Back many years ago when I took biology, I was told that plants emit O2 during the daytime photosynthesis process. During the night, in the dark, they actually emit CO2, but in lower quantities. I hope my memory is serving me correctly here. This is why there was an “old wives tale” that said you shouldn’t sleep in closed rooms full of plants.
Hope this helps.
>>>This is why there was an “old wives tale” that said you shouldn’t sleep in closed rooms full of plants.
I never heard that one.
I did hear the old wives tale that you shouldn’t sleep in a closed room with a cat. The cat would take your breath away.
I think there was a Twilight Zone or Outer limits written about that tale.