Our 200 300 Series Particle true HEPA filter replacement is specifically designed to be compatible with Blueair Classic 200, 300 Series Models 201, 203, 205, 215B, 250E, 270E, 303 Air Cleaner Purifiers, this replacement filter ensures optimal performance and effortless installation. Excellent Performance: HEPA filter is engineered to remove 99.97% of airborne particles, such as dust, pollen, pet dander, etc., as small as 0.3 microns. By removing these impurities, our filter helps improve the air quality in your home or office, providing you with a healthier and more comfortable living environment. Long-Lasting Usage: Crafted from high-quality materials, our filter is built to last. Its durable construction ensures long-lasting performance, delivering exceptional filtration results for up to 6-8 months, depending on your usage and indoor air quality. Valuable Package: 2 x 200/300 true HEPA filter replacement Kindly Notes: This product is a generic filter that is designed to replace the original part. Any brand names or logos are the registered trademarks of their respective owners. Any use of the brand name or model designation for this product is made solely for purposes of demonstrating compatibility.