This is second time in a row I posted factual, on topic information and I am being downvoted. It is well known fact that oxygen level is lowest just before sunrise [1], [2]. In the first photo there is absolutely ridiculous amount of houseplants for such a small room so obviously CO2 levels before sunrise are concern. What are the numbers? Did they measured it. Few plants are fine but so many plants? I would do the measurement just to be safe.
Because you're linking measurements to small enclosed containers to try and make a point and it's simply nonsensical.
A small dog will put out significantly more CO2 sleeping beside your bed than all of those plants will. A person even more - if it was a single person, would you caution them against having another person sleep over due to co2 production? What if they were bringing in a third person to spice things up? Or more pets? Friends crashing on the couch downstairs?
We should pay more attention to CO2 levels than we do, especially in offices and particularly enclosed meeting rooms, but plants expire so little co2 in comparison to animals that there's really no reason to worry about them in anything regarding a normal situation.
[1] https://www.picotech.com/library/results/plant-measurements-... [2] https://www.quora.com/Is-the-level-of-oxygen-maximum-in-the-...