HEPA Air Purifier: 8-in-1 Air Cleaner for Home with PM2.5 Auto Sensor, Washable Pre-Filter - Perfect for Allergies, Pets, and Smokers in Large Rooms - Auto & Sleep Mode (White) Review

【PM2.5 Smart Air Quality Sensor】Our air purifier features an smart air quality and PM 2.5 sensor, which can consistently monitors the air quality in your environment. The LED indicator shows the indoor air quality through color changes(good - Blue, medium - Purple, bad - red). PM2.5 content will be shown on the display. With this smart air purifier you can always know the air quality and PM 2.5 content in your home or office. 【3-Stage Filtration】 The H11 True HEPA filtration system is composed of Advanced Ultra-fine Pre-Filter, HEPA Filter and High-Efficiency Photocatalyst Filter, which can captures the smell of pets, kitchen and smoke, and remove 99.97% of pet dander, dust, pollen and PM 2.5, etc. 【Auto Mode & Sleep Mode】This air purifier have 3 fan speed, in auto mode, it will be automatically adjusted according to the air quality to filter the air. Use the Sleep Mode of the true hepa air purifier for silent operation at night, filter the air with a noise level about 20dB for a restful and soothing indoor environment, help you sleep deeply. 【Timer & Child Lock】This air purifier has an auto turn on/off time range of 1~12 hours, gives you the flexibility to set the air purifiers to turn on or off at any time you want. The "Child Lock" can effectively avoid error operation caused by pets or children during curiosity. Keep pressing the "Child Lock" button for 3 seconds to start avoiding touch mode. 【Genuine Replacements】The convenient check filter indicator informs you when it might be time for a new filter. Please only use genuine replacement filter to ensure excellent performance. We suggest the filters should be replaced every 6–8 months. (Search for B09KLVZL4C).