G.A.S. Intelligent Humidity / VPD Controller for SonicAir Pro Humidifier Bulky There are 4 basic modes

There are 4 basic modes of operation which are as follows:

Using a flushing solution like Final Flush can help remove accumulated salts from the medium before harvest

This method of working may be more convenient than handwatering

PMT works best as a preventative measure

allowing oxygen and nutrients through while blocking pathogens and toxins

G.A.S. Intelligent Humidity / VPD Controller for SonicAir Pro Humidifier Bulky There are 4 basic modesControl the Humidity & VPD in Your Grow Room for Optimum Plant Growth Please note, this is only compatible with the SonicAir Pro Humidifier The GAS Intelligent Humidity Controller takes care of the humidity levels in your grow room, for faster growth rates and happier plants. Air temperature and humidity are the two factors that affect something called Vapour Pressure Deficit (VPD), which is literally the "drying" ability of the air. For plants to