Hey all. Looks like my luck finally ran out and I've spotted powdery mildew in my room. Only a couple spots here and there, but now that it's here, I know it's here. Week 2 of veg. I immediately began spraying serenade, will start rotating in with green cleaner. I want to burn sulphur, however I've read/heard conflicting opinions on whether or not it can be used in a sealed room. I have no intake or exhaust, I burn CO2 and control the climate with my AC and dehu. If I could get some feedback that would be appreciated! The space is 30x15 and will soon by divided into 14x14 spaces. For now we will treat it as 30x15.