The main pollutants are formaldehyde, benzene, xylene and other organic substances and ammonia, carbon monoxide , carbon dioxide and other inorganic substances; physical pollution mainly comes from the building itself, granite stone, some sanitary ware and household appliances, etc.Its main pollutants are radioactive substances and electromagnetic radiation; biological pollution is mainly caused by the milder mildew in the living room walls, The main pollutants produced by carpets are bacteria and germs.The 13th Xi'an International Furniture Fair opened yesterday and the 13th Xi'an International Furniture Fair opened yesterday.
The Yesterday, the 13th Xi'an International Furniture Fair opened at Qujiang International Convention and Exhibition Center, and more than 600 well-known domestic and foreign furniture companies Exhibitors. Some companies also brought traditional hand-carved unique skills to the exhibition site,
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