original box fan and “box” of filters design. But there have been many interesting modifications that have been shown to provide some real benefits. The most interesting of these is the use of PC fans to replace the box fan. The PC fans have the advantages of low noise and low energy usage but are not as economical or as easy to construct.

Here is another alternative – modular PC fan systems. A company by the name of AC Infinity (www.acinfinity.com) makes them. Their primary uses are for audio-visual cabinets and indoor horticulture. However, they provide low noise, high air flow and low power usage. In other words, they should work for Corsi-Rosenthal boxes. My initial tests confirm this conclusion. "

Note: I am not finding the fans on the AC Infinity website. I have found computer fans that can do the job on eBay and Amazon.

Learn more:
https://www.texairfilters.com/an-easy-to-build-corsi-rosenthal-box-using-modular-pc-fan-systems/

#SolarPunkSunday #CleanAir #WildfireSmoke #WildfireHaze #AQI #AirQuality #WildfireSeason #Wildfires #DIY #CRBoxes

An Easy-to-Build #CorsiRosenthalBox Using Modular #PCFan Systems

Jim Rosenthal
October 21, 2023

"The first Corsi-Rosenthal Box was built in August of 2020. It was presented as an #OpenSource' concept so that as many people as possible could have low-cost cleaner, safer indoor air. It is based on sound engineering principles, but it is really very simple. Use 4 (or 5) MERV 13 filters in a 'box' configuration with a box fan. The best thing is – it works! Consequently, many thousands have been made all over the world.

It has also been very enjoyable to see the continuous stream of ingenuity, creativity, and knowledge that has been expended to create a 'better' Corsi-Rosenthal Box. Much of this was out of necessity since many countries in the world do not have the same filters and fans as we have in North America. Many really smart and creative people have developed designs of the CR Box concept that work with the fans and filters available in their countries.

We have also had many people in North America who have contributed to the development of a “better mousetrap” of a DIY air cleaner. For effectiveness and low cost, it is very hard to beat the original box fan and “box” of filters design. But there have been many interesting modifications that have been shown to provide some real benefits. The most interesting of these is the use of PC fans to replace the box fan. The PC fans have the advantages of low noise and low energy usage but are not as economical or as easy to construct.

Here is another alternative – modular PC fan systems. A company by the name of AC Infinity (www.acinfinity.com) makes them. Their primary uses are for audio-visual cabinets and indoor horticulture. However, they provide low noise, high air flow and low power usage. In other words, they should work for Corsi-Rosenthal boxes. My initial tests confirm this conclusion. "

Note: I am not finding the fans on the AC Infinity website. I have found computer fans that can do the job on eBay and Amazon.

Learn more:
https://www.texairfilters.com/an-easy-to-build-corsi-rosenthal-box-using-modular-pc-fan-systems/

#SolarPunkSunday #CleanAir #WildfireSmoke #WildfireHaze #AQI #AirQuality #WildfireSeason #Wildfires #DIY #CRBoxes

An Easy-to-Build #CorsiRosenthalBox Using Modular #PCFan Systems

Jim Rosenthal
October 21, 2023

"The first Corsi-Rosenthal Box was built in August of 2020. It was presented as an #OpenSource' concept so that as many people as possible could have low-cost cleaner, safer indoor air. It is based on sound engineering principles, but it is really very simple. Use 4 (or 5) MERV 13 filters in a 'box' configuration with a box fan. The best thing is – it works! Consequently, many thousands have been made all over the world.

It has also been very enjoyable to see the continuous stream of ingenuity, creativity, and knowledge that has been expended to create a 'better' Corsi-Rosenthal Box. Much of this was out of necessity since many countries in the world do not have the same filters and fans as we have in North America. Many really smart and creative people have developed designs of the CR Box concept that work with the fans and filters available in their countries.

We have also had many people in North America who have contributed to the development of a “better mousetrap” of a DIY air cleaner. For effectiveness and low cost, it is very hard to beat the original box fan and “box” of filters design. But there have been many interesting modifications that have been shown to provide some real benefits. The most interesting of these is the use of PC fans to replace the box fan. The PC fans have the advantages of low noise and low energy usage but are not as economical or as easy to construct.

Here is another alternative – modular PC fan systems. A company by the name of AC Infinity (www.acinfinity.com) makes them. Their primary uses are for audio-visual cabinets and indoor horticulture. However, they provide low noise, high air flow and low power usage. In other words, they should work for Corsi-Rosenthal boxes. My initial tests confirm this conclusion. "

Note: I am not finding the fans on the AC Infinity website. I have found computer fans that can do the job on eBay and Amazon.

Learn more:
https://www.texairfilters.com/an-easy-to-build-corsi-rosenthal-box-using-modular-pc-fan-systems/

#SolarPunkSunday #CleanAir #WildfireSmoke #WildfireHaze #AQI #AirQuality #WildfireSeason #Wildfires #DIY #CRBoxes

An Easy-to-Build #CorsiRosenthalBox Using Modular #PCFan Systems

Jim Rosenthal
October 21, 2023

"The first Corsi-Rosenthal Box was built in August of 2020. It was presented as an #OpenSource' concept so that as many people as possible could have low-cost cleaner, safer indoor air. It is based on sound engineering principles, but it is really very simple. Use 4 (or 5) MERV 13 filters in a 'box' configuration with a box fan. The best thing is – it works! Consequently, many thousands have been made all over the world.

It has also been very enjoyable to see the continuous stream of ingenuity, creativity, and knowledge that has been expended to create a 'better' Corsi-Rosenthal Box. Much of this was out of necessity since many countries in the world do not have the same filters and fans as we have in North America. Many really smart and creative people have developed designs of the CR Box concept that work with the fans and filters available in their countries.

We have also had many people in North America who have contributed to the development of a “better mousetrap” of a DIY air cleaner. For effectiveness and low cost, it is very hard to beat the original box fan and “box” of filters design. But there have been many interesting modifications that have been shown to provide some real benefits. The most interesting of these is the use of PC fans to replace the box fan. The PC fans have the advantages of low noise and low energy usage but are not as economical or as easy to construct.

Here is another alternative – modular PC fan systems. A company by the name of AC Infinity (www.acinfinity.com) makes them. Their primary uses are for audio-visual cabinets and indoor horticulture. However, they provide low noise, high air flow and low power usage. In other words, they should work for Corsi-Rosenthal boxes. My initial tests confirm this conclusion. "

Note: I am not finding the fans on the AC Infinity website. I have found computer fans that can do the job on eBay and Amazon.

Learn more:
https://www.texairfilters.com/an-easy-to-build-corsi-rosenthal-box-using-modular-pc-fan-systems/

#SolarPunkSunday #CleanAir #WildfireSmoke #WildfireHaze #AQI #AirQuality #WildfireSeason #Wildfires #DIY #CRBoxes

YAY. Still Unhealthy, but I like the trend.
#Chesapeake #Smoke #AQI #ThanksExxon

YAY. Still Unhealthy, but I like the trend.
#Chesapeake #Smoke #AQI #ThanksExxon

YAY. Still Unhealthy, but I like the trend.
#Chesapeake #Smoke #AQI #ThanksExxon

YAY. Still Unhealthy, but I like the trend.
#Chesapeake #Smoke #AQI #ThanksExxon

YAY. Still Unhealthy, but I like the trend.
#Chesapeake #Smoke #AQI #ThanksExxon

July 17, 2026 @ 18:42 Good evening family & friends! Well, between the smoke/air quality and the extreme heat, it has been a strange week. While the air quality was up in the 460s yesterday, today we're in the upper 200s. And while the heat index was over 100°F much of the week, late yesterday it went down to 70°F. By this afternoon it was starting to feel a little more normal, though the air is still smoky outside. Anyway, we've had our youngest grand here all day, and she's always fun. The middle one, who is a preteen, arrived a little while ago and has been in their room with door closed since she arrived; she is a preteen and spends most of her time in there. Go figure. We won't be seeing Leelan today. Other than spending time with Luna I had a nap, ate some leftovers earlier, and that's pretty much my day. I'm about to make dinner so this is where I will say good-night, and I will see you tomorrow❣️🙇‍♀️🥱🛌🌛

chia.owly.net/aint-that-the-truth ~ chia.owly.net/video-of-the-day ~ chiachow.net/what-i-eat
https://chia.owly.net/bojack-the-pibble update

#Dogs #DogsOfMastodon #keto #MiWx #AQI #AirQuality

July 17, 2026 @ 18:42 Good evening family & friends! Well, between the smoke/air quality and the extreme heat, it has been a strange week. While the air quality was up in the 460s yesterday, today we're in the upper 200s. And while the heat index was over 100°F much of the week, late yesterday it went down to 70°F. By this afternoon it was starting to feel a little more normal, though the air is still smoky outside. Anyway, we've had our youngest grand here all day, and she's always fun. The middle one, who is a preteen, arrived a little while ago and has been in their room with door closed since she arrived; she is a preteen and spends most of her time in there. Go figure. We won't be seeing Leelan today. Other than spending time with Luna I had a nap, ate some leftovers earlier, and that's pretty much my day. I'm about to make dinner so this is where I will say good-night, and I will see you tomorrow❣️🙇‍♀️🥱🛌🌛

chia.owly.net/aint-that-the-truth ~ chia.owly.net/video-of-the-day ~ chiachow.net/what-i-eat
https://chia.owly.net/bojack-the-pibble update

#Dogs #DogsOfMastodon #keto #MiWx #AQI #AirQuality

CODE PURPLE

DC: Code Purple: Notice of Very Unhealthy Air

"The Metropolitan Washington Council of Governments (COG) has issued a Code Purple Air Quality Health Advisory in the metropolitan Washington region on July 17. Current air quality conditions have reached Code Purple, very unhealthy for everyone. Smoke coming from wildfires in Canada is contributing to the increased levels of fine particle pollution.

Sensitive groups like people with heart or lung disease like asthma or emphysema, older adults, and children should avoid all physical activity outdoors.
Healthy individuals should avoid long or intense outdoor activities.
"

https://www.mwcog.org/newsroom/2026/07/17/code-purple-notice-of-very-unhealthy-air-air-quality/

#DCwx #aqi #smoke #wildfires

CODE PURPLE

DC: Code Purple: Notice of Very Unhealthy Air

"The Metropolitan Washington Council of Governments (COG) has issued a Code Purple Air Quality Health Advisory in the metropolitan Washington region on July 17. Current air quality conditions have reached Code Purple, very unhealthy for everyone. Smoke coming from wildfires in Canada is contributing to the increased levels of fine particle pollution.

Sensitive groups like people with heart or lung disease like asthma or emphysema, older adults, and children should avoid all physical activity outdoors.
Healthy individuals should avoid long or intense outdoor activities.
"

https://www.mwcog.org/newsroom/2026/07/17/code-purple-notice-of-very-unhealthy-air-air-quality/

#DCwx #aqi #smoke #wildfires

For anyone who would like real time #AirQuality data from midtown #Toronto, here's my Air Gradient data. Monitor is mounted on my balcony just north of Yonge and Eglinton.

Current Numbers: https://app.airgradient.com/display/7E13bWZqNK/classic

History/Charts: https://app.airgradient.com/display/7E13bWZqNK/charts

(To be clear re: privacy, I can't see if/when anybody is accessing this information.)

#Wildfire #Smoke #FireSmoke #AQI #TorontoAirQuality

For anyone who would like real time #AirQuality data from midtown #Toronto, here's my Air Gradient data. Monitor is mounted on my balcony just north of Yonge and Eglinton.

Current Numbers: https://app.airgradient.com/display/7E13bWZqNK/classic

History/Charts: https://app.airgradient.com/display/7E13bWZqNK/charts

(To be clear re: privacy, I can't see if/when anybody is accessing this information.)

#Wildfire #Smoke #FireSmoke #AQI #TorontoAirQuality

TIL there is a code maroon

#aqi #CodePurple #CodeMaroon

TIL there is a code maroon

#aqi #CodePurple #CodeMaroon

Fine, go outside and breath it in....please...

#AQI #OntarioWildfires #ClimateCrisis #Fascists #Politics

Fine, go outside and breath it in....please...

#AQI #OntarioWildfires #ClimateCrisis #Fascists #Politics

One of the more stupid things I have seen - an older man riding in a convertible with the top down (with an aqi of 164).
#smoke #wildfires #aqi #midlifecrisis

One of the more stupid things I have seen - an older man riding in a convertible with the top down (with an aqi of 164).
#smoke #wildfires #aqi #midlifecrisis

So being out all day in AQI 150 is supposed to be like smoking 7-9 cigarettes a day. 👀

#ClimateChange #AQI

https://patch.com/new-york/new-york-city/doctors-break-down-wildfire-smoke-dangers-nyc

So being out all day in AQI 150 is supposed to be like smoking 7-9 cigarettes a day. 👀

#ClimateChange #AQI

https://patch.com/new-york/new-york-city/doctors-break-down-wildfire-smoke-dangers-nyc

Teenager saw some tiktok video where a woman brought her chickens inside because of the #AQI.

Hard no on that one folks.

We're still over 200, and predicted to rise before falling, but they're *chickens*.

I'm not even sure what else there is to say.

Teenager saw some tiktok video where a woman brought her chickens inside because of the #AQI.

Hard no on that one folks.

We're still over 200, and predicted to rise before falling, but they're *chickens*.

I'm not even sure what else there is to say.

Finally got some filters so I can get my house air cleaned out a little.

It isn't too bad out other than the smoke. The smoke is really bad very visible.

#corsirosenthal #codered #aqi

Finally got some filters so I can get my house air cleaned out a little.

It isn't too bad out other than the smoke. The smoke is really bad very visible.

#corsirosenthal #codered #aqi

Outside mowing the lawn. AQI: 172. Bad, but not as bad as some of y’all. It had to be done. It’s not like I’m running. Just walking behind a mower. Can’t be too bad. I smoke a pipe now and then and we have campfires in the fall.

#AQI #Wildfires

Outside mowing the lawn. AQI: 172. Bad, but not as bad as some of y’all. It had to be done. It’s not like I’m running. Just walking behind a mower. Can’t be too bad. I smoke a pipe now and then and we have campfires in the fall.

#AQI #Wildfires

Day trip to campground canceled.
They're also above 150, and N-95 style masks can only stop 90% of PM2.5 particles.
So even sunbathing, a low impact outdoor activity, could come with symptoms and particle adoption.
No poolside meditations #today
#Pennsylvania #NewYorkCity #NYC #AQI #AirQuality #Index #fine #particulate #matter #PMI #wildfire #smoke #GlobalWarming #nationalize #OilAndGas #companies #stop #FossilFuels

Air quality this morning (7/17/26) near the Great Lakes.

https://map.purpleair.com/air-quality-standards-us-epa-aqi?opt=%2F1%2Flp%2Fa10%2Fp604800%2FcC0#4.41/43.58/-88.56

#aqi #smoke

Air quality this morning (7/17/26) near the Great Lakes.

https://map.purpleair.com/air-quality-standards-us-epa-aqi?opt=%2F1%2Flp%2Fa10%2Fp604800%2FcC0#4.41/43.58/-88.56

#aqi #smoke

RE: https://backend.newsmast.org/@newsmast/116935315152905374

I'm reading this event as "Left vs Right" , but I'm more concerned about the air they will be breathing and how FIFA don't give a fuck about the health of their players, clearly.

When's the Final? Tomorrow? Will the air in New York be clean by then?

#WorldCup2026 #AQI #ClimateCrisis #FIFA

RE: https://backend.newsmast.org/@newsmast/116935315152905374

I'm reading this event as "Left vs Right" , but I'm more concerned about the air they will be breathing and how FIFA don't give a fuck about the health of their players, clearly.

When's the Final? Tomorrow? Will the air in New York be clean by then?

#WorldCup2026 #AQI #ClimateCrisis #FIFA

No odor; 😊
Beautifully tinted everything (a bit like the golden hour effect); 😯

#AQI 240 😵

No odor; 😊
Beautifully tinted everything (a bit like the golden hour effect); 😯

#AQI 240 😵

@ai6yr
Did Cumberland, MD build a dome?

#aqi #USwx

@ai6yr
Did Cumberland, MD build a dome?

#aqi #USwx

Air Quality Alerts tonight... #aqi #USwx

Air Quality Alerts tonight... #aqi #USwx

RE: https://mastodon.social/@weatherwest/116932389707759064

I fear its about to be a very very bad week for air quality in the PNW. I am showing high 90s next week even possible 100 on Wednesday on my weather app. 🫣

#PNW #AQI #WildFires

RE: https://mastodon.social/@weatherwest/116932389707759064

I fear its about to be a very very bad week for air quality in the PNW. I am showing high 90s next week even possible 100 on Wednesday on my weather app. 🫣

#PNW #AQI #WildFires

There should be a sunset there behind me
#Chicago #AQI #SelfPortrait

There should be a sunset there behind me
#Chicago #AQI #SelfPortrait

#AQI dropped down below 120 a few hours ago.

Back up over 150 now.
🫤

#AQI dropped down below 120 a few hours ago.

Back up over 150 now.
🫤

Burn down all fossil fuel infrastructure. #ClimateChange #WildfireSmoke #AQI