Smell??

Depends on how intense of a smell the strain gives off. Some times a little bit of ona gel near the exhaust is ll you will need. Other cases mini carbon filters (DIY) style
 
a small DIY carbon filter,they sell activated carbon at wal mart in the fish tank supply isle..or u can get ona gel at a hydro shop..
 
get a few of those automatic spray canisters, you can set the timer on them for 9,18,36 min intervals. I have 2 in my grow area, and they seem to work good.
 
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