 The drapery can be laundered or dry-cleaned as recommended by the drapery manufacturer.In the case of fabrics that are designated as "fire-retardant", that have been topically treated with chemicals, the flame retardancy of the fabric will dissipate over time, particularly with repeated cleaning.As these chemicals are soluble in liquids-either water or dry cleaning fluid, these fabrics must be dry-cleaned with a non-liquid cleaning agent.