venting.....

hello all.
i havent been on here in a while, i finished my first grow back in the beginning of the year and then had to shut down because i was moving

but now im back, getting ready to start round numero 2

my first question is about venting. im planning on getting a can filter for the room. do i need to vent it out of the room or can i just exhaust back into the room.
i think i have a way of safely venting it out of the room, but id just rather not if i dont have to.
also, do these filters COMPLETELY kill the odor? or just most of it?


ill be starting in the next couple weeks so ill be starting a thread and all that good shit.

**the link in my signature is what i did this past spring**

Always vent to the outside.the carbon granule can filters are very efficient but nothing will completely remove all odor.also , the higher up the vent outlet ,the less chance of someone getting a sniff.normally i always grow in the winter so there is less traffic around to be of any real concern.Good luck with your grow...