[vics stuff]

All my outside blasting has taken place on a clean driveway with plastic covering for recycling of the media . I always use a fine abrasive , not something that you would use on a piece of heavy equipment.
As for a respirator . YES YES YES is all I can say. Anytime you are around a air born particulate source , mask up. You do not want anything to happen to your lungs .
Blasting takes a ton of air not something like you will find in most shops.
I am looking at buying a trailer mounted air compressor just so I have plenty of CFM plus the PSI , which blasting take a lot of both.
Vic