Highlights: Upgraded version from Core 400S True HEPA Air Purifier, with new PlasmaPro™ Technology! GOOD HOUSEKEEPING Certified: "The Best Quality Air Purifier". Wirecutter Pick: "Great Performance Plus Voice Control". Ideal Room Size: 635 sq ft. to 1588 sq ft. (CADR: 410 CFM / 697 m³/h). QuietKEAP Technology & Quiet Operation: 24dB. What Makes Us Stand Out! VortexAir™ Technology 3.0. Tested CADR for extra-large rooms. Designed for large living rooms, lofts, apartments, offices, kitchens, basements, and more! Enhanced with HEPASmart™ Technology Smart Features: Free VeSync App: Control your smart air purifier from anywhere. Voice Control: Use your air purifier without having to lift a finger. Set Schedules: Get fresh air exactly whenever you want it. Check Filter Life Easily on the VeSync App. AirSight Plus™: Laser Dust Sensor and Auto Mode: Set it and Forget it. Indoor Air Quality Display. PM 2.5 Display. Why Levoit? #1 selling air purifier brand in the US 2019-2022. Hassle-Free 2-Year Warranty and Friendly Customer Support Team-Based in California. Our Commitment to Fresh Air: Since 2019, Levoit has planted 2,000 trees through our partnership with WeForest. Trusted by 3M+ Customers: Levoit brings fresh air to over 3 million customers worldwide. Explore More Levoit Air Purifiers: Star Product: Core 300-RAC. Small Room: Core Mini. Best Value of Smart Air Purifier: Core 200S. Best Advanced Model For Large Room: Plasma Pro 400S.