Hejiko Desktop Air Purifier: H13 True HEPA Filter 4 Stage Air Filtration System for Smoke and Odor Elimination in Home, Bedroom, and Office Review

【Advanced 4 Stages Air Filtration System】-- Hejiko HJ-H13W air purifier with a combination of cold catalyst filter, GM adsorption filter, activated carbon filter, and H13 true HEPA filter effectively removes 99. 97% of airborne particles as small as 0. 3 microns, and other large particles, like odors from pets, smoke, cooking fumes. 【High-Efficiency Desktop Air Purifier】-- Our desktop air purifier can filter air 4x per hour at high speed in small to medium rooms up to 215 ft2 / 20 m2, like bedroom, living room, office. 360° Filtration System can purify the air in full-dimensions and offer you fresher air. 【Smart Air Cleaner】-- Our Hejiko air purifying system comes with build-in smart Air Quality Sensor, which detects surrounding air quality instantly and displays changes in air quality index and color-coded air quality levels. In auto mode, the air purifier can adjust the wind speed according to surrounding air quality. 【3 Wind Speeds & Sleep Mode】-- This hepa filter air purifier has 3 wind speed level (low, medium and high) and sleeping mode. In sleep mode, noise levels next to a near-silent 20dB, helps you enjoy a good night. At other time, the noise is more like white noise, which will not disturb you. You can choose a suitable mode based on your different purification needs for optimal performance. 【Exquisite Detail Design】-- Child lock setting can avoid unnecessary issues caused by your kids and pets' misuse. Filter replacement indicator reminds you when you need to replace the filter (Usually replace every 6 months). You can set air purification time by timing (1-8h) for saving energy.