Even when you don’t see cockroaches, their allergens can still linger and...

https://brooksssuperop-ed.tearosediner.net/what-s-the-difference-between-extermination-and-allergen-removal

Even when you don’t see cockroaches, their allergens can still linger and aggravate asthma, especially here in Florida where roaches stick around all year. These tiny particles hide in corners and behind appliances, making breathing harder for some