In Florida, cockroach allergens can linger long after the roaches are gone,...

https://future-wiki.win/index.php/How_Do_I_Reduce_Roaches_Without_Making_My_House_Smell_Like_Chemicals%3F

In Florida, cockroach allergens can linger long after the roaches are gone, making asthma symptoms worse for many families. These tiny particles hide in cracks and corners, especially in humid areas