Quote Originally Posted by Rezinator
1. Grow odor elimination?
2. Humidity reduction?
3. CO2 ??? Hey! We're nubes. Be nice. Save Zandor the trouble. Chime in.
4. Or just for healthier air supply?
It's just odor control.

Cool temperatures are the best way to control odor but that's not alway's the case. So carbon scrubbers take care of the rest of the time.

Happy growing