Using my CO2 sensor to prove masks are bad.

This is a short video that anyone can duplicate. CO2 sensors are widely available in many shapes sizes and reading range. Mine goes to 5,000 ppm which is the max exposure for an 8 hour day inside of 30 seconds. 30 seconds leaves a lot of that 8 hour day. If you have a mask on your child you are doing irreversible harm to them. I will make a second more detailed video this evening.