BBC NEWS | Health | Warning over 'third hand smoke'

BBC NEWS | Health | Warning over 'third hand smoke': "Many people are unaware that even smoking away from babies or pregnant women presents a risk, according to US research.

Poisons in cigarette smoke can linger on fabrics or hair, but a survey of 1,500 households found that fewer than half of smokers knew this.

Only a quarter had strict rules about not smoking in the house, according to the report in the journal Pediatrics."