Each item undergoes a rigorous 6 stage cleaning process. This includes: cleaning using water and mild detergents, vacuuming wet or dry, sanitizing using hot and pressurized steam cleaners, drying, reassembly and repackaging. Quality control tests are conducted throughout the different stages. All materials are plant based, dye-free and scent free. If you need to wash the item, please follow the washing instructions on the product label and can also be found in the product instruction manual.