Ever wonder how fruits and vegetables are kept fresh all the way to the grocery store, but then spoil within days of bringing the produce home? Now you can use the same technology at home to keep your produce fresher longer. The PureAir® Freshness Booster™ Refill removes ethylene from the crisper to help minimize food waste and ultimately save you money.The refill lasts up to six months and includes 2 Freshness Booster™ packets, Timestrip® Time Indicator and instructions.