attic grow

im planning on starting an attic grow after christmas, and im not 2 sure weather my attic has 2 vents, i cant get up there and check as it hasnt been converted yet, no lights, floorboards ect.

so was just wondering if anybody has any ideas if my attic doesnt have 2 vents?

thanks in advance for any help

I grow in an attic and only use one vent. If your not too worried about smell you'll be fine with one. Just pump the air in from the vent and pump it out into the attic space (if youre planning on sectioning off the space like i did. Best of luck anyway, all you need to know is right here on this site