Enjoy long lasting fridge freshness with the PureAir™ RAF-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.