Hey buddy. If you look through my close up pics you'll c my bud is laced with dog friendly hair. Y do I say dog friendly, cause it will do no harm in the slightest, all you'll get is a pain in the arse come harvest going through your bud and pulling it out. And even that only takes 2 mins to do a whole plant. Any 4 legged house pet will have some sort of pet hair and dust. Good van to stop the dust, as that would be more of a worry to me. Every 2 wks or so I take out my plants spend a few mins pulling out what I can see and wiping down the entire tent espically the ducting and lights and even on your fan you'll c a build up of dust/hair and likely some of your own hairs as a normal human loses a 100 hairs a day, unless u going thru male/female baldness then it's up to a 5-1000hairs a day. Good luck pal.