SUSUMU NISHINAGA / SCIENCE PHOTO LIBRARY SUSUMU NISHINAGA / SCIENCE PHOTO LIBRARY
Cigarette filter. Coloured scanning electron micrograph (SEM) of the filter of a cigarette. This filter contains acetate fibres (brown) and grains of charcoal (grey). These help to remove toxic chemicals and unpleasant odours from the cigarette smoke. Magnification unknown.
Model release not required. Property release not required.