Second Hand Smoke 😒

Samoan
Anybody ever dealt with second hand smoke from another person in the house? This is not my family so I can't just go across the hall and tell him to put it out since the mom says nothing. Their dad has enough decency to go outside, but the brother just smokes constantly and even with our door closed it's strong! I'm praying we will can move before the baby is born but does anybody have any tips to minimize health issues for the baby if we have to stay here longer? Not to mention their mom has health problems but he still smokes in here anyway 😒