Furniture has a general in the person's health specifically the floor covering. There are some problems which faces the customers because of using some textiles production . studying what is contained between knots such as microorganism in the houses of some families in Damietta city. Studying the most spreading kinds of organism categories in floor furniture. Studying the most infected categories from the allergy and its relation with kind of the floor covering.. Studying the followed caring methods which reduces spreading  microorganism that caused a lot of diseases. It has been used two studies for achieving these aims, the first one is field and the second is laboratory. The results of the study have showed the following: The results have showed that there are varieties in ages of the infected sample allergy. That allergy Percentage for children 26%. 27.58%male, 25% Percentage female. The result have showed that there is a correlation relation between using floor covering and infected sample by allergy so, it reaches to highest for children for youths. The results have showed that there correlation between kinds of allergy different floor covering and rate for Etta coefficient infected noise allergy it was the highest rate 90.2%. For eyes allergy it was the highest rat 73.7%.  The amount of microorganism have been counted that are found in three kinds in carpets before using followed ways caring for reducing of these microorganism, after using for six months then they have been gathered, after six days from using and after using it for ten days without cleaning. Kinds of microorganism found in carpets After checking the samples microscopic all, the Kinds have been finally known. 1- Dermato phagoides Pteronyssinus 2- Dermato phagoides farinae The following caring ways for reducing the spread of microorganism. a- wool carpets       The results showed that the best way for reducing these microorganism is wet cleaning  for wool after six day without cleaning and after 10 days without cleaning. B- poly olefin carpets       The results showed that the best way for reducing these   microorganism is dry clean for poly olefin after six day and after 10 days without cleaning. C- Poly propylene carpet       The result clarified the best way for reducing these microorganism is dry clean for poly propylene after six day without cleaning and after 10 days without cleaning.