How do I test My Can 66 Carbon Filter to make sure im not getting a odor?

[canadianhemperor]

if the carbon in the filter is not compact and full to the top air passes without being filtered. make shure the top with the filter exit with rivets is not leaking put duct tape or chrome metalic tape on the ridge just to be shure there's no leak on the filter if it's not going through the carbon it's not being filtered.