What's In The Box: 4 x High-Efficiency HEPA Filters. Each package includes 4 filters, meeting your long-term replacement needs

Compatible Models: This is a Replacement Parts, Compatible with MooSoo K12/K13

Efficiency and Performance: The High-Efficiency HEPA Filter captures up to 99.97% dust, dirty, pet hair, and small particles

Washable and Reusable: Please clean the filter every two weeks (once per week in homes with pets). Gently tap the filter to remove any dirt. Rinse it under cold water, and let it air dry completely before placing it back into the device

Shipping and Installation: Shipping with a strong box to prevent from being damaged in transit. It is easy to be replaced and installed. No additional tools are required