co2 booster dilemma

hey ive grown several rounds with great success. i moved recently and cannot have the windows open. i have a 5x5x7 dr150 tent 600watt digital light. before i had a 6 inch inline intake and 6 inch outtake. now since i cant have the window open for fresh air, im trying it with no intake or exhaust, just the light being air cooled independently and a co2 booster bucket. my question is, will my yield be the same as usual, should i add an intake and exhaust?, should i go back to before and just hope an open window isnt a big difference, keep it sealed add co2 tank. help very appreciated

or should i get another booster bucket and hold off till next round on the tank

would a co2 booster bucket or two in a sealed 5x5x7 tent be better then the same tent with ambient bedroom ventilation? Please someone give some direction

I use Diy Co2 in my lil cab thats sealed.
Its located in my shed an I must keep it sealed cause of the cold.

I dont think the levels of Co2 get high enought to qualify as enrichment.
But they do add enough to keep the plants growing good without opening the box 3 times a day to get fresh air...

what diy technique are you using?

so some of us are using co2 buckets in sealed smaller 5x5x7 tents with decent results? Or use ambient apartment air with an intake and outake?