Enjoy long lasting fridge freshness with the PureAir AF-1 Starter Kit. This kit includes: 1 PureAir Replacement Refrigerator Air Filter FRGPAAF1 and a PureAir Filter Holder. The PureAir filter uses carbon technology to absorb odors and clear the air, even more effectively than baking soda. It can maintain freshness for up to 6 months, which saves you time on monthly replacements and keeps the food in your fridge fresher longer. For filter replacements purchase SKU# FRGPAAF1 Air Filter PureAir Replacement Refrigerator Air Filter.