sudo apt-get install python-serial python-smbus python-pip

sudo pip install smbus2

sudo raspi-config nonint do_i2c 0

sudo python air_sensor.py 

{
   "co2" : {
      "unit" : "ppm",
      "sensor" : "MH-Z19B",
      "value" : 1471
   },
   "pressure" : {
      "sensor" : "BME280",
      "unit" : "hPa",
      "value" : 1016.78853362804
   },
   "humidity" : {
      "sensor" : "BME280",
      "unit" : "%",
      "value" : 44.0666633123459
   },
   "temperature" : {
      "value" : 26.8403380069882,
      "unit" : "celsius",
      "sensor" : "BME280"
   }
}