Superior Compatibility: Specifically designed to be fit and compatible with for Blueair Blue Pure 211+ air purifier. Our for Blueair 211+ Replacement Filters provide excellent performance in air purification, to ensure healthy and clean air circulation in your space. Package Details: This value pack designed to provide maximum surface area for optimal filtration efficiency. Hassle-free Installation: With our for Blueair 211+ Replacement Filters, say goodbye to complex installations. No tools are required. Just remove your old filter and replace it with our filter unit. To maintain optimal performance, we recommend changing the filter every six months if used continuously 24/7. Guaranteed Quality: Our replacement filters are not just made to fit, but also to deliver superior performance, capturing small particles effectively to improve your air quality. Enhance your air purifying experience with our 211+ Replacement Filters. [EASY TO REPLACE]The filter is easy to be replaced and disposed without any tool required, ensuring you to replace your old filter in minutes. For performance, it is recommended to replace the HEPA Filter every 3-6 months depending on the usage and environment Only suitable for Blue 211+ Not suitable for Blue Pure 211 Material: plastic colour: white Package Contents: 2 x Air Purifier Filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.