Blueair Blue Pure 311i Max Pre-Filter

Customize your Blue Pure 311i Max air purifier while keeping it performing efficiently with Genuine Blueair Pre-Filters. Designed for a perfect fit, these fabric pre-filters come in four stylish colors — Stockholm Fog (light gray), Moss (soft green), Sand (rose-toned pink), and Limestone (neutral beige) — allowing you to match your purifier to any room’s look.

Built for durability and easy upkeep, each pre-filter helps trap larger particles like lint, hair, and dust before they reach the main filter. To maintain optimal performance, vacuum the fabric surface regularly using the brush attachment to remove buildup. When it’s time for a deeper refresh, machine wash on a gentle, cool cycle and hang dry completely before reinstalling. With proper care, these pre-filters can be used again and again to keep your indoor air clean and your purifier looking new.