More Product Details: PM2.5 Real-time Monitoring System: This HEPA air purifier for bedroom is equipped with a PM2.5 sensor, which can effectively monitor the PM2.5 index in the air and judge the air quality through the color changes of the icons on the display screen, making it very clear and clear. Blue represents very good, red represents polluted Smart Filter Replacement Reminder: Our room air purifier is equipped with a 3000H efficiency filter replacement reminder. You can also check the service life of the filter through the APP. After using the home air cleaner for 3000H, the indicator light will flash. Based on usage and air quality, it is recommended to replace the filter every 6-8 months. To ensure the good results of the product, we recommend that you use an official filter. Quality Assurance and Service: This bedroom air purifier is FCC certified, ETL Listed, CARB approved and 100% OZONE FREE, totally environment friendly. Besides, we provide 3-Years Warranty & Lifetime Service Support. Must See: The power adapter, manual and remote control are all inside the filter, please rotate the bottom of the air purifier to take out the filter before usage to get all the accessories. What's Included: 1*HEPA Filter Air Purifier, 1* Original Air Filter Element, 1* Power Adapter, 1* Manual Features: Support: CADR: 320m³/h Support: Max Coverage: 1925 sqft Support: WiFi Connection Support: Smart APP Control Support: Alexa & Google Assistant Support: H13 True HEPA Filter&4 Stage-Filtration Support: 5 Air Quality Real Time Digital Display Support: 4 Speed Adjustment & Auto Mode Support: Child lock&Sleep mode Support: Smart Filter Replacement Reminder Support: 1-12H Quick Timer & Unlimited timer Support: 3 Years Worry-Free Warranty