Keep produce fresher longer with the Rubbermaid FreshWorks 8.4 Cup Produce Saver. Revolutionary FreshVent technology creates an optimal environment for fruits and vegetables by regulating the flow of oxygen and carbon dioxide in and out of the produce container. The CrispTray at the bottom of the food container elevates produce away from moisture and promotes airflow to help prevent spoilage. The built-in lid filter never needs to be replaced and will last a lifetime. Longer lasting produce means fewer trips to the grocery store. vs. store packaging. Results may vary depending upon produce and use.