[COMPATIBLE]: HSIAMEN 200/300 replacement filter is compatible with Blueair Classic 200/300 replacement filter model 201/203/203 Slim/205/205E/206/210B/215B/270E/270E Slim/280i/303 [2-IN-1 FILTRATION]: (1) Act1vated Carbon Filter (2) HEPA Filter. 203 replacement filter is perfect for households with pets, cooking, and smokers as it effectively purifies the air in your home [HIGH-EFFICIENCY HEPA]: Designed to eliminate most airb0rne particles including common aller9ens like p0llen and pet d@nder. With our 205 replacement filter, you can enjoy fresh air in your home and breathe easier [AFFORDABLE]: Our mission is to improve the health and wellness of our community with purified air, while allowing everyone to get a better price. Save much cost for your all year round air cleaning need with 200 filter [MAINTENANCE TIPS]: It is recommended to replace the 200 series replacement filter every 6-12 MONTHS, depending on air quality and frequency of use. If you have any questions or concerns, please don't hesitate to reach out to us HSIAMEN Classic 200/300 Replacement Filter Dual Protection Compatible with Blueair 200/300 Series Model 201, 203, 205, 210, 215, 250, 270, 280i, 303, True HEPA with Activated Carbon, 2-Pack