Floor and carpet maintenance, for example, can reduce soil dust and other allergens carpets are often used in schools so that comfort for sitting and walking and learning environment that is peaceful and more secure. "Carpet is just easy and affordable solid surface dulaekwa" Ken workbook ชอำนวย to the technical side of the carpet and Rug Institute, said, "all it takes is regular attention to the extraction point and cleaned twice a year. Carpet cure properly can help improve air quality in schools because of dust on the carpet is not easily again suspended, and will be kept away from breathing zones.
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