So I was talked into a fogger at a shop and although I love it I think I'm over my head. I can't figure out if it's safe to clean it, and for some reason the ring around the bottom that adjusts the airflow won't move. I'm not sure what maintenance I have to do ( I've been shown how to change the cotton but don't know how often to do it, and can't build a coil). Does anyone know of any websites that have info on the fogger? I've looked and can't find anything. Thanks for the patience with the noob.