Dialing in, or Controlling your growing environment, is extremely important for growing plants inside a greenhouse or grow room. A controlled environment allows the grower to maintain the proper light, carbon dioxide, temperature, humidity, water, pH levels, and nutrients to produce crops year-round. Three very important environmental factors to manage are air movement, temperature, and humidity levels. CO2 enrichment in a controlled environment allows plants to meet their photosynthesis potential. Enriching the air with CO2 can be achieved with CO2 burners, Liquid CO2, and CO2 emitters.