air exchange

Greetings everyone I've been having some thoughts on my growroom, I hope you can give me a response to this: The deal is, I have three growrooms, where two of them are for bloom fase. The first room is app. 9 sqm, (98 square feet) and the second room is about half of it. Now, both room...

I am a new grower and trying to find an answer to an air exchange question. Running 4 x 600W LED's, a greenhouse master controller and a CO2 generator. Do I need to exchange the air as often as if I were running HPS's? I have to add heat because my grow are is in a cold storage room in a...