| dayclardy | Дата: Суббота, 27.09.2014, 20:57:11 | Сообщение # 1 |
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| Chemical interactions produce new chemicals, and moisture on many surfaces support the life, reproduction and evolution of microorganisms. The microorganisms http://constructor.net16.net themselves produce chemicals, some of which can alter the pH of the surface and subsequent surface chemistry.Buildings are designed or intended to respond actively to some of these changes in and around them with heating, cooling, ventilating, air cleaning or illuminating systems. .We clean, sanitize, and maintain surfaces to enhance their appearance, performance, or longevity.
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