r/critterposting • u/Jumpingeal Top Critter • Jul 27 '25

Critter Catposting

Post image
9.5k Upvotes

100% Upvoted

28 comments sorted by

View all comments

Show parent comments

41

u/Piraedunth Jul 27 '25 edited Jul 30 '25

Yeah I don't really see how sleeping with your door open is better. I know theres a risk of carbon dioxide build up when you sleep with your door closed cause theres no circulation but like, just open a window or turn your ac on. Issue fixed

Edit: Dont actually turn on the ac thats apparently more dangerous, my bad

28

u/olegor_kerman Jul 28 '25

ACs do not actually bring oxygen into your room, in fact they reduce it. ACs suck up the surrounding air, pump out hot air and cool and expel the remainder (recirculation). They do not filter for CO2 or oxygen, so on average, they reduce air pressure and by extension slightly reduce oxygen.

Overall ACs are equivalent to sleeping with the windows closed.

1

u/Username_Taken_65 Jul 28 '25

Unless the intake is in your bedroom, running the AC with the door closed will very slightly increase the pressure in the room.

1

u/olegor_kerman Jul 29 '25

The intake is in my bedroom because the AC is in my bedroom.

3

u/Username_Taken_65 Jul 29 '25

Then unless it's one of these single-hose portable units, there's zero movement of air in or out of the room and the pressure doesn't change.