The difference in the amount of dust coming from the concrete is amazing. I swept the floor Saturday after the class I gave and wow there was very little dust, after 2 weeks from the day I painted it. I consider the effort was well worth it given the results. I replaced the drain cover with an aluminium checker plate this week and it is nice and shiny instead of the old steel plate that dated to 1983 when the house was built. It was so rusted it was de-laminating like an old plywood.
When I bought this house the garage walls and ceiling were a dark brown painted over the aspenite. The first picture shows a workbench that is the colour that was everywhere. It was dark at noon in there. After painting the walls and ceiling white and now the floor grey, it is a pleasure to go in there.
Don't fear your tools, pay attention and respect the tools and avoid injury.