𝐇𝐢𝐠𝐡 𝐄𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐭 𝐀𝐢𝐫 𝐅𝐢𝐥𝐭𝐫𝐚𝐭𝐢𝐨𝐧: The Core 400S filters your entire room in minutes. Use the intuitive app with full feature control, or rely on high fan speed to improve airflow and add cooling comfort in summer 𝐋𝐚𝐫𝐠𝐞 𝐏𝐮𝐫𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐀𝐫𝐞𝐚 𝟑𝟔𝟎°: Air intake optimal for living room, office, kitchen, bedroom. The powerful HEPA technology brings in air from 360°, which is why it can clean your 166㎡ room once an hour and 83㎡ room 2x an hour 𝐁𝐫𝐞𝐚𝐭𝐡𝐞 𝐄𝐚𝐬𝐢𝐞𝐫 𝐓𝐡𝐫𝐨𝐮𝐠𝐡 𝐇𝐚𝐲 𝐅𝐞𝐯𝐞𝐫 𝐒𝐞𝐚𝐬𝐨𝐧: Seasonal sneezing or congestion may be caused by airborne pollen. The Core 400S with 3-stage HEPA filtration and smart PM2.5 sensor tracks air quality and removes pollen and irritants, while Auto Mode adjusts in real time to help reduce exposure day and night 𝟑-𝐒𝐭𝐚𝐠𝐞 𝐇𝐄𝐏𝐀 𝐅𝐢𝐥𝐭𝐞𝐫: The Core 400S not only traps particulate matter like dust, fur, lint and hair down to the tiniest particles, zero point three microns! How big is a micron? A human hair is seventy microns thick! You'd need to magnify 500 times to see a single micron 𝐏𝐌𝟐.𝟓 𝐒𝐦𝐚𝐫𝐭 𝐒𝐞𝐧𝐬𝐨𝐫 & 𝐀𝐮𝐭𝐨 𝐌𝐨𝐝𝐞: AirSight Plus technology detects PM2.5 and airborne particles in real time, then automatically adjusts fan speed for efficient purification 𝐒𝐢𝐥𝐞𝐧𝐭 𝐎𝐩𝐞𝐫𝐚𝐭𝐢𝐨𝐧 - 𝐖𝐡𝐢𝐬𝐩𝐞𝐫 𝐐𝐮𝐢𝐞𝐭: when you leave both running all night. You hardly know it's on, sometimes you have to check the display to be sure, it's that quiet 𝐆𝐞𝐧𝐮𝐢𝐧𝐞 𝐅𝐢𝐥𝐭𝐞𝐫 𝐑𝐞𝐩𝐥𝐚𝐜𝐞𝐦𝐞𝐧𝐭: For peak performance, use genuine replacement filters to look for "LEVOIT Core-400S-RF". Monitor filter status via app, replace every 6-12 months 𝐖𝐨𝐫𝐫𝐲-𝐅𝐫𝐞𝐞 𝐒𝐮𝐩𝐩𝐨𝐫𝐭: Comes with a 2-year warranty and lifetime support, Levoit customer support team will always be here to help 𝐂𝐨𝐯𝐞𝐫𝐚𝐠𝐞 𝐀𝐫𝐞𝐚 𝐍𝐨𝐭𝐞: 80㎡ for closed single rooms, not for open-concept spaces over 180㎡. Extreme pollution scenarios (“Allow 2–4 hours of runtime for heavy dust/smoke”), Weight: 10.9349281952 Pounds, Manufacturer: LEVOIT