Can breathing in a bad smell cause Lung cancer?

This question is something my friend wanted me to ask.

He has a pet rat who cage smells really bad it's been like that for a little over a week (your supposed to change it once a week but he has been sick ) and he has been laying in bed smelling it for the past week, this isn't the first time it has smelt bad before and he was wondering if it cud seriously harm him (sorry for spelling errors I'm writing this quickly on my iPhone)

No. I don't thing rat urine & droppings have any cancer causing agents in them that are airborne.

Not necessarily. Unless the air you're breathing has contaminants in it that can trigger causing your lungs to get busted. However, rat poop stinks and there are certain contaminants that go with the fumes that may harm him.

Nope. If its a dead rat it'll cause stomach aches. You have to put the cage out. That could cause him to get more sick.

No, but it can cause disease. It should be cleaned more often.

  • Why does my new iPhone case smell? I just got a new iPhone case from Claires and it smells musty It's one of them stretchy ones. How can I get rid of the smell?
  • Why does my iphone 5 case say it can cause cancer? So I got an iphone 5 case at tjmax and when I bought my case it said a warning on the box of my case which said "this case has chemical products and it's known in the state of California that It can cause cancer, birth defection, and harm. What does that mean? What shouldn't I do with my case so that none of those warnings happen?
  • Upper right back pain and neck pain. Is it lung cancer? I have mild scoliosis and spend several hours a day on the couch watching videos or movies on my iphone. The pain comes and goes. I don't exhibit any other symptoms of lung cancer. I have never done drugs or smoke at all. I don't feel pain when I breath in deeply. There's mild pain in my neck and lower skull. Is it cancer or poor posture and scoliosis?
  • Is it bad for health to work in a ihone cases store with full of plastic smell? I work as a store keeper in a iphone cases store, all this product made in china with full of heavy plastic smell, i have to access them everyday. Is it bad for my health to work in this environment? Does wearing a surgical mask help?