Hygienist Dr Lisa Ackerley, talks about dirty cars

How dirty is your car? Do you have to wipe the dust off every time you use it? Shockingly, drivers in the UK don't seem to care about the build-up of germs and potentially harmful bacteria in their cars. Scientists at Salford University who carried out a unique experiment to determine how dirty the inside of our cars really get - and it's worse than many people realise. For more information, Robyn Dwyer spoke to hygienist Dr Lisa Ackerley.