Removable, washable, and reusable. The Blue Pure 411 Washable Fabric Pre-filter is the first line of defense against larger particles in your air; capturing hair and large dust particles. Available in 5 modern colors to fit your style, the 411...

Removable, washable, and reusable. The Blue Pure 211+ Washable Fabric Pre-filter is the first line of defense against larger particles in your air; capturing hair and large dust particles. Available in 5 modern colors to fit your style, the 211+...