If a person is so allergic to peanuts that dust will set them off then I guess they are pretty much done for. I would stay the he** away from baseball games or any sort of sporting event, any social occasion and kind of wrap myself in plastic. Sorry but your statement doesn’t stand up.
Peanut Dust Allergies Because it is nearly impossible for persons who have an allergy to peanut dust to avoid triggering a reaction if peanut dust is in the air, Southwest Airlines is unable to guarantee a peanut-free or allergen-free flight. We have procedures in place to assist our Customers with severe allergies to peanut dust and will make every attempt not to serve packaged peanuts on the aircraft when our Customers alert us to their allergy to peanut dust. We ask that Customers with allergies to peanut dust advise our Reservations Sales Agents of the allergy at the time the reservation is made. If the reservation is made on southwest.com, there is a field to indicate a peanut allergy on the Payment and Passenger Information page during the booking process. If the reservation is made via travel agent, the Customer should telephone 1-800-I-FLY-SWA afterward to speak with a Reservation Sales Agent.