Great info and you are right. I just started a little business in the states called the Social Distance Mask Company because there are now places such as Los Angeles where face covering is required. But, they don't want people to use medical equipment which should be saved for Emergency workers. My masks are simple but can be upgraded to n95 with a cartridge. I'm contemplating making a steem or hive account for my business but I don't see many small business using steemit as a blogging platform.