The Bluapple One-Year Refill Kit with Activated Carbon, rounds out the Bluapple 2-Pack with Activated Carbon by providing refills for two Bluapples for one full year. There are 8 packets inside each Refill Kit. One packet is to be placed inside Bluapple. The remaining packets need to stay in the resealable bag they were purchased in, or an airtight container. As long as they are kept airtight, they will last indefinitely. A typical family of four throws away as much as $600 worth of spoiled produce each year. Ethylene gas given off naturally by fruits and vegetables hastens their ripening process, which makes it difficult to consume the produce you've purchased before it inevitably goes bad. The Bluapple absorbs excess ethylene gas emitted by produce and extends the life and freshness of fruits and vegetables in your fridge and on your counters. The activated carbon reduces odours and contaminants. This saves you money and ensures that the healthy food you purchase for your family stays fresh and delicious.