The fogger will generate overpressure, so the air will come out of the greenhouse, which prevents the entry of pollutants. Mist is heavier than air. Without a fan and without a PVC tube, the mist will settle at ground level. Instead of using a rigid PVC tube, it is possible to use a flexible tube. The fogger can be installed outside the greenhouse, which facilitates water filling operations. The diameter of the PVC pipe must be large enough for the air flow.
This fogger is very useful for the fruiting phase of mushrooms. The air is now saturated with humidity and at room temperature. In the same box, it is possible to have several ultrasonic foggers. It is advisable to insert an air extractor at mid-height.
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