2 ms·
Lacking a large study, we can't know. Of course the CO2 meter companies benefit if people believe it is true.
by thomasmg 3mo ago
Lacking a large study, we can't know. Of course the CO2 meter companies benefit if people believe it is true.
- fooblaster 3mo agoThis is kind of a bummer. I have a nice co2 meter. another reason to be skeptical of everything.