Instead you have an intake hole that passively allows new air to enter thanks to the pressure differences between the inside of the room and the outside.
Closet grow room ventilation.
Step by step grow room setup.
Let s cover what you need to know about fans for in the grow room and as part of your exhaust system.
I had a closet grow that i went a purchased a cheap interior door and two flat vent faces one bigger than the other.
New seedlings are quite vulnerable to diseases sourced from damping off air.
Step 1 select the space where you are going to put your plants it might be a spare bedroom a basement or a grow closet.
I cut holes in the door to match the vent facings.
Some of the best tools to control air flow humidity and temperature in the grow room are fans along with a way to vent out used air.
With this grow room ventilation system you have a fan blowing air out but no fan blowing air in.
And it all starts from the seedling stage.
It is more important than your lighting or your grow system or anything else.
I put charcoal filters in the holes and built a shelf on the larger hole and put a fan on it to pull air out of the closet through the vent.
Spend some time creating a good grow room.
So you need to ensure regular air circulation around them for 24 7.
Grow room ventilation if there is just one thing that i would pass on it is that proper ventilation is the most important thing for a closet grow.
But if you have a larger space hid lights are good as they are very growth efficient.
If your grow room is in a closet or cabinet you want to choose a light that can be closer and that runs cooler like cfl or led without extra ventilation.
For growers who grow on their own ensuring proper ventilation is a must from the very beginning.