If 400ppm is too much what should it be?
Yes I know. I believe the get the average from the top of a mountain in Hawaii. I've had a CO2 monitor for years. And the average during summer waxes and wanes as the sun rise and the plants start working. Morning about an hour after dawn was the highest and 4-5 pm or so was the lowest. 350-650 every day as long as it wasn't windy.400 isnt too much..Whered you see that? That's avg.
I was locked out of a thread for asking this question. >>> At what CO2 level is acceptable?oh what is this your seqway into your real intention of this conversation?