Thanks man! Check this pic out:
Look right behind the A/C to the right. There is exhaust ducting being pumped outside the tent. As far as scrubbing clean air in. The side of the A/C pulls air through a filter, and the environment of my tent is regulated by my house. And on the bottom left of the image. Clean air is brought in from my central A/C, and hot air is scrubbed out through my lights by a 6-inch centrifugal fan outside of the tent. From there you can keep it whatever temp you want. My humidity is anywhere from 30-50, normally in between. It's a bit spendy to get the right temps, especially in Cali, but well worth it in the end. No root rot, mold, heat burn, over-lush, or any other environmental stress issues. Keep it simple stupid
Maximize the quality and efficiency of your temperature, air, space, and light. From there you can start fucking with nutrients and medium. Your plants will love you!