i personally do not bother putting a filter in my veg room. Those filters never last as long as they say, i get less than a year out of the best. vegging is in same room as flowering, (locked door, secure location and all), I use a 6 inch x 16in Phresh Filter in top of budding, (flowering), tent. just changed one and it was 8 months old. People would come in the house and as soon as they got in the living room, they commented on how nice it smelled. Not what i want, people complain and it creates a problem, not so much legal but still a problem. I think some stinky Caramela got it. I used to have Pineapple Express that had a "Stink" warning on it, i think the caramello is better :+) Relax, the worst thing that can happen to a Cannabis Plant is a spazzy grower. water them every 3-4 days, dont let the tops hit the lights, (burn). and relax. It will take some time.. do not pick too early either, do not open up and look when the 12 hour dark cycle is going... make sure your 12 /12 light / dark is religious. Timers are a must. I still use the cheapests ones and never touch the electronic ones. Mechanical timers for me. Good Luck.