LG provides various solutions for air quality control from stand-alone air purifiers to air purification kits for VRF and single/multi split cassette-type indoor units (except the 2-way cassette). Thus, solutions to control these concentrations are essential. According to ASHRAE 62.1, if the concentration of these pollutants in a space exceeds a certain level, the air quality is considered poor and may negatively affect the occupants. Air quality is measured by the concentration of pollutants in the air such as gases, dust particles and microbes. The trend to improve indoor environments not only relates to comfort and convenience but also takes indoor air quality into consideration. The arrival of COVID-19 and its impact on our lives has stressed the importance of air quality.
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