OXO Good Grips GreenSaver Produce Keeper - Medium, pack of 2 Waste less and save more with OXO GreenSaver Produce Keepers, a unique system that keeps produce fresher longer An activated carbon filter traps and absorbs ethylene gas, slowing down the aging process and keeping produce fresh longer. The elevated basket lifts produce up and away from the container walls to promote airflow and help prevent rotting. It can also be removed and used as a colander. The adjustable vent on top of each Produce Keeper slides open and closed to maintain optimum humidity levels for different types of produce, keeping them crisp and fresh. The 4.3 qt/4 L capacity is great for heads, bags or boxes of lettuce, broccoli and medium-sized fruits