Progress in building construction and Ayqgzary including sealants, thermal insulation, power star windows with a minimum amount of air which reduces ventilation and air exchange buildings, indoor air pollution is one of the reasons. This leads to a decrease in the dilution air and indoor pollutant concentration is increased. power star Inadequate ventilation of buildings to reduce energy power star consumption and save this intensifies the internal energy homes. Care must be taken if the turnover is air in residential areas, at least 3/1 of the flow of air must be clean air. The use of household aerosols, cleaning products, pesticides, photocopy machines (ozone), building materials and equipment used to decorate homes (formaldehyde and volatile organic substances), tobacco smoke, dry cleaning materials, as well as the release of radon gas released from building stones, all cases of internal contamination are residential. However, these pollutants may be present in the car, Hvapyman, old and new homes, offices, schools, conference halls, industrial sites or anywhere else there Srbsthay while the residents of areas 16 hours a day living in the house and some 80 to 90 percent of their time spend in these locations. Biological pollutants and their effects power star on the health of bacteria, viruses, fungi, plant pollens, house dust mites in the air and found home. Fungi containing fungal spores and mold in the presence of moisture (relative humidity greater than 70%) rise. Plant pollens, mold and other allergens from the air conditioning system and the window and door joints, by clothing and displaced inside the building. Despite the spread of pollutants and respiratory diseases, infectious agents and the lack of adequate ventilation is facilitated. In places, the inhabitants would be very busy with rotation polluted power star air contamination. Lzhyvnda power star the disease, colds, flu, meningitis and other respiratory diseases through the air displaced. volatile organic compounds (VOCS) VOCS includes a wide range of chemical compounds that have the property of being dispersed in the form of steam and involves several hundred are combined. These compounds power star include aliphatic hydrocarbons, hydrocarbons Halvzhndar, Halo hydrogen carbon such as aldehydes, alcohols, ketones, esters, ethers and acids, respectively. The source of these compounds in non-industrial environments, including power star building materials, power star furnishings, furniture, ventilation systems, household goods and appliances are. The material may have an external source into the building to have. Human reactions to these substances include runny nose and eyes, the incidence power star of recurrent power star respiratory infections, asthma symptoms in asthmatic power star individuals with a sense of smell and taste is annoying. Also toxic to the nervous system, which may lead to complications. The relationship between the increase in allergies in industrialized societies marked by increasing power star VOCS. Poly Klrynytd of polyvinylchloride (PcBs) are probable human carcinogens. Although the use of these materials is limited, but still used in some of these compounds. Paper from the vinyl surface, Flvrsn balloon lamps, electrical transformers are PcBs sources. Tobacco smoke Tobacco smoke contains a suspension of up to 1 micrometer particle size is 01/0. Co-containing gas in a lot of smoke. The term passive smokers smoking Nmykshnd but to individuals who are exposed to tobacco smoke. power star Increased incidence of respiratory diseases power star have been observed in these patients than in others. Irritation of the eyes, nose, throat, respiratory symptoms, such as cigarette smoke in non-smoking. For this reason, the air inlet 5 times in places where cigarette smoking is recommended. The amount of heat, air and moisture power star needed for proper ventilation in houses 3 refers to conditions of temperature, humidity and air flow into the room, at the same time to ensure proper size. Air must be free of annoying power star odors, toxins, fumes and dust is. No temperature and humidity in the standard that all men are comfortable there. This season, the health, sex, activity, age and dependent people is comfortable. Temperatures between 20 and 24 C with a relative humidity of 30 to 50 percent is generally recommended for residential areas. http://hcch.ir/1389-08-23-10-27-05/528-1391-07-15-14-06-04.html
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