the humidity can be up in the 80% margin when in veg growth,when you put them into flower start to lower the humidity,you want to get it below 50% my room's 46%.this help's the thc process an most importantly keep's the bud mold away.bud mold love's humid conditions,it can destroy a fully budded female in as little as 5 day's if un-noticed,happened to me a few time's,it's so nasty having to throw 2 ounce's in the bin as it's rotten!!!..hope this helps.... love an respect..spliffbuilder.