Don't feel wasteful taking out half empty trash bags just because the garbage is smelling up the house because now with the new activated carbon filters specially designed to fit in your halo Deodorizer Sensor Trash Can (8 Gallon and larger sizes), you won't have to worry. Lasting up to 3 months, these all-natural active carbon filters are able to absorb and eliminate the odors emitted from the trash. Saving time and money has never smelled so good. For use with trash can models equipped with an odor filter compartment attached to the inside of the lid cover.