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Reducing Smokers’ Exposure to Cigarette Smoke Toxicants – Our first clinical study results - Media files

We have shown in our first clinical study of our novel prototype cigarettes that it is possible to reduce smokers’ exposure to certain smoke toxicants.

Contained on this page are a selection of videos and images for use in media stories related to this press release.

 Video content

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 Related images

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Treating Tobacco (8.5mb)

After the tobacco is washed, the liquid is passed through a resin that removes certain toxicant precursors in a manner similar to a water filter.


Dilution (4.3mb)

A non-tobacco sheet made from chalk and alginate, a seaweed extract, and loaded with glycerol is mixed with tobacco. When burned, the glycerol dilutes the resulting smoke.


Resin (3.8mb)

A resin used in water filtration was adapted to trap toxicants not captured by the carbon filter, such as aldehydes and hydrogen cyanide.


Carbon Beads (8.2mb)

The internal surface area of the carbon beads used in the filter of one cigarette is equivalent to that of 1/3 of a tennis court.


Prototype Cigarette (8mb)

A nanoporous carbon and an anime-functionalized resin were used in the filter of prototype reduced toxicant cigarettes.


Three Prototypes (6.9mb)

Three prototypes were created by combining the 4 novel toxicant-reduced technologies in different ways.


Prototype B (7.6mb)

All prototypes yielded substantially reduced levels of many volatile toxicants compared to conventional cigarettes in smoking machine tests.


Prototypes A, B and C, Biomarkers of Exposure (5.5mb)

Smokers of prototypes had statistically significant reductions in exposure to acrolein and one, three butadiene - reductions were greater and sometimes much greater than 50 per cent.


Prototype B, Biomarkers of Exposure (5.4mb)

One prototype was particularly successful at reducing tobacco-specific nitrosamines by around 90 per cent, as well as reductions in exposure to the carcinogens 3- and 4-aminobiphenyl by around 40 per cent.


Scientific Collage (7.6mb)

The results of our first clinical study of prototype cigarettes containing technologies designed to reduce toxicants in smoke show that we can reduce certain toxicant exposure levels, but we do not yet know whether this is meaningful in terms of health risks.