HEPA Dust Collection Technology HEPA Filter with Anti-Bacterial Coating High Efficiency Removal of Particulate Matter Carbon Filter Removes Odors Improves Freshness of Air with Inbuilt Ionizer Intelligent Air Quality Monitoring Filter Change Indicator Silent Operation User-Friendly Functional Design Safe & Convenient for Use High Purifying Capacity Child Lock Feature HEPA Dust Collection Technology HEPA Filter with Anti-Bacterial Coating High Efficiency Removal of Particulate Matter Carbon Filter Removes Odors Improves Freshness of Air with Inbuilt Ionizer Intelligent Air Quality Monitoring Filter Change Indicator Silent Operation User-Friendly Functional Design Safe & Convenient for Use High Purifying Capacity Child Lock Feature