Helps eliminate dust</br>Extends the lifetime of the humidifier</br>This product is manufactured in United States</br>Filters water for crane drop shape humdifiers</br></br>Product Description</br></br>Replacement filter for use with all crane drop shape humidifiers?? to filter water?? help eliminate dust and extend the lifetime of the humidifier.</br><br/>http://www.amazon.com/gp/product/B002P3YRAY