Suck it up
Mixing powered goods like grout and concrete mix can be a messy process that leaves everything nearby covered in powder. Here’s a tip: when pouring concrete mix into a bucket for mixing, hold a vacuum hose close to the top of the bucket. The vacuum will catch a lot of the dust before it can escape into the air and potentially get in your lungs. This sort of “preventative vacuuming” will save you time on cleanup and might also save your lungs from any nasty, unwanted substances. You should still wear a dust mask.