This is a genuine Dyson Premotor filter for models: DC41, DC65, DC66 and UP13 models.

This is a washable, resuable filter that can be washed up to 20 times. After 20 washes you will need to replace this filter.
We recommend washing your filter at least once per month to maintain optimal performance of your machine, and to keep your vacuums motor stress-free and your air quality at peak performance.