Setting up proper ventilation is one of the most important part of building a grow box.
What you want from your blower:
- Temperature control
- Humidity control
- Odor control
- Not too noisy !

So we’re mostly doing 3 things here:
- cut holes for intake and outake.
- attach the blower with noise reduction sealing gasket.
- add carbon filters


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First thing is putting the sealing gasket in place on the blower.

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Unpeal it and place it around the blower’s intake.

A good technic to avoid leaving a gap when the two ends meet is to overlap them, and then cut them both at once.

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Here, notice how the two ends get nicely together, without leaving air leaks.

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Ok, now we want to cut the desired outake in the tv bench, it should not exceed the diameter of the sealing gasket.

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It’s usually best to put the outake behind the bench, on the upper part.

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Get your reference paper, and your driller.

Start by just 4 holes, then remove the paper.

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And then do all the other holes.

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Good

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Now get your blower, notice the outtake, it should be pointing down, to avoid any light going out on your wall.

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Put it in place with plastic tape.

It’s important that the tape be made of plastic. Should have some elasticity, we’ll use it to squizz the sealing gasket a bit against the bench.

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There’s a little technicity here.

You want the sealing gasket to be slightly pressed against the bench. So it stays well sealed, but not too much either, we want the sealing gasket to absorb the vibrations without transmitting them to the wood.

So press gently with you finger, then apply the tape.

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Now you’ll notice that the tape does not really stay in place, that’s ok, now we’ll add zip ties.

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Now the point is to have the tape and sealing gasket tightened.

Get you driller and make 2 holes on each sides of the tape.

Insert the zipties, and tighten them, the tape should now be in tension.

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Do the same under.

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Ok, now the worst part is behind us.

Get yourself some carbon filter, and some tape.

So this part might be a little different for you depending on what type and shape of carbon filter you got.

The idea is just to end up with a carbon filter block that covers all the holes of the outtake, we doubled it’s thickness, but that’s not necessarily mandatory.

Then we wrap tape all around it to make and uniform pressure (if we don’t do this all the air will go from the sides, we want it to go throuhg the middle).

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(Might be an easier way depending on your tape)

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Ok, you should end up with something like this.

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Grab the glue gun, and glue it in place.

Make sure the glue does not leave possible air leaks.

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Now that you’re at it, add glue to the ziptie holes around the blower to seal them.