booboo.the.bear
New Member
Im building my first grow box so I'm a newbie here. I found a lot of useful information here so i thought id return the favor! If anyone has thoughts for improvement shoot away.
On this site and many others i have found many DIY carbon filters but i needed something low profile and stealthy. Inline fans were too big of a solution and many DIYs were too big to be stealth. I hope this helps someone.
Materials List:
Bird feeder (pictured below and purchased at home depot)
Sheet of Aquarium filter media (basically a foam sheet thats not too dense so air flow is good. Petsmart)
Duct tape
Carbon media (Petsmart)
Step one:
Cut the foam sheet. A little oversized seems to be better. I used this foam so i avoid restricting airflow and to keep carbon in place. I made three different ones for the bottom back and front to help trap the carbon.
Step two:
Take duct tape and wrap around the sides of the bird feeder.
Step three:
Insert the bottom and back foam. Lay the bird feeder down with the cage open and fill it with carbon. The right amount of carbon is somewhat tricky. You want enough so it does its job and also so the carbon doesn't slide down when you mount the filter. But the carbon is dense and fine (couldn't find pellets) so it will definitely restrict airflow. After you fill it with carbon put the other foam on top (like a sandwich) and close the cage of the bird feeder.
Step four:
This is why i said to cut the foam a little large. When you stand up the bird filter like you were going to mount it there may be some leaks. Simply duct tape over them to keep carbon from spilling out. Less is more here. Airflow is king. I also put duct tape on the bottom of the exhaust side to force airflow through the carbon. After this step the filters are ready to mount over your exhaust fans!
On this site and many others i have found many DIY carbon filters but i needed something low profile and stealthy. Inline fans were too big of a solution and many DIYs were too big to be stealth. I hope this helps someone.
Materials List:
Bird feeder (pictured below and purchased at home depot)
Sheet of Aquarium filter media (basically a foam sheet thats not too dense so air flow is good. Petsmart)
Duct tape
Carbon media (Petsmart)
Step one:
Cut the foam sheet. A little oversized seems to be better. I used this foam so i avoid restricting airflow and to keep carbon in place. I made three different ones for the bottom back and front to help trap the carbon.
Step two:
Take duct tape and wrap around the sides of the bird feeder.
Step three:
Insert the bottom and back foam. Lay the bird feeder down with the cage open and fill it with carbon. The right amount of carbon is somewhat tricky. You want enough so it does its job and also so the carbon doesn't slide down when you mount the filter. But the carbon is dense and fine (couldn't find pellets) so it will definitely restrict airflow. After you fill it with carbon put the other foam on top (like a sandwich) and close the cage of the bird feeder.
Step four:
This is why i said to cut the foam a little large. When you stand up the bird filter like you were going to mount it there may be some leaks. Simply duct tape over them to keep carbon from spilling out. Less is more here. Airflow is king. I also put duct tape on the bottom of the exhaust side to force airflow through the carbon. After this step the filters are ready to mount over your exhaust fans!
