Crawl space rodents can affect the air inside your home because contaminated droppings, urine

https://griffincxbv927.alderbrief.com/posts/the-link-between-crawl-space-rodents-and-the-air-inside-your-home

Crawl space rodents can affect the air inside your home because contaminated droppings, urine, and nesting materials may create particles people can breathe if the area is disturbed.