Carpets and rugs
There are some cotton or wool carpets which have not been treated using harmful substances. In other cases, an intensive washing process could reduce the presence of some of these chemicals if they have been used.
Natural materials also improve the conditions of electrostatic charge and ionisation better than synthetic materials. Remember also that, for fixing and fitting carpets, there are natural adhesives available (using things such as water-based vegetable oils, lignin, resins, talc or borax etc.).
To clean your carpets, it is better to use a softer natural soft or to use a mixture of bicarbonate of soda and water.