| ▲ | fooblaster 2 hours ago | |
So is this all bullshit? | ||
| ▲ | thomasmg an hour ago | parent [-] | |
Lacking a large study, we can't know. Of course the CO2 meter companies benefit if people believe it is true. | ||
| ▲ | fooblaster 2 hours ago | |
So is this all bullshit? | ||
| ▲ | thomasmg an hour ago | parent [-] | |
Lacking a large study, we can't know. Of course the CO2 meter companies benefit if people believe it is true. | ||