Santa Fe Compact 2 MERV 8 Filter (4029748) is a replacement part for the Compact 2 dehumidifier. These MERV filters capture particles down to the micron level so the air in your house gets cleaner and cleaner. They also keep the machine working by stopping particles from damaging the inner workings of the dehumidifer. These filters will last up to 6 to 12 months, depending on the location of the dehumidifier. Made of durable material.