According to the data of Health Network, generally speaking, the white thing in the sofa pillowcase will not be asbestos. Asbestos, also known as "asbestos", refers to silicate mineral products with high tensile strength, high flexibility, chemical and thermal erosion resistance, electrical insulation and spinnability. It is the general name of natural fibrous silicate minerals.
Common white things in sofa pillowcases may be foam particles or cotton, and sofa pillowcases are often filled with foam particles or cotton. These materials are white and soft, which can provide comfortable support. Or fiber balls, are also widely used to fill sofa pillowcases. They are usually white, soft and have good elasticity and thermal insulation.