How does a person use knowledge about plant respiration in their activities?

A person applies knowledge about plant respiration so that there is much more oxygen in the apartment. After all, everyone knows that plants have the peculiarity of absorbing carbon dioxide, producing oxygen, which is necessary for human life. It is worth noting the fact that it is undesirable to overdo it with the amount of vegetation. Also, some types of plants absorb radiation, which is also very beneficial for the human body. An example of such a plant is, for example, a cactus.