anyways - i do smoke in the grow room, but i stand right under the carbon filter so the shit gets sucked into oblivion right after i exhale
before i bought the volcano (aka the best), i tried a couple other vapes, one was called a super vapozilla or some shit... the one where there is a hose coming from the heating element and you just inhale from the hose...
the PROBLEM with those, is if you inhale with any effort, it makes the temperature of the heating element DIVE... which stops the vaporization effect... so the harder you suck, the less stoned you get, because the temp drops too fast.
thats why i went with the volcano, which has its own dedicated air pump to fill the "lung" for you... at a perfect ratio of vapor to air... you cant mess it up - and the bag of vapor will be cool to sit around for 15 mins while you are smoking it... the bags are also cut to length, so you can get a 6ft bag on there if you want (i saw someone on youtube do this, seems like a waste to me tho)
i got mine on ebay for 550 a couple yrs ago, they have a digital one out now - and if you get it on ebay you get a lot of goodies with it, like a 4 piece 3.5" grinder with kief screen, scales, a cigar humidor, some butane lighters - all sorts of shit..