🔥USA East Coast friends: if the #Wildfire smoke is thick in your area, build a Corsi-Rosenthal box filter. These are inexpensive to build and very effective, and they filter and exchange the air in your house very efficiently. We use them extensively here in the western US when the fire smoke is bad. See this resource for how to build one:

https://cleanaircrew.org/box-fan-filters/

#smoke
#airquality
#airfilters

DIY box fan filters – Corsi-Rosenthal box - Clean Air Crew

Also known as a Corsi-Rosenthal box, this DIY method of building your own air filter with MERV13 furnace filters and a box fan are an easy and cost-effective way to help clear indoor air from airborne virus particles, wildfire smoke, pollen, dust, and more! If you can seal a box, you can build one (or

Clean Air Crew - COVID19 transmission and prevention resources. Airborne transmission, masks, ventilation, filtration, school info, and more.
And keep a browser tab open to https://map.purpleair.com so you can monitor the air quality in your area. You should primarily be concerned about PM2.5. Do not stress about the VOC readings. Those measurements are still considered experimental/uncalibrated in Purple Air. #airquality #Wildfire #smoke
Real-Time Interactive Map by PurpleAir

Watch: With two minute updates, PurpleAir sensors are small, easy to install and require only power and WiFi.

PurpleAir
@bud_t Thank you for posting this!