Understanding Overall Air Quality

The overall air quality is calculated based on the particles and odor (gas) concentrations and is categorized in 4 levels depending on the contamination of the air. (Green, Yellow, Orange, and Red)ColorOverall air qualityConcentration of PM (μg/m3)Concentration of odorStatePM10PM2.5PM1.0StateLevelRedPoor255 or more56 or more56 or moreVery strong4OrangeUnhealthy155 ~ 25436 ~ 5536 ~ 55Strong3YellowModerate55 ~ 15413 ~ 3513 ~ 35Normal2GreenGood54 or less12 or less12 or lessWeak1 The color of the overall air quality is based on the worst level detected, whether odors (gas) or particulates.PM concentration values are based on the data sheet provided by the sensor manufacturer.The PM concentration measurement was tested using LG Electronics’ standard test materials.Differences in PM concentration values may be the result of different methods of measuring or differences in the actual PM concentration levels.If the PM concentration is high, there may be a larger difference between the displayed concentration and the actual concentration.