Wolipury 2 Pack 311 Auto Filters Replacement, Compatible with Pure 311 Auto Air Purifier, 2 in 1 HEPASilent and Activated Carbon Filter

["PERFECT FIT FOR 311 AUTO MODELS Specifically designed as a blue air filter replacement compatible with the 311 Auto air purifier (20.5 inches). Please note: This 311 filter is not compatible with non-auto 311 models, 411 series, or other models. Always confirm your purifier model before purchasing","ADVANCED 2-IN-1 FILTRATION This high-efficiency replacement filter features a dual-layer design with H13 True HEPA and activated carbon. It captures 99.97% of airborne particles like dust, smoke, while reducing odors, cooking smells","360° AIRFLOW & LARGER SURFACE Designed with 360-degree air intake and expanded filter surface, this blue air filter improves airflow and extends lifespan. It provides strong filtration performance while running quietly—ideal for bedrooms, offices, or living rooms","EASY TO INSTALL & REPLACE No tools needed. This 311 Auto filter replacement is easy to swap out in seconds. For optimal results and cleaner indoor air, replace every 3–6 months depending on usage and air quality","VALUE PACK & QUALITY SERVICE Each package includes 2 high-quality blueair 311 filters. Made from premium, eco-friendly materials for long-lasting performance"]