When using a sealed room many people use a portable air conditioning unit so the room does'nt lose any of the co2 enriched air....This seems the way to go as if using exhaust fans you will suck all the co2 out of the room but my question is this.

All the portable air conditioners i have seen working take the heat out of the air and exhaust the hot air out of the room via a pipe but keep the cooled air inside....Is this not the same as using an exhaust fan?
Macey Reviewed by Macey on . CO2 and air conditioning When using a sealed room many people use a portable air conditioning unit so the room does'nt lose any of the co2 enriched air....This seems the way to go as if using exhaust fans you will suck all the co2 out of the room but my question is this. All the portable air conditioners i have seen working take the heat out of the air and exhaust the hot air out of the room via a pipe but keep the cooled air inside....Is this not the same as using an exhaust fan? Rating: 5