OOHHH that smell!!

That smell.......im a complete newb but thts wat this sites for i guess...anyway, im growin 3 plants in a grow box, i sorta need to know if a 1 12 x 12inch fan is enought to ventilate the box, but, the ssmell, does it start to smell gradually, or is it like BOOOOOOOOOOOOOOOOM, you wake up one mornin and your room smells like plant........its good smell......but ill get caught.........my luck.........

https://www.rollitup.org/indoor-growing/7074-easy-build-diy-carbon-filter.html

The smell is gradual, as the plants get bigger more smell, more buds more smell...

When the plant is in its vegtative stage it will admit a mild plant smell, but as your plant begins its flowering cycle and starts to produce buds it will start to give off a stronger skunky smell. If you are worried about getting caught build yourself a small carbon filter (about $10) and put that in your grow box. Also, try to not move the branches of your plant around because that will cause the plant to give off even more odor.

i like that smell, but it pretty easy to build a carbon scrubber.