I've never wore a haz mat suit when filling my big spray rig but I do run activated charcoal cabin filters when spraying simply because I don't want to inhale the overspray. Far as meat and vegetables, we mostly 'grow our own' here anyway and that includes beef, lamb and pork. No poultry however. I have Histo Plasmosis so I stay away from chicken shitte if I can.
You have to keep in mind that what comes out of the sprayer is diluted many times before it is even assimilated by a plant and whatever I spray is also diluted before I spay it.
I tend to use outdated DEF as a foliar inoculant for fertilizing because it's much cheaper than say 28% urea or 46 granulated. I look for outdated DEF and use that. Just picked up a 350 gallon tote of outdated DEF the other day for a hundred bucks. 350 gallons of DEF will fertilize my crops for an entire growing season.
Not many producers know about it and I like to keep it that way. DEF is nothing but 28% urea and deionized water. Smells like cat pee.
Outdated or frozen DEF cannot be sold retail and has to be disposed of and I'm the disposal person out here...lol
I do use 46 granulated, clay coated prills on the garden but the cost has gotten prohibitive. 2 years ago I cou8ld buy them for 15 bucks a 50 pound bag. Today they are over 50 bucks a bag, I do believe the increase in cost has a lot to do with Ukraine because most of it comes from there.