Traffic pollution is a group of airborne contaminants that are generated by cars and other motorized vehicles. Traffic pollutants are made up of both particles (e.g. metals, elemental carbon, organic carbon, and sulphate etc.) and gases (carbon monoxide, nitrogen oxides, toxic air contaminants such as benzene, formaldehyde, 1, 3-butadiene, and nitroarenes etc.). Mounting evidence indicates a causal effect between exposure to air pollution from traffic and the development of asthma in children and adults. Diesel exhaust for example is known to cause lung cancer. In several countries (e.g. in the United Kingdom), traffic pollution is several times more deadly than traffic accidents. Traffic pollution is also linked to childhood cancer. In fact, in a recent meeting, the International Agency for Research on Cancer (IARC), the cancer arm of the World Health Organization, classified diesel exhaust as carcinogenic and gasoline exhaust as possibly carcinogenic to humans. The IQAir HealthPro 250 New Edition provides full spectrum of air filtration with the gas filtering performance of over 50 gas masks. Where even higher gas filtering performance is required, the IQAir GC MultiGas can provide the perfect solution with gas filtering capacity of over 100 gas masks.