how long will my room smell like weed for when i open my growbox?

Cigar

New Member
if i build a growbox with a carbon filter to hide smell, how long will my room smell of weed for when i open it to water my plants and check on them?
 
If you have a negative pressure in your room being exhausted outside, you should hardly notice a smell; especially if you have some Ona in the room.
 
Your smell will also be low, if any, until you are a few weeks from harvest anyway. Especially with a little PC box. The smell from opening it should be equivalent to the smell of opening a big dank bag.
 
dont sweat it just open a window or light a incent its not like it will leave a huge stench unless you have a bunch of plants just chill
 
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