I have been doing a huge 4800sf flagstone job. I was wondering if anyone has industrial fans they use for when cutting dry stone to blow away the dust from the work area? Can you recommend a correct size/model. My foreman hates the wet saw but one of the employees is asthmatic so I'm trying to improve conditions. Also I'm thinking about a nice portable shade structure for doing masonry flatwork in the sun all day, right now I have my football tailgating one about destroyed. Is there any designed for job sites more so?