Features 1.Through the use of air freshening capsules ofdifferent flavors to bring indoor air atmosphere tothe highest level2.Indoor Air Quality IndicatorGreen: The air is flashOrange: the air is slightly pollutedYellow or Red: the air is highly pollutedWhen IAQ indicator is in yellow and red, theunit will automatically switch to HIGH MODE.When IAQ indicator is in Green, the unit willautomatically switch to LOW MODE.3. Auto-Off Timer :1H/3H/8HFunctions:1. Unique self-inspect system can be effectively filtrated the indoor air in a short time2. Release high concentration anion to improve your indoor air quality rapidly 3. Automatic smell sensor and dust sensor to detect pollution degree and control purifying speed accordingly4.3 levels of wind speed and 1-8H timer functions design easy to save energy5. Unique anti-pollen function to protect you from allergy6. Low noise ensures fresh and reliable sleeping surroundings7. Energy saving and environmental protection
