The source of carbon dioxide in the home is numerous. When the stove in the room burns, it produces carbon dioxide. Burning with firewood and coal, in the stove, the tongue of the fire licks, and the oxygen and carbon are combined, so this gas is generated and pervades the room.
When people are in the room, they breathe and breathe, which is also the source of carbon dioxide. The lungs clear the air, exhale turbid air, and exhale air, which contains a lot of carbon dioxide. Living in a room in groups, between people's breaths, carbon dioxide gradually accumulates.
Furthermore, when all kinds of electrical appliances are running, they may also generate carbon dioxide. Although the amount is small, it cannot be ignored over time. For example, refrigerators and air conditioners operate on electricity, and the process of power generation involves fuel combustion, which indirectly causes carbon dioxide to be born in the house.
Flowers and green plants perform photosynthesis during the day, absorb carbon dioxide and release oxygen; however, there is no light at night, and they perform respiration and spit carbon dioxide. If indoor green plants multiply, the amount of carbon dioxide at night may increase.
If you want to reduce the accumulation of carbon dioxide at home, you should make the room usually ventilated to make the turbid gas dissipate outside. Choosing clean energy and using less firewood and coal can reduce the carbon dioxide generated by combustion. And it is also beneficial to use electrical appliances rationally and shut down in time.