Sealed room questions

Can anyone offer me really good advice on a sealed room I am using a mini split air conditioner with Co2.. do I not need to exhaust the air ?? I was always told you have to evacuate the air even with co2 Otherwise it just stays stagnant

No, that's the whole point of a sealed room.
If there's ample CO2, there's no need to introduce outside air.

What about exhaust do I need to exhaust the ac air and co2 I was always told it gets stale but then I would have another hole in the room much would be hard to keep the co2 in And thank you very much for responding

What kind of co2 setup are you running?

You can filter the air inside the sealed room. Keeping the particulate levels lower than fresh outside air would be anyway..

bitconboy said:

Can anyone offer me really good advice on a sealed room I am using a mini split air conditioner with Co2.. do I not need to exhaust the air ?? I was always told you have to evacuate the air even with co2 Otherwise it just stays stagnant

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Good advice? Learn about co2 before spending money.

It depends what you mean by stagnant. All grows should have fans to keep the air moving and prevent stagnation. I've never run a co2 setup, but I think its common to exhaust a bit at lights off and clear out the co2 for the dark period.