if a person is allergic to house dust they can develop a chronic illness (chronic allergies) from it. house dust is not a cause of lung cancer unless that dust had carcinogens in it like asbestos. maybe your boyfriend should come to your house from now on.
can household dust cause chronic illness? . my boyfriend's house is very dusty. there are knicknacks everywhere so shelves and other surfaces don't get dusted. his mom admits that she hasn't dusted certain areas of the house in years or vacuumed uner the couch. i recently saw behind their entertainment center and there was about a half an inch thick layer of dust. my boyfriend and his brother are always clearing their throats and they always have. his dad is also going through chemo for lung cancer and the house is still dusty.