🧵 I made another #corsirosenthalbox air cleaner today for my wife's HS classroom. Our city is on fire with infections today, so I wanted to take the opportunity to show others how EASY it is to assemble something that can 🛑 COVID transmission in a classroom or home. 1/n All of the supplies can be found at Lowe's for $85. I upgraded the filters to MERV 14 (3M Filtrete 2500), so that added another $25. Four filters, a 20” box fan, roll of duct tape, and a sharp utility knife is all that's required. Here I have cut the top & bottom off the box. 2/n

🧵 Case rate continuing exponential acceleration in Johnson Co. KS today with 967 cases per 100K. Test positivity 22%. Students returned to class today after school board voted down mask requirement for students. We are on our own but not powerless.
1/# We have attempted to reduce the risk in my wife's classroom by monitoring CO2 levels which are an excellent proxy for how well the room is ventilated. Testing shows that the room has close to 0 air changes per hour as values climb through the day to over 1400 ppm. 2/# @AranetIoT

I am at the Roger Marshall town hall meeting in Olathe this morning. Standing room only, 175 or so white people in attendance. First questioner has opened with a prayer and now on crazy train about George Soros. RM throwing gasoline on the fire. Next Q talking about fluoride in the water supply. "People are being drugged without their consent."

I'm sending my Christmas wish to you tonight from Bartow Co., Ga. Their 14 day avg case rate per 100K is 🔺806🔺, the surrounding counties are over ⚡1,200⚡. 1/# I'm eating alone in my car because this county does not have a mask mandate. 9% of all students here are under full quarantine. 25% of the county schools have viral spread within the buildings. 2/#