ePorady

Airflow is the cheapest mould prevention a feminized grow can have, and it is usually undersized. Dense female flowers trap humid air between the bracts, so without a steady exchange the reading at the tent wall says little about conditions inside the buds. Intake and exhaust fans are part of the basic kit described at https://queenfeminizedseeds.com together with a flowering humidity target of 40 to 55 percent. A bigger exhaust fan on a speed controller is quieter and more effective than a small one at full tilt.