For many years when I was growing in the Bay Area and all over Santa Cruz and Monterey counties etc, most everyone grew in a ventilated setup. Wasn’t usually ideal in the winter months and def wasn’t ideal when we were doing this before charcoal filters came out lol.
I didn’t start building and growing in sealed room setups until I moved to the north state where it gets hotter than snot during the summer months. If you grow ventilated during those hotter months you grow boo boo shitty bud. Of course there’s ways of setting up a ventilated room during the hot months to avoid passing hot air through the room but that’s not ideal or always practical.
Even though all the growrooms I build nowadays have the ability to do both, I still run them “sealed” year round. I build them with the ability to ventilate also because I do just that every so often. I set them up to dump the room a few times while lights on and once during lights off. It’s mo better no matter what some on here will say about setting up a sealed growroom.
A co2 enriched sealed, or “hybrid” room if you will like I do, growroom grows better bud than a regular ventilated growroom 99% of the time. Just sayin
Ready to go “sealed” yet?