i picked up a atlas 1 co2 controller for a great deal, i just have this one question. I understand the controller will turn my fan off in order to keep the c02 in the room , which is i guess ok in veg. I am in a condo and smell is huge for me (30 plants 10x10 room) i cant imagine having my fan off for any extended period of time during flowering.. How do you use co2 and keep the smell in? do you not use it during flowering?
If smell is a concern you can sit a filter and inline fan in the room to control smell in and outside of the room. When the exhaust fan is off smell will still be under control. Let me know if you have any other questions or need a picture. Thanks, GreenThumb