I'm wondering if having a lot of plants in my bedroom could lead to dangerously high levels of CO2 at night. Is there a risk of harmful concentrations from them once the sun goes down?
3 Answers
Plants generally help reduce CO2 levels, so having them around is usually beneficial. Even though they do release some CO2 at night when they're not photosynthesizing, the amounts are minimal compared to the CO2 we exhale as humans. Just crack a window to let in some fresh air if you feel it’s necessary!
It's pretty unlikely that your plants are going to turn your room into a CO2 hotspot. They do take in CO2 and release oxygen during the day, and while they breathe out a little CO2 at night, it's not enough to cause harm. If you're really worried, maybe just grab a CO2 detector to be safe. Overall, I wouldn't stress about it too much!
Just to clarify, yes, plants do respire and release CO2 at night, but the levels are really low and shouldn't be a problem at all. You'd have to have a crazy number of plants for it to be a concern. Fresh air always helps, so opening a window is a great idea!