how do i eliminate smell when growing inside?

any ideas?

a carbon filter with an inline fan, I got mine at htg supply it works well but the inline fan is a bit loud

There is also a good how to on how to build your own from wal mart parts, it works quite well. If you are growing the dankest smelling weed you are gonna have problems no matter what you do, you'll probably have to add ozone to the mix.