Air circulation is necessary to maintain proper CO2 levels in your grow room. When the air between your cannabis plant’s leaves is stagnant, the carbon dioxide levels will deplete. This leads to the plant suffocating and growth stopping. Air circulation also helps develop solid stems, control the room temperature, and prevent bugs and diseases.
For the perfect climate, you will need both CO2-rich air supply and an extractor for getting CO2-poor air (and warmth) out of your grow room. To keep it stealthy, and prevent your neighbors from complaining, use a charcoal filter with your extractor to prevent odor.
The use of fans helps control the circulation within the room itself.
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