3-Pack Replacement Washable Pre-Filters for Blueair Blue Pure 211+ Lunar Rock Color

Blueair Blue Pure 211 Air Purifier Replacement Pre-filters: Pack of 3 gray slip-on fabric pre-filters are compatible with the Blueair Blue Pure 211+ and 211 Air Purifiers.

Buy Fewer Expensive Filters: Effectively prevents larger particles from reaching your main filter, extending its life and maintaining optimum filter performance for longer.

Efficiently Traps Dust, Dander, Pet Hair, Pollen & Lint: High-quality pre-air filter fabric has a specially designed thread density to trap common household airborne pollutants.

Ultra Easy 'Slip on Slip Off' Machine Washable Design: So easy to remove and clean. Simply machine wash and hang to dry for a perfect fit time after time.

Extra Value Pack of 3: With this value pack of 3 Blueair Pure 211+ Air Purifier Replacement Pre-Filters, you can rotate pre-filters so you'll always have a fresh one on hand. This is an aftermarket product manufactured by Impresa Products. Any other brands mentioned are for illustrative purposes only and are in no way affiliated with Impresa Products, nor do they endorse Impresa Products.