The Winix 112180 Replacement Filter set N comes with all the filters required for 1 year of operation. This filter cassette includes a True HEPA filter and a Coated Deodorization (CD) Carbon Filter. For optimal performance, it is recommended to change the all-in-one cassette once every 12 months. This cassette is sold as one unit and individual components cannot be purchased separately.

Designed for use with Winix Air Purifier units NK100 and NK105.

Approximate filter size is 12.1"(H) x 9.3"(W) x 9.3"(D)