indoor Searching for a fan for a 2x4 Growing Tent

[Major Pain]

You could try one of these to see if you can have airflow without too much of a drop in temp.
These are not my pics, just some I found on the net.

Intake scoop: Open the vent, and re seal it with the outside edges a little closer together.

Intake duct: You can restrict how much air gets inside the tent by blocking/ taping a portion of the duct, or tape a restrictive filter material to the front.

What I have done is intake ducting with a dust filter on the end and control the fan speed, and how long it runs with the built-in controller.

 

[Marturo]

I don't have a tent, however if I needed to grow in a secure spot I would build a box like this. https://thehotpepper.com/threads/homemade-growing-tent.75238/

With a quiet 4" computer fan in the lower wall for fresh air & a heating mat ,I would have a warm environment with more than enough fresh air for my plants.

 

[Bou]

I'm using this cheap clip-on fan (set on a timer) in my 32 x 32 inches tent. It seems enough for this size and help to keep humidity (oedema) and gnats under control!

 

[Saphira]

Intake scoop: Open the vent, and re seal it with the outside edges a little closer together.

Hey,

ty but can you pls explain what I can see on these picture?
I know its not from you but what is these for a mesh on the picture?

 

[Major Pain]

Hey,

ty but can you pls explain what I can see on these picture?
I know its not from you but what is these for a mesh on the picture?

Anyone wondering.. the question was answered in D.M.