premise: uh i'm familiar with that one we uh we have stuff that's very interesting yeah we have hoods we have ductwork and all those type of uh interesting pieces of equipment where they have uh that we sample and it may have uh over uh a certain emission levels this is on the solid side and so we take it
hypothesis: So on our stuff, there are hoods, ductwork, and a few other interesting pieces of equipment used for sampling emission levels.