In Florida, cockroach allergens are a hidden trigger for asthma...

https://extra-wiki.win/index.php/Do_Bug_Bombs_Actually_Kill_Roaches_in_Walls_and_Under_Appliances%3F

In Florida, cockroach allergens are a hidden trigger for asthma sufferers—sticking around long after the roaches have left. These allergens can linger in your home’s nooks and crannies, quietly affecting air quality