General description Great replacement for Blueair Pure 411, 411+, and Mini air purifiers. This HEPA filter effectively captures ultra-fine air particles, including pollen, bacteria, and pet dander, ensuring cleaner air in your home. Technical specifications Removes 99.97% of allergens and contaminants Color: white and black Material: filter paper Package Contents: 3 * Air Purifier Filter Measurement allowed error: +/- 1-3 cm Usage Designed to capture harmful odors and toxins, such as paint evaporation, while providing year-round cleaning and circulation.