Thanks inkera for your interest & post! To a certain extent nature does self clean it's self and depending on how far from your dwelling will depend on how much of a potential odor problem you may have. Raking out the box weekly and replenishing the oil dry as needed will go a long way to solving any odor problems. If odor persists try using a deodorizer for the litter box, such as Arm & Hammer. Discard the leavings by placing them in plastic shopping bags and putting in the trash or burying them in the yard. If snow is heavy in your region, constructing a slanted roof to keep out the snow is advisable( just insure it is sturdy & well constructed). Hope these tips help! Best of luck!