By John Glenday, Reporter

April 2, 2012 | 2 min read

A new campaign highlighting the health threats posed by second hand smoke is being aired in England by the government.

Designed to encourage smoke free homes and cars the hard hitting TV and radio campaign aims to show how deadly smoke can be – even if you can’t see it.

Invisible, odourless gases can permeate an environment long after a cigarette has been stubbed out, illustrated in the ads as blankets of smog drifting around a home and car.

As much as 85% of all second hand smoke is comprised of this invisible, noxious, gas prevails in this form according to a study by the National Research Council.

This means that anyone in an enclosed environment with a smoker are at increased risk of lung disease and cancer as a result of inhaling carcinogens, leading to calls for smoking to be banned in cars when children are present.

Health Secretary Andrew Lansley said: "This campaign will raise awareness of this danger and encourage people to take action to protect others from second-hand smoke.

"Next week we will end tobacco displays in large shops. We will also be consulting on plain packaging this spring."