Replacement Filter Compatible with Blueair Protect

[Perfect Fit Guaranteed] Engineered to seamlessly replace your Blueair Protect 7410i, 7400, 7440i, and 7470i air purifier filters. Precision-molded dimensions ensure a secure, airtight seal, just like the original. No gaps, no air bypass. | [4-Stage Genuine H13 HEPA Filtration] Our filter system captures 99.97% of airborne particles down to 0.3 microns, including dust, pollen, pet dander, and smoke. The stages consist of a washable pre-filter, a high-efficiency activated carbon layer, and a true H13 HEPA filter for ultimate purification. | [Advanced Odor Elimination] Packed with dense, pelletized activated carbon, this replacement filter significantly reduces household odors from cooking, pets, smoke, and VOCs (Volatile Organic Compounds). Breathe fresher, cleaner air in minutes. | [Hassle-Free Installation in Seconds] No tools required. Simply remove your old filter, slide in the new Maostair replacement, and instantly restore your purifier's peak performance. We highly recommend replacing filters every 6 - 12months for optimal air quality. | Worry-free ServiceProduct quality and customer satisfaction is our top priority, timely replacement of parts is vital to maintain product performance, you can rest assured to buy our products. If you have any questions about the product, you can contact us at any time.