The Blueair Blue Pure 311i Max smart air purifier is designed for bedrooms, living rooms, and medium-size homes that need powerful air cleaning. Using advanced HEPASilent™ dual filtration technology, it captures 99.97% of airborne particles such as dust, pollen, pet dander, mold particles, and smoke, helping improve indoor air quality. Capable of cleaning up to 387 square feet in about 12.5 minutes or up to 929 square feet in 30 minutes, the Blue Pure 311i Max is ideal for bedrooms, apartments, home offices, and households with pets or allergy concerns. The purifier combines mechanical and electrostatic filtration to efficiently remove airborne pollutants while maintaining strong airflow and quiet performance. Blueair’s HEPASilent technology helps deliver high filtration efficiency with lower energy use and less noise compared with traditional HEPA filtration systems. With a Clean Air Delivery Rate (CADR) of 250 for smoke, dust, and pollen, the Blue Pure 311i Max quickly circulates and refreshes indoor air, helping maintain cleaner air throughout your space. Smart sensors monitor indoor air quality and automatically adjust fan speed when pollution levels rise. Through the Blueair mobile app, you can track air quality, control settings remotely, and receive filter replacement reminders for easy maintenance. Designed for everyday living, the Blue Pure 311i Max features quiet operation and a compact Scandinavian-inspired design with 360° air intake, allowing it to blend seamlessly into bedrooms, living rooms, and home offices while efficiently circulating clean air. Whether you’re managing pet dander, seasonal allergies, smoke particles, or everyday dust, the Blueair Blue Pure 311i Max helps create a cleaner, more comfortable indoor environment.