The WHO study showed that in 2012 4.3 million of the world's deaths from kitchen air pollution accounted for 34% of strokes, with chronic obstructive pulmonary disease and ischemic heart disease 22% and 26% respectively, compared to about 6% of those who died of lung cancer.
Kitchen air pollution (smog) has been identified as the biggest health hazard after high blood pressure, smoking and alcoholism in a study on disease risk assessment in The Lancet, a prominent British medical journal. The number of deaths caused by continued inhalation of smoke from kitchen fires each year is more than the total number of deaths from malaria, tuberculosis and AIDS.
The study of Chinese farmers in the Journal of the National Cancer Society of America also confirms the impact of kitchen air pollution on human health. Chinese and American scientists in the study surveyed more than 20,000 farmers in Yunnan province to find that farmers with no ventilation in their stoves were twice times more likely to have lung cancer than those who had built chimneys or ventilation in their homes. The researchers say that the use of stoves with no ventilation is similar to that of smoking in the extent of lung cancer.
Air purifier also known as adsorption, decomposition or conversion of various air pollutants (generally including PM2.5), dust, pollen, odor, formaldehyde, such as decoration pollution, bacteria, allergens, etc., effectively improve the air cleanliness of products, mainly used in household, commercial, industrial, building.