I'm new to growing and currently I'm in week 5 of flower. I always see people with exhaust fans and carbon filters and I get the carbon filter for smell but do you really need the exhaust fan if you don't care about smell ? I use a 6 inch computer fan on the lower opening of my tent and have one sucking air out of the top.
Do you really need it?
- Thread starter cipher420
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JoeBlow5823
Well-Known Member
For that one small plant you can probably get away with just the computer fans. For something like this.... you need more.
xtsho
Well-Known Member
If you don't care about the smell then no you don't need a carbon filter. Whether or not you actually need an exhaust fan is going to depend on how your grow is setup. You don't want stagnant air so you need airflow. That can be achieved using different means. Some have tents in rooms where they can leave them open. In that case you might not need an exhaust fan. In a tent with the door closed you might need an exhaust fan to exhaust the heat and exchange air. Different scenarios require different requirements.
JoeBlow5823
Well-Known Member
Dude said he has 2 computer fans.... probably moving close to 100cfm. He will be fine considering the small plant and small light.
Green Refuge
Well-Known Member
I thought about doing computer fans because I got plenty of them and they're all corsair and noctua but when I checked cfm them things were like 13 and 15 cfm which won't do much in a 5x5.
JoeBlow5823
Well-Known Member
I mean if you were doing a single small autoflower under a small 100w led, it would probably be ok.