How often do you sweep and vacuum the floor?
Half of my work is with hand tools so no dust collection on that, and power tools and machines contribute despite dust collection. My shop is small so it takes a minute to sweep it and 5 to 10 minutes to vacuum, so I sweep about every half hour and vacuum about every 3 hours, all depending on how much stuff hits the floor. Sounds like a lot but it keeps me from tramping up so much dust.