Viscose rugs are characterised by tonal variations that may be affected by the light in a room as well as the angle from which the rug is viewed. Shifting highlights and lowlights in the surface color of the rug are to be expected. Cleaning� : Do not wash. We recommend gently vacuuming this rug once or twice weekly with a brush attachment. Do not use an abrasive rotary brush head as this may damage to the rug. Stain Removal� : Wipe the stain carefully with a mixture of lukewarm water. Absorb excess liquid with a dry microfiber cloth.