The levels in my house for c02 is always around 700-1200 levels. Is there anything I can do besides opening my windows?
I tried opening my windows for 10-20min but all that does is bring it down and bring right back up in the rooms. I do not know what is causing it because the room is empty and it goes up so no one is breathing in there to cause it to increase. Whenever I feel funny or a heavy feeling on my head I know the c02 levels are up. Do I have to call an HVAC person for it or is there someone special I have to contact?