G.A.S. SonicAir HumidifierThe SonicAir Humidifier from G. A. S. The SonicAir Humidifier, from Global Air Supplies, is an affordable way to add extra moisture to the atmosphere, bringing the best out of your crop. When your room is too dry, growth rates will quickly start to slow down, as it's extremely important that you get the balance right. If this is the case for you, then a quality humidifier is an extremely important purchase, especially during the vegetative stages. How