#aqi — Public Fediverse posts

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

My #ArduinoNanoMatter #AQI device that I use to automate my aircon stopped working - if I restart or power cycled the unit - all #Homekit automations vanish.

So I tried to fix it using #ChatGPT that wrote the code. After 10 hours of fight I switched to #Claude.

Claude polished the code and proved it's a #HomePod mini bug. So I restored HomePod and it works again.

Conclusion: Claude seems smarter and better, but my gosh limits are tighter here than with #OpenAI 🤯

#arduino #diy #smarthome

My #ArduinoNanoMatter #AQI device that I use to automate my aircon stopped working - if I restart or power cycled the unit - all #Homekit automations vanish.

So I tried to fix it using #ChatGPT that wrote the code. After 10 hours of fight I switched to #Claude.

Claude polished the code and proved it's a #HomePod mini bug. So I restored HomePod and it works again.

Conclusion: Claude seems smarter and better, but my gosh limits are tighter here than with #OpenAI 🤯

#arduino #diy #smarthome

Here is why you should open your #windows whenever you can. On the left, is 2:05 PM when I’ve had the windows closed all day, the #CO2 levels in the house are high, indicating poor #ventilation. Now swipe to the right image, the levels have dropped to a third after leaving the windows open for over 2 hours, indicating excellent ventilation. High CO2 levels indoors can cause various #health issues including #tiredness, #headaches, #eye #irritation, #dizziness and/or #difficulty #concentrating, so please check your levels inside your house. I borrowed this CO2 monitor as well as an #AQI monitor from my local #library

Here is why you should open your #windows whenever you can. On the left, is 2:05 PM when I’ve had the windows closed all day, the #CO2 levels in the house are high, indicating poor #ventilation. Now swipe to the right image, the levels have dropped to a third after leaving the windows open for over 2 hours, indicating excellent ventilation. High CO2 levels indoors can cause various #health issues including #tiredness, #headaches, #eye #irritation, #dizziness and/or #difficulty #concentrating, so please check your levels inside your house. I borrowed this CO2 monitor as well as an #AQI monitor from my local #library

Here is why you should open your #windows whenever you can. On the left, is 2:05 PM when I’ve had the windows closed all day, the #CO2 levels in the house are high, indicating poor #ventilation. Now swipe to the right image, the levels have dropped to a third after leaving the windows open for over 2 hours, indicating excellent ventilation. High CO2 levels indoors can cause various #health issues including #tiredness, #headaches, #eye #irritation, #dizziness and/or #difficulty #concentrating, so please check your levels inside your house. I borrowed this CO2 monitor as well as an #AQI monitor from my local #library

Here is why you should open your #windows whenever you can. On the left, is 2:05 PM when I’ve had the windows closed all day, the #CO2 levels in the house are high, indicating poor #ventilation. Now swipe to the right image, the levels have dropped to a third after leaving the windows open for over 2 hours, indicating excellent ventilation. High CO2 levels indoors can cause various #health issues including #tiredness, #headaches, #eye #irritation, #dizziness and/or #difficulty #concentrating, so please check your levels inside your house. I borrowed this CO2 monitor as well as an #AQI monitor from my local #library

दिल्ली में जहरीली हवा पर भड़का सुप्रीम कोर्ट, पूछा – GRAP को कैसे लागू करेगा प्रशासन?

https://aliyesha.com/sub/articles/news/display/nd_sc_pollution_grap

#delhi #newdelhi #india #news #press #DelhiAirQuality #SupremeCourt #AirPollution #GRAP #EnvironmentalJustice #CleanAir #AQI #PollutionControl #AirMonitoring #ClimateAction #PublicHealth #IndiaNews #DelhiPollution #AirQualityManagement #EcoLaw #GreenIndia #UrbanEnvironment #AirQualityAlert #EnvironmentalPolicy

Enjoy tracker free reading with us. #privacy #privacymatters

I've used this website to track wildfires in British Columbia last year. US and Canada only, though... On the map right now, one can see there's a LOT of wildfires in #Alaska and part of #Yukon! Yikes!

https://fire.airnow.gov/

#AQI #Wildfires #Heatwave #Heatwaves #ClimateChange #GlobalHeating #ExtremeTemperatures
#GlobalWeather #WeatherWebsites
#WeatherResources #USWx #CanadianWx #WildfireWeather #ClimateChangeWeatherWheel

I've used this website to track wildfires in British Columbia last year. US and Canada only, though... On the map right now, one can see there's a LOT of wildfires in #Alaska and part of #Yukon! Yikes!

https://fire.airnow.gov/

#AQI #Wildfires #Heatwave #Heatwaves #ClimateChange #GlobalHeating #ExtremeTemperatures
#GlobalWeather #WeatherWebsites
#WeatherResources #USWx #CanadianWx #WildfireWeather #ClimateChangeWeatherWheel