Advance Tech India Limited provides Air Quality Monitoring System as part of its Environmental Solutions for the environmental management system. Air Quality Monitoring System is a comprehensive solution to monitor all the critical ambient environmental parameters related to air quality, noise, odor, weather, and radiation. In addition, meteorological parameters like wind speed, wind direction, rainfall, flood levels, and visibility can also be monitored. AQMs is an air quality sensor-based highly accurate yet cost-effective solution – measuring criteria pollutants to WHO air quality limits. We need to protect our precious earth. Protecting the atmospheric environment involves control of atmospheric emissions as well as an understanding of pollutant dispersion, monitoring emission levels, i.e. concentration in ambient air pollution. To monitor these levels there are Air Quality Monitoring Networks. The main objective of these Networks is to record the concentration levels of atmospheric pollutants by air quality sensor to define air quality levels and establish action plans if high levels of contamination are detected. Air Quality Monitor is capable of measuring PM2.5, PM10, CO2, VOC, Ozone, So2, No2, C6, H6 as well as temperature and humidity. An air quality sensor (MQ135 sensor) detects air pollution and generates an air quality alert as per the limit set in the settings. AQMs is an asset for environmental management system in weather stations, mountains, cities, coastal areas, etc. MQ135 air quality sensor detects ammonia, nitrogen oxide, smoke, CO2, and other harmful gases. The air quality sensor has a small potentiometer that permits the adjustment of the load resistance of the sensor circuit. The 5V power supply is used for the air quality sensor.