Cigarette Smoke and Combustion Gases Combustion gases & particles from stoves in kitchen may cause allergy.           Combustion Gases   Some combustion products produced in cooking or heating with gas stoves, barbeque grill, and unvented kerosene and gas space heaters etc. may trigger allergic reactions in the respiratory tract. These combustion products include carbon monoxide, nitrogen dioxide, as well as respirable particles. Poorly ventilated wood-burning stoves and fireplaces also give off extra harmful gases of sulphur dioxide, formaldehyde, and benzopyrene.   To reduce exposure to combustion allergens, allergic people may use electric stoves and electric heaters instead. In case combustion cooking or heating is unavoidable, good ventilation should be maintained to minimize the allergen levels.   Cigarette Smoke   Smoke from cigarette may result in allergic reactions such as burning or watery eyes, nasal congestion, coughing, hoarseness and shortness of breath. In severe cases, it may trigger asthma. Secondhand smoke also worsens other allergy / respiratory problems such as rhinitis, conjunctivitis, sinusitis and bronchitis.   Secondhand smoke consists of exhaled smoke from smokers and side stream smoke from the burning end of a cigarette, cigar or pipe. Secondhand smoke contains more than 4,000 substances, including over 40 compounds that are known carcinogens. Many of them are potent airborne allergens.   Children are more vulnerable than adults to the effects of secondhand smoke from cigarette because they breathe more rapidly and hence take in more secondhand smoke. Children with heavy-smoking mothers run the greatest relative risk of experiencing damaging health effects.   People with allergy should not to smoke and don't allow the others to smoke in your home, car or work place.   Related web page: Smoking not only kills, but also makes you blind