Can you get gas poisoning if you sleep in a room with a honeycomb coal stove at night?

I run a Guilin rice noodle shop. I sleep in a room with two coal stoves every night. What you should pay attention to is that the air in the room should be circulated, that is, the windows should be opened. One is enough, and the other is that the cover under your coal stove should not be too big, and the hole between the cover and the coal stove is just round. If you have two coals, they will not go out from 10 at night to 7: 00 the next morning. Note that even if it is too open, it will not be toxic, and you smell uncomfortable.